Calculate the value of each expression.
1) (-5)
/
4
2) (-5)-(-/-)
3)-20
4)-20
(-20)
(4)
5)

Calculate The Value Of Each Expression.1) (-5)/42) (-5)-(-/-)3)-204)-20(-20)(4)5)

Answers

Answer 1

Answer:

1) -15/4 or -3.75

2) 15/4 or 3.75

3) 5

4) -5

5) -5

Step-by-step explanation:


Related Questions

An extrasolar planet is observed at a distance of
4.2 × 10⁹ kilometers away. A group of scientists
has designed a spaceship that can travel at the
speed of 7 × 108 kilometers per year. How many
years will the spaceship take to reach the extrasolar
planet? Enter the answer in the box.

Answers

After conducting some mathematical operations, we can conclude that it would take the spaceship 5555556 years to reach the extrasolar planet.

What do we mean by mathematical operations?A mathematical function known as an operation converts zero or more input values into a precisely defined output value.The quantity of operands affects the operation's arity.The four mathematical operations are functions that change one number into another by taking input values, or numbers, as inputs.They are addition, subtraction, multiplication, and division.

So, years were taken by the ship to reach the extrasolar planet:

Distance of the planet: 4.2 × 10⁹ kmSpeed of the spaceship: 7 × 108 per/year

Now, calculate the number of years as follows:

= (4.2 × 10⁹)/(7 × 108)= (4.2 × 1000000000)/756= 4,20,00,00,000/756= 5555555.56

Rounding off: 5555556 years

Therefore, after conducting some mathematical operations, we can conclude that it would take the spaceship 5555556 years to reach the extrasolar planet.

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You have 1/5 of a box of erasers and you need to share them with 3 total people, including yourself. What fraction of the box should each person get?

Answers

You have 1/5 of a box of erasers

Number of box of erasers = 1/5.

you need to share them with 3 total people, including yourself

Total number of people = 3 + 1( yourself)

Total number of people = 4

Since, we have to distribute the box of erasers to 4 people

So, divide 1/5 by 4:

[tex]\begin{gathered} \frac{1}{5}\text{ }\div4=\frac{\frac{1}{5}}{4} \\ \frac{1}{5}\text{ }\div4=\frac{1}{5}\times\frac{1}{4} \\ \frac{1}{5}\text{ }\div4=\frac{1}{5\times4} \\ \frac{1}{5}\text{ }\div4=\frac{1}{20} \end{gathered}[/tex]

The fraction of the box that each person will get is 1/20

Answer: 1/20

Which of the following values have 3 significant figures? Check all that apply.A. 10.1B. 100.05C. 120D. 129

Answers

The number of significant figures in 10.1 is 3 as there are two digits before the decimal and one digit after the decimal.

The number of significant digit in 100.05 is 5 as there are 3 digits before the decimal and two digits after the decimal.

The number of significant digits in 120 is 2.

The number of significant digits in 129 is 3.

Hence, the correct answers are (A) and (D)digit

Given rectangle BCDE below. If BF = 22, find EF.

Answers

Okay, here we have this:

Considering the provided graph, we are going to find the requested measure, so we obtain the following:

Let us remember that a rectangle besides having the properties of a parallelogram also stands out because it has congruent diagonals. So considering this we have:

BD=EC

EF=BF

EF=22

Finally we obtain that EF is equal to 22 units.

A painting is worth $9000 in 2007. The value of the painting increases by 12% eachyear.Estimate the length of time it takes for the value of the painting to double.

Answers

Step 1

State the formula for exponential growth

[tex]P(0)=P(1+r)^t[/tex]

where;

[tex]\begin{gathered} P=\text{ worth in 2007=\$9000} \\ r=rate=\frac{12}{100}=0.12 \\ t=\text{ time for growth in years} \\ P(0)=\text{ Required value of growth in t years} \end{gathered}[/tex]

Step 2

Find double the value of the painting.

[tex]2P=9000\times2=\text{ \$18000}[/tex]

Step 3

Estimate the length of time it takes for the value of the paint to double

[tex]\begin{gathered} 18000=9000(1+0.12)^t \\ \frac{18000}{9000}==\frac{9000(1+0.12)^t}{9000} \\ 2=(1+0.12)^t \end{gathered}[/tex][tex]\begin{gathered} \ln 2=\ln (1.12)^t \\ \ln 2=t\ln (1.12) \\ \frac{t(\ln1.12)}{\ln1.12}=\frac{\ln2}{\ln1.12} \\ t=6.116255374\text{ years} \\ t\approx6.1163years\text{ approxi}mately\text{ to 4 decimal places} \end{gathered}[/tex]

Hence, it will take approximately 6.1163 years for the value of the paint to double.

3. Which of the following points would produce a negative slope? (A) (B) (C) (D) (-1,2) and (4,2) (-2,-2) and (0,4) (1,3) and (-1,4) (2,4) and (-2,-1)

Answers

The sequation to calculate the slope is,

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

The solpe of line joining (-1,2) and (4,2) is,

[tex]\begin{gathered} m=\frac{2-2}{4+1} \\ m=0 \end{gathered}[/tex]

The slope of the line joining (-2,-2) and (0,4) is,

[tex]\begin{gathered} m=\frac{4+2}{0+2} \\ m=3 \end{gathered}[/tex]

The slope of the line joining (1,3) and (-1,4) is,

[tex]\begin{gathered} m=\frac{4-3}{-1-1} \\ m=-\frac{1}{2} \end{gathered}[/tex]

Negative slope.

The slope of the line joining (2,4) and (-2,-1) is,

[tex]\begin{gathered} m=\frac{-1-4}{-2-2} \\ m=\frac{5}{4} \end{gathered}[/tex]

Positive slope.

What is the area of the circle to the nearest 10th unit?

Answers

First, lets find the radius of the circle.

For a circle inscribed in a square, the diameter of this circle is equal to the side lenght.

D = 4.4

Since the radius (r) is D/2

r = 4.4/2 = 2.2

Now, we can calcule the area of the circle (A), using the following equation:

[tex]\begin{gathered} A=\pi\cdot r^2 \\ A=\pi\cdot2.2^2 \\ A=4.8\pi units^2 \\ Or,\text{ since }\pi=3.14 \\ A=4.8\cdot3.14 \\ A=15.2\text{ }units^2 \end{gathered}[/tex]

The cost of 15 toys is $225. Identify the equation that represents this situation.

Answers

Question:

Solution:

Let us denote by c the cost of each toy. Then, according to the problem, the cost of 15 toys would be:

[tex]15c\text{ = 225}[/tex]

So, we can conclude that the correct answer is:

[tex]15c\text{ = 225}[/tex]

A triangular banner has an area 2000 square yards. Find the measures of the base and height of the triangle if the base is five-eighths of the height. What are the units of measurement.

Answers

ANSWER:

Height = 80 yds

Base = 50 yds

STEP-BY-STEP EXPLANATION:

Given:

Area = 2000 square yards

Height = h

Base = 5/8h

We can calculate the value of the height using the triangle area formula, just like this:

[tex]\begin{gathered} A=\frac{b\cdot h}{2} \\ \text{ We replacing} \\ 2000=\frac{h\cdot \frac{5}{8}h}{2} \\ h^2=\frac{2000\cdot2\cdot8}{5} \\ h=\sqrt{6400} \\ h=80\text{ yd} \\ \text{ therefore, the base is:} \\ b=\frac{5}{8}\cdot80 \\ b=50\text{ yd} \end{gathered}[/tex]

Height = 80 yds

Base = 50 yds

uhh im stuck and im stressed .. and i dont understand area model math..

Answers

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

(5x + 6)(2x² + 3x + 8) = ?

Step 02:

Area Model

First, you must multiply the values in the rows by each of the values in the columns.

Then, you must add all the values resulting from the multiplications.

10x³

2x²

+ 12x²

15x²

18x

3x

40x

48

8

--------------------------------------------

10x³ + 29x² + 61x + 56

The answer is:

(5x + 6)(2x² + 3x + 8) = 10x³ + 29x² + 61x + 56

Question 5 Multiple Choice Worth 1 points)(05.02 MC)A nurse collected data about the average birth weight of babies in the hospital that month. Her data is shown using the dot plot. Create a box plot to represent the data.Monthly Birth Weight:8.28.3 8.4 8.5 8.6Birth Weight (in pounds)82 83 8.4 85 86 87 8.882 8384 8.5 86 87 60 6.982 83 84 8.5 8.6 8.7 8.0 8.9 98283 84 85 86 87 88 8.998.1816.181$F

Answers

Given:

Here we have data about the average birth weight of babies in the hospital that month.

Required:

We need to create a box plot to represent the data.

Explanation:

Here we have monthly birth weight in pounds as

8.2 , 8.2 , 8.3 , 8.3 , 8.4 , 8.4 , 8.5 , 8.5 , 8.5 , 8.7 , 8.9

now by data we get Q2 is 8.4

now for this data

8.2 , 8.2 , 8.3 , 8.3 , 8.4

we get Q1 is 8.3

by this data

8.5 , 8.5 , 8.5 , 8.7 , 8.9

we get Q3 is 8.5

and we have maximum 8.9 and minimum 8.2

now make a box plot

Final answer:

The triangles below are congruent by SSS, so we can say that < E is congruent to ______ by CPCTC.

Answers

The triangles are given to be congruent by the side-side-side (SSS) congruence property.

Hence, the congruent statement is:

[tex]\triangle DEF\cong\triangle HIJ[/tex]

It is required to complete the given statement.

Recall that CPCTC means Corresponding Parts of Congruent Triangles are Congruent.

The corresponding part to E is I. Hence, by CPCTC, the angle congruent to ∠E is ∠I.

The answer is option b.

Andre drew a plan of a courtyard at a scale of 1 to 60. On his drawing, one side of the courtyard is 2.75 inches. What is the actual measurement of that side of the courtyard? Show your work.

Answers

Okay, here we have this:

Considering that the scale is of 1 to 60, we obtain the following:

2.75 inches * 60 =165.

the top ten medal- winning nations in a tournament in a particular year are shown in the table. use the given information and calculate the mean number of gold medals for all nations

Answers

[tex]\begin{gathered} \mu=\frac{\Sigma x}{n}=\frac{14+14+11+8+8+5+1+5+5+6}{39+31+29+22+20+17+16+15+15+13} \\ \mu=\frac{77}{217}=0.354838\approx0.4 \end{gathered}[/tex]

Please help me and tell me the process I have a test in an hour.Value of x.

Answers

Vertical angles are congruent.

From the figure, angle 3 and angle (7x + 3) are vertical angles, therefore angle 3 is (7x + 3)

Angle 1 and 127 degrees are supplementary angles and have a sum of 180 degrees.

That will be :

[tex]\begin{gathered} \angle1+127=180 \\ \angle1=180-127 \\ \angle1=53 \end{gathered}[/tex]

Angle 2 and 133 degrees are also supplementary angles and have a sum of 180 degrees.

That will be :

[tex]\begin{gathered} \angle2+133=180 \\ \angle2=180-133 \\ \angle2=47 \end{gathered}[/tex]

Now we have angles 1, 2 and 3 which are angles in a triangle, and the sum of interior angles in a triangle is 180 degrees.

[tex]\begin{gathered} \angle1+\angle2+\angle3=180 \\ 53+47+(7x+3)=180 \\ \text{Solve for x :} \\ 100+7x+3=180 \\ 7x+103=180 \\ 7x=180-103 \\ 7x=77 \\ x=\frac{77}{7} \\ x=11 \end{gathered}[/tex]

ANSWER :

x = 11

Use the x and y intercepts to sketch a graph of each equation.

Answers

The given equation is expressed as

x + 4y = 8

4y = 8 - x

y = 2 - x/4

The first step is to input values for x into the equation and determine the corresponding y values. These values are then plotted on the graph.

For x = 0, y = 2 - 0/4 = 2

For x = 1, y = 2 - 1/4 = 1.75

For x = 2, y = 2 - 2/4 = 1.5

We would plot these points on the graph

For the simple harmonic motion equation d=5sin (pi/4^+), what is the period?

Answers

the period is 8

Explanation

the function sin has the form

[tex]\begin{gathered} y=Asin(B(x+c))+D \\ where \\ Period=\frac{2\pi}{B} \end{gathered}[/tex]

so

Step 1

a) identify B in the given function

given

[tex]d=5\text{ sin\lparen}\frac{\pi}{4}t)[/tex]

hence

[tex]\begin{gathered} \frac{\pi}{4}t\Rightarrow B(t+c) \\ so \\ c=0 \\ \frac{\pi}{4}t=Bt \\ therefore \\ B=\frac{\pi}{4} \end{gathered}[/tex]

b) now, replace in the formula to find teh period

[tex]\begin{gathered} Per\imaginaryI od=\frac{2\pi}{B} \\ Period=\frac{2\pi}{\frac{\pi}{4}}=\frac{2\pi *4}{1*\pi}=\frac{8\pi}{\pi}=8 \\ so \\ Period=8 \end{gathered}[/tex]

therefore, the period is 8

I hope this helps you

Answer:

8

Step-by-step explanation:

A

P

E

X

Three different transformation are performed on the shaded triangle. Each transformation results in on of three images. Match each image to the transformation applied on the shaded triangle

Answers

We are given a triangle and three possible transformations performed on it. The first transformation shows that the triangle has no change in orientation, therefore, this transformation is a translation only.

For image 2 we notice that the orientation of the triangle changes. If we draw a horizontal line in the middle of the shaded triangle and image 2 we notice that these two images are related by a reflection, also after this reflection the image was translated therefore, for image two we have reflection across a horizontal line followed by a translation.

For image 3 we can draw a vertical line in the middle of the shaded triangle and image 3 and we do a reflection across this vertical line since there is a change in the orientation of the figure.

Find the distance between the pair of parallel lines with the given equations.y = -5xy = -5x + 26O A) 5 unitsO B) 14.14 unitsC) C) 5.10 unitsO D) 6 units

Answers

Solution:

Consider two lines with the following equations:

[tex]y_1=mx+c[/tex]

and

[tex]y_2=mx+c_2[/tex]

the distance d between these two parallel lines is given by the following equation:

First, we need to take one of the lines and convert it to standard form. For example, take the line:

y = -5x + 26

then, we obtain:

-5x-y+26=0

in this case, we get that

A = -5

B= -1

C = 26

Now we can substitute A, B, and C into our distance equation along with a point, (x1,y1) from the other line. We can pick any point on the line y2. Just plug in a number for x, and solve for y. I will use x = 2, to obtain:

y = -5(2) = -10

then

(x1,y1) = (2,-10)

Replacing these values into the distance equation, we obtain:

[tex]d\text{ = }\frac{|-5(2)+(-1)(-10)+26|}{\sqrt[]{(-5)^2+(-1)^2}}[/tex]

that is:

[tex]d\text{ = }\frac{|-10+10+26|}{\sqrt[]{(-5)^2+(-1)^2}}=\frac{26}{\sqrt[]{26}}=5.09\approx5.10[/tex]

so that, the correct answer is:

[tex]5.10\text{ units}[/tex]

4x + x + 4 = 8x -3x + 4

Answers

x can take any real value

Explanation

[tex]4x+x+4=8x-3x+4[/tex]

Step 1

add similar terms in both sides

[tex]\begin{gathered} 4x+x+4=8x-3x+4 \\ 5x+4=5x+4 \end{gathered}[/tex]

Step 2

subtract 5x+4 in both sides

[tex]\begin{gathered} 5x+4=5x+4 \\ 5x+4-(5x+4)=5x+4-(5x+4) \\ 0=0 \end{gathered}[/tex]

0=00 means that as an equation, its solution is that x can take any real value .

I hope this helps you

log (2x+ 9) = 1+ log(x- 8)

Answers

x = 11.125

STEP - BY - STEP EXPLANATION

What to do?

Solve the given equation.

Given:

log (2x+ 9) = 1+ log(x- 8)

To solve, we will follow the steps below:

Step 1

Re-arrange by subtracting log(x-8) from both-side of the equation.

[tex]log(2x+9)-log(x-8)=1[/tex]

Step 2

Apply the law of logarithm that is applicable to the given problem.

[tex]log\frac{(2x+9)}{(x-8)}=1[/tex]

Step 3

Replace 1 by log10

Step 4

[tex]log\frac{(2x+9)}{(x-8)}=log10[/tex]

Step 5

Cancel-out the log from both-side of the equation.

[tex]\frac{2x+9}{x-8}=10[/tex]

Step 6

Cross - multiply

[tex]2x+9=10(x-8)[/tex]

Step 7

Open the parenthesis.

[tex]2x+9=10x-80[/tex]

Step 8

Collect like term.

[tex]10x-2x=80+9[/tex][tex]8x=89[/tex]

Step 9

Divide both-side of the equation by 8

[tex]\frac{8x}{8}=\frac{89}{8}[/tex][tex]x=11.125[/tex]

Therefore, the value of x is 11.125

A construction worker dropped a hammer while building the Grand Canyon skywalk, 8100 feetabove the Colorado River. Use the formula t=(square root of h)/4 to find how many seconds it took for thehammer to reach the river.

Answers

Given:

[tex]t=\frac{\sqrt[]{h}}{4}[/tex]

To find the time when the height h=8100 feet:

Substitute h=8100 in the given function.

[tex]\begin{gathered} t=\frac{\sqrt[]{8100}}{4} \\ t=\frac{90}{4} \\ t=22.5\text{ seconds} \end{gathered}[/tex]

Thus, the time required for the hammer to reach the river is 22.5 seconds.

Express the answer in simplest formIf A die is rolled one time find the probability of

Answers

Solution

If A die is rolled one time find the probability of getting an even number

The total number in a die rolled once = 6

number of even number = 3

Probability = number of required outcome / number of possible outcome

[tex]\begin{gathered} Pr(evene\text{ number\rparen = number of even / total number} \\ Pr(even)\text{ = 3/6} \\ =\frac{1}{2} \end{gathered}[/tex]

Therefore the probability of getting an even number = 1/2

URGENT!! ILL GIVE
BRAINLIEST!!!!! AND 100 POINTS!!!!!

Answers

Answer:

True.

area of green square + area of purple square = area of red square

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

The number line below shows the values of x that make the inequality x > 1 true. Select all the values of x from this list that make the inequality x> 1 true. a. 3 b. -3c. 1 d. 700 e. 1.052. Name two more values of x that are solutions to the inequality.

Answers

Answer:

(a)3, 1, 700 and 1.05

(b)6 and 9

Explanation:

(a)The values of x from the list that make the inequality x> 1 true are:

3, 1, 700 and 1.05

(b)Two more values of x that are solutions to the inequality x>1 are:

6 and 9.

The adult skeleton consist of 206 Bones in the school and 30 bones in the arm and legs. Out of the 28th skull bones, 14 are facial bones. Six or ear bones and eight are cardinal bones. How many more bones are there in the arm and legs than in the faceA) 2B) 6C) 14D) 16

Answers

We need to compare the number of bones in the arms and legs with the number of bones in the face.

The question says that there are 30 bones in the arms and legs.

The question also says that there are 14 bones on the face.

So, the difference between these will be how many more bones there are in the arms and legs than in the face:

[tex]30-14=16[/tex]

The Jones family took a 12-mile canoe ride down the Indian River in 2 hours. After lunch, the return trip back up the river took 3 hours. Find the rate of the canoe in still water and the rate of the current.

Answers

Answer:

Step-by-step explanation:

As per the distance formula, the rate of the canoe in still water is 5 mph; the rate of the current is 1 mph.

Distance formula:

Distance is defined as the total movement of an object without any regard to direction. So, it is defined as the distance that covers how much ground an object despite its starting or ending point.

Distance = Speed x time

Given,

The Jones family took a 12-mile canoe ride down the Indian River in 2 hours. After lunch, the return trip back up the river took 3 hours.

Here we need to find the  rate of the canoe in still water and the rate of the current.

According to the given question we know that,

Speed downriver = (12 mi)/(2 h) = 6 mph.

Speed upriver =  (12 mi)/(3 h) = 4 mph.

Now, we need to find the canoe's rate in still water is the average of these speeds:

=> (6+4)/2 = 5 miles per hour.

Then the current's rate is calculated as the difference between the actual rate and the canoe's rate:

=> 6 - 5 = 1 miles per hour.

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6.724x
Melinda went for a run. She was doing a great job until she got to a hill. She was so tired
running up the hill that she tripped over a rock at the top of the hill. She rolled all the way
down the hill. It took her 90 seconds to reach the bottom of the hill. She rolled for 225
feet. What is Melinda's rate of decent?

Answers

The Melinda's rate of decent from the top of the hill is 3.75 ft/sec.

What is termed as the rate of decent/speed?Speed is defined as the proportion of distance traveled to time spent traveling. Because it has only one direction and no magnitude, speed is a scalar quantity. When an object travels the same distance in equal time intervals, it is said to be moving at a uniform speed.

For the given question;

The distance covered by the Melinda after she tripped over a rock at the top of the hill is 225 feet.

The time taken by Melinda to reach the bottom of the hill is 90 seconds.

Then, the rate of decent will be the speed at which she will fall.

Speed = distance/ time

Speed = 225/60

Speed = 3.75

Thus, the Melinda's rate of decent from the top of the hill is 3.75 ft/sec.

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How many solutions does this equation have?-4k + 4k = 0

Answers

Let's try so solve this equation:

[tex]\begin{gathered} -4k+4k=0 \\ 0=0 \end{gathered}[/tex]

When you have a result of 0 = 0, that means the equation has infinite solutions, that is, any value of k we use would satisfy the equation.

So the equation has infinitely many solutions.

A leaking pond loses 16 gallons of water in 47 hours. How many gallons of water will it lose in 33 hours?

Answers

A leaking pond loses 16 gallons of water in 47 hours.

How many gallons of water will it lose in 33 hours?

To solve this question we can use a rule of three:

16 gallons is to 47 hours as x gallons is to 33 hours:

[tex]\frac{16}{47}=\frac{x}{33}\Longrightarrow x=\frac{33\cdot16}{47}=\frac{528}{47}=\text{ 11.23}[/tex]

Answer:

11.23 gallons

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tom and sherri are a man and wife who are married, cohabiting, and raising their three children together. tom's mother and sherri's father are also living in the same household with tom, sherri, and their children. this is an example of a(n) g Given the figure below, determine the angle that is an alternate interior angle with respect to. 1. To answer this question, click on the appropriate angle. Suppose that the functions and g are defined for all real numbers x as follows. f(x) = x + 3; g(x) = 2x - 2 Write the expressions for (fg)(x) and (f - g)(x) and evaluate (f + g)(3) The figure below shows a striaght line AB intersected by another straight line t: Write a paragraph to prove that the measure of angle 1 is equal to the measure of angle 3. (10 points) Solve the following equation for y, simplifying all fractions: 6x + 10y = - 80 a) y = 3 X - 8 5 3 X 8 b) y alw c) y -x + 8 w | | d) y = x 8 Name three characteristics of the nomads of the steppe. Is the image an example of an angle?B65ACO No; AB and BC intersect in more than one point.O Yes; AB and BC do not form a line and share an endpoint.O No; AB and BC form a line.O Yes; AB and BC are perpendicular to each other. what type of galaxy is our milky way galaxy Find the radius of a circle in which a 24 cm chord is 4 cm closer to the center than a 16 cm chord. Round your answer to the nearest tenth. Solve the multiple-angle equation. (Enter your answers as a comma-separated list. Use n as an arbitrary integer. Enter your response in radians.)2 cos 2x 1 = 0 you find the density of an object 4 times 1.3g/ml 1.25g/ml 1.17g/ml and 1.22g/ml now determine the percent deviation from the mean 20 quarts=_ 20_(1 quart) =_20_(1\4 gallon) =_20/4_gallons =_5_gallons assume that movement of a molecule is limited. it can move to the opposite side of the container or stay where it is. if the movement is random, what is the probability (0-100%) that the molecule will move to the opposite side? Sophie can type 129 words in 3 minutes. How many minutes will it take her to type 559 words? How can I complete the square of this equation Y=2x(x+5) Demand is the demand for a good or service that considers only the private benefits of its consumption. use the information provided to write the equation of each circle. center: (12,-13)point on circle: (18, -13) for the past month, the plant in problem s7.1, which has an effective capacity of 6,500, has made only 4,500 hammers per day because of material delay, employee absences, and other problems. what is its efficiency? U.S. law permits? Multiple citizenship Foreigners to enter the U.S without a passport Non citizens can obtain a drivers license in most statesAnd As a U.S. citizen, military service is? Required Not currently required Mandatory for two years Find y if the line through (5, 1) and (6, y) has a slope of 3.