mathematics help pls lol

Mathematics Help Pls Lol

Answers

Answer 1

2.45

add the 2 numbers and divide by 2


Related Questions

eight to the fourth power increased by six

Answers

Answer: 4102

Step-by-step explanation:

8^4 + 6=

4096+6=4102

Which numbers have a digit in the ones place that is 1/10 the value of the digit in the tens place? select all that apply


a. 6,044.7

b 6,339.99

c. 8,101.13

d. 8,066.51

e. 9,777.1

Answers

The numbers having a digit in the ones place that is 1/10 the value of the digit in the tens place are  6,044.7, 8,066.51 and 9,777.1 . Option A, D , E

What is place value?

The place value of a number can be defined as the position of the number is a digit.

Given the digits, we have to determine the numbers of digits in the ones that is 1/10 the value of the digit in the tens place.

⇒ 6044. 7

The ones digit is 4

The tens digit is 40

Take ratio = 4/ 40 = 1/ 10

⇒ 8

The ones digit is 8

The tens digit is 80

Take ratio = 8/ 80 = 1/ 10

⇒  9,777.1

The ones digit is 7

The tens digit is 70

Take ratio = 7/ 70 = 1/ 10

Thus, the numbers having a digit in the ones place that is 1/10 the value of the digit in the tens place are  6,044.7, 8,066.51 and 9,777.1 . Option A, D , E

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greatest common factor 2a and 4ab

Answers

Answer: [tex]2a[/tex]

Step-by-step explanation:

So let's say you're adding [tex]2a+4ab[/tex] and you want to factor that...

well you can take a 2 out of that...

[tex]2(a+2ab)[/tex]

Next, you can take an "a" out of that..

[tex]2a(1+2b)[/tex]

So the greatest monomial factor is 2a... Hope this helps!! Please rate it 5 stars!

The right triangle drawn on the road sign is 10 inches high. If the base of the right triangle is 5 inches, what is the
area of the right triangle formed in the sign?
O 48 sq.in.
O 64 sq.in.
O 25 sq.in.
O 36 sq.in.

Answers

25 sq.in.

The area formula for the triangle is 1/2 b•h
1/2 divided by 5 is 2.5
2.5 x 10 is 25.

Answer:

25 sq.in.

The area formula for the triangle is 1/2 b•h

1/2 divided by 5 is 2.5

2.5 x 10 is 25.

Step-by-step explanation:

Use the inverse of the coefficient matrix to solve the system of equations.
x+2y+3z = 11
2x+3y+4z = -10
−x−4y−8z = −66

Answers

Answer:

  (x, y, z) = (-62, 50, -9)

Step-by-step explanation:

You want the solution to this system of equations using the inverse of the coefficient matrix.

  x+2y+3z = 11

  2x+3y+4z = -10

  −x−4y−8z = −66

Inverse matrix

The inverse of the coefficient matrix is the transpose of the cofactor matrix, divided by the determinant. There are some shortcuts that can be used to make the computation easier. Easiest is letting a calculator find the matrix inverse. (See the first attachment.)

Solution

The solution to the set of equations is the product of the inverse matrix and the constant vector on the right of the equal signs. That, too, can be found using a calculator. (See the second attachment.)

The solution is (x, y, z) = (-62, 50, -9).

Which of the following choices shows the standard form of the equation below?
y= -3/2x +5
A) 3x+2y=10
B) 3x-2y=10
C) -2y-3x=26
D) 3x+2y=26

Answers

Answer:

A

Step-by-step explanation:

y=3/2x+5

2(y+3/2x)=5(2)

2y+3x=10

Can you use absolute value when subtracting two negatives?
- 2 1/2 - (-1 2/3)
or does it only work when one number is negative?

Answers

Yes, it is possible to use absolute value when subtracting two negatives and as such it does not only work when one number is negative.

How to Interpret Absolute Values?

When adding two negative numbers, add the absolute value of the numbers and keep the negative sign.

For example -1 + -2 = - (||-1| + |-2||), which is -(1 + 2) or -3

The absolute value when subtracting two negatives is -2¹/₂ - (-1²/₃) is possible because when subtracting, we will change the subtraction to addition and change the sign of the number being taken away.

Thus, we can conclude that it is possible to use absolute value when subtracting two negatives.

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A group of 25 students participated in a science competition. Their scores are below.
Score (points) 30-39 40-49 50-59 60-69 70-79
Number of Students
5
7
6
4
3
Would a dot plot or a histogram best represent the data presented here? Why?
O Histogram, because a large number of scores are reported as ranges
O Histogram, because a small number of scores are reported individually
O Dot plot, because a large number of scores are reported as ranges
O Dot plot, because a small number of scores are reported individually

Answers

The best graphical representation used to represent the score of 25 students is option A " Histogram, because a large number of scores are reported as ranges "

Histogram is the graphical representation of distribution of numerical data. The  histogram look like a bar graph in appearance, but the frequency of numerical data using rectangles.

In histogram the range is the width of the rectangular bar along the x-axis. The range in the histogram is an approximate value.

In the given data, there are large number of scores are reported. So the given data will be represented in histogram. Therefore correct option is option A "Histogram, because a large number of scores are reported as ranges

Hence, the best graphical representation used to represent the score of 25 students is option A " Histogram, because a large number of scores are reported as ranges "

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Which of the following shows the correct solution steps and solution to
7x-4--18?
O A.
7x-4 =-18
7x-4-4 = -18-4
7x = −14
7x
-14
7
7
=
-
x = -2

Answers

The solution for the equation 7x-4 = -18 is x = -2

The equation given is, 7x - 4 = -18.

We will try to solve this equation using elimination method in the following steps.

7x-4= -18

⇒ 7x-4+4 = -18+4

⇒7x = -14

⇒7x/7 = -14/7

x = -2 is the solution for the given equation.

In the first step, we added 4 on both sides to eliminate -4 on the left side.

In the next step, we divided the both sides by 7 to eliminate the 7 on the left side. Finally, we got the solution as x = -2.

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Grandpa Mayowa and Grandma Quetta gave money to their 5 grandchildren to divide evenly among themselves. Grandpa Mayowa gave 500 dollars and Grandma Quetta gave d dollars. How much money did each grandchild receive? Write your answer as an algebraic expression.

Answers

An expression is a mathematical equation without an equal sign, so the answer would be (500+d)/5, because 500 from grandpas money is being given and we don’t know what grandma is giving but we know it’s in terms of d. So since it has to be given to 5 children, it should be (500+d)/5

Can someone help me with these 2 problem

Answers

Answer:

Step-by-step explanation:

volume of small cuboid=5×2×4=40 cm³

volume of one small cube=(1/2)³=1/8

so number of cubes=40÷1/8=40×8=320

now width of bigger cuboid=9-5=4 cm

volume of bigger cuboid=4×2×12=96

number of small cubes in this cuboid=96÷1/8=96×8=768

total cubes=768+320=1088

you have a $3125 student loan. suppose you pay the loan off in two and a half years(30 months). estimate your monthly payment by ignoring interest and rounding down the amount owed. (round your answer to the nearest dollar.)

Answers

The monthly payment by ignoring intrest and rouning down the amount owed is $104

Given that "you have a $3125 student loan. suppose you pay the loan off in two and a half years(30 months)" and asked to find out the monthly payment by ignoring the intrest and round off the amount to nearest integer.

Total loan=$3125 .

Total time given= two and a half years(30 months)

The monthly payment=[tex]\frac{3125 }{30}[/tex]

The monthly payment=$104

To complete the student loan monthly payment of $104 is required.

Therefore,The monthly payment by ignoring intrest and rouning down the amount owed is $104

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Which of these is not a technique that can be used to randomly assign
students to a treatment group?
OA. Flipping a coin
B. Winning an election for class president
C. Rolling a die
D. Choosing a card from a fair deck

Answers

Winning an election for class president is not a technique that can be used to randomly assign students to a treatment group. The reason for this not being random is because it can easily be preferential and everybody could vote for a specific person.

B is not a technique for randomly assigning students to a treatment group.

Using long division what is the quotient of this expression

3x^4-2x^3-x-4
———————-
X^2+2

Answers

3x² - 2x -6 is quotient in polynomial after long division .

What in mathematics is a polynomial?

Sums of terms of the form kxn, where k is any number and n is a positive integer, make up polynomials. For instance, the polynomial 3x+2x-5. a description of polynomials. The concepts degree, standard form, monomial, binomial, and trinomial are all covered in this video.A polynomial is a mathematical expression that solely uses the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. It is made up of indeterminates (also known as variables) and coefficients. x2 4x + 7 is an illustration of a polynomial with a single indeterminate x.

[tex]\frac{3x^{4} - 2x^{3} - x - 4 }{x^{2} + 2}[/tex]  

after long division we get quotient -  3x² - 2x -6 .

Divide using long division: standard [tex]3x^{2} + \frac{3x + 8 }{x^{2} + 2} - 2x - 6[/tex]

quotient - 3x² - 2x -6

remainder - 3x + 8

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Answer:

see image

Step-by-step explanation:

Plato/Edmentum

Unknown Numbers
Consider the following problem.
One number is 3 less than 6 times a second number.
Their sum is 46. Find the numbers
If × represents the second number, which equation is
correct for solving this problem?

Answers

Step-by-step explanation:

y is the second number. This means we can define it as the following equations where x is the second number:

y=6x-3

y+x=46

we have a system of equations, let's move all x to the right side

y=6x-3

y=46-x

this means that 6x-3=46-x

6x+x=46+3

7x=49

x=7

now that we know x we can calculate the y through one of the equations above:

y=39

What is 9 divided 2.43

Answers

answer : 3.70

explanation: 9 divided by 2.43. To divide decimal numbers we need to remove the decimal point.

(URGENT) Lines a & m are parallel. Using the diagram below, what is the degree measure of angle 3?
Enter the numerical answer only. Example, if the answer is 12 degrees, only enter 12.

Answers

The value of angle 3 is 127 degrees.

How to find angles formed by parallel lines?

Parallel lines are those lines that are equidistant from each other and never meet.

Parallel lines cut by a transversal, forms different angle relationship like alternate angles, corresponding angles, etc.

The line a and m are parallel lines.

The parallel lines are cut by a transversal y.

The angles formed are 1, 2, 3, 4, 5, 6, 7, 127 degrees etc.

This angles are related by alternate rule or corresponding rule.

Therefore,

∠3 is an alternate angle to 127 degrees.

Hence, alternate angles are congruent.

Therefore,

∠3 = 127 degrees.

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What is the reciprocal of -2/3
A. -3/2
B. -2/3
C. 1/3
D. 1/2​

Answers

The reciprocal of -2/3 is 3/2
I guess it’s A

Suppose the average yearly salary of an individual whose final degree is a​ master's is ​$40 thousand less than twice that of an individual whose final degree is a​ bachelor's. Combined, two people with each of these educational attainments earn ​$113 thousand. Find the average yearly salary of an individual with each of these final degrees.

Answers

In linear equation 109333.2 dollars is the average yearly salary of an individual with each of these final degrees .

What is a linear equation ?

There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.

let x be the salary of individual with bachelor degree

Then the average salary of individual with Masters degree is:

(2x-40000)

the combined of two salaries is 130000:

x+(2x-40000)=130000

3x-40000=130000

3x=130000+40000

x=170000/3

x = 56,666.66

x= 56,666.6  dollars ( the average salary of bachelor degree)

the average salary of Masters degree = 2x - 40000

2(56666.6)-40000 = 109333.2 dollars

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Evaluate if k=3

K^2 + 5 =

Answers

Answer:

k2+5=?

3²+5=?

9+5=14......

Juliana is taking out an $8,700, 3-year loan with an APR of 2.31%. What will be the monthly payment for this loan? Round to the nearest cent.

Answers

Answer: $250.37

Step-by-step explanation: no clue teacher told me because she doesn't know

If f(x) = 4x² -3 and g(x) = x+1, find (f - g)(x)

Answers

The value of (f - g)(x) = 4x² - x - 4.

Function - A function is a relationship or expression involving one or more variables.  It has a set of input and outputs.  Each input has only one output.  The function is the description of how the inputs relate to the output.

We have been given that -

f(x) = 4x² - 3

g(x) = x + 1

Find out  (f - g)(x) = ?

(f - g)(x) = 4x² - 3 - (x + 1)

(f - g)(x) = 4x² - 3 - x - 1

Output of

(f - g)(x) = 4x² - x - 4

Hence , for the given function f(x) = 4x² - 3 and g(x) = x + 1 the relationship  of (f - g)(x) is 4x² - x - 4.

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A parachutist's rate during a free fall reaches 70 meters per second. What is this rate in feet per second? At this rate, how many feet will the parachutist fall during 2 seconds of free fall? In your computations, assume that 1 meter is equal to 3.3 feet. Do not round your answers.

Answers

The rate of feet per second is 231 ft/sec and parachutists will fall 462 ft in 2 seconds.

What do we mean by speed?The definition of speed is The rate at which an object's position changes in any direction. Speed is defined as the ratio of distance traveled to time spent traveling. Because it has only one direction and no magnitude, speed is a scalar quantity.

So, let's assume that y70m/s is the terminal velocity.

As 1 meter = 3.3 feetThen, 70 meters = 70 × 3.3 = 231 ft/secParachutist will fall at what rate in 2 seconds: 462 ft/sec

Therefore, the rate of feet per second is 231 ft/sec and parachutists will fall 462 ft in 2 seconds.

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If Ef bisects CD, CG = 9x - 4, GD = 2x + 31, EF = 4x - 1, and GF = 7, find EG

Answers

The value of EG is 12

In geometry, the term line segment is defined as the part of a line segment used to join two points in a plane. When  segments join the midpoints of  two sides of a triangle, the segments are parallel to the other side and represent one half of it.

Given equations of line are  :

CG = 9x -4

GD = 2x+31

EF = 4x-1

GF = 7

We are asked to find the length of EG. We can start by analyzing the bisector, CD. Since the segment is the bisector, So CG = GD.

CG = GD

9x -4 = 2x+31

7x = 35

x = 5

Analyzing EF

EF = EG + GF

4x-1 = EG +7

20 - 1 -7 = EG

EG = 12

The value of EG is 12

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Given the function: f(x) = 2x³-3/2x, find f(-4).

Answers

I hope it helps, when you have to do this kind of problems just plug the -4 into any x’s and you’ll get your answer

Order the square root of 70, negative 8.2 repeating, twenty five thirds, and negative eight and four sevenths from least to greatest. negative eight and four sevenths, negative 8.2 repeating, square root of 70, twenty five thirds negative eight and four sevenths, negative 8.2 repeating, twenty five thirds, square root of 70 negative 8.2 repeating, negative eight and four sevenths, twenty five thirds, square root of 70 negative 8.2 repeating, negative eight and four sevenths, square root of 70, twenty five thirds

Answers

Answer:

[tex]\textsf{B)} \quad -8 \frac{4}{7} \quad -8.\.{2} \quad \dfrac{25}{3} \quad \sqrt{70}[/tex]

Step-by-step explanation:

Given:

[tex]\sqrt{70} \quad -8.\.{2} \quad \dfrac{25}{3} \quad -8 \frac{4}{7}[/tex]

Convert the given numbers into decimals:

[tex]\sqrt{70}=8.366...[/tex]

[tex]-8.\.{2} =-8.222...[/tex]

[tex]\dfrac{25}{3}=8.333...[/tex]

[tex]-8 \frac{4}{7}=-8.571...[/tex]

Order the decimals from least to greatest:

[tex]-8.571... < -8.222... < 8.333... < 8.366...[/tex]

Therefore:

[tex]-8 \frac{4}{7} < -8.\.{2} < \dfrac{25}{3} < \sqrt{70}[/tex]

Answer:

negative eight and four sevenths, negative 8.2 repeating, twenty five thirds, square root of 70

4.30. An internet service provider has two connection lines for its customers. Eighty percent of
customers are connected through Line I, and twenty percent are connected through Line II.
Line I has a Gamma connection time with parameters a = 3 and λ = 2 min-¹. Line II has
a Uniform(a, b) connection time with parameters a = 20 sec and b = 50 sec. Compute the
probability that it takes a randomly selected customer more than 30 seconds to connect to
the internet.

Answers

Using the uniform distribution, there is a 0.6667 = 66.67% probability that it takes a randomly selected customer more than 30 seconds to connect to the internet.

What is the uniform probability distribution?

It is a distribution with two bounds, given by a and b, in which each possible outcome is equally as likely.

The probability of finding a value above x is:

[tex]P(X > x) = \frac{b - x}{b - a}[/tex]

For this problem, the connection time has parameters a = 20 sec and b = 50 sec, as stated in the problem.

The probability that it takes a randomly selected customer more than 30 seconds to connect to is P(X > 30).

Hence, applying the formula, with the bounds, we have that:

P(X > 30) = (50 - 30)/(50 - 20) = 2/3 = 0.6667.

The measure above is the desired probability.

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PLEASE HELP FIND FOR X QUICK PLEASE!!!!

Answers

Greetings from Brasil...

Assuming that the line segments CE and FH are parallel, then:

Angle W

Here we have Opposite Angles by Vertex, so

W = 14

According to the attached figure, the angle W is also corresponding, so in the triangle CEG one of the angles will be 14°

Angle Z

The sum of the interior angles of a triangle is 180°, so for triangle CEG:

Z + W + 78 = 180

Z + 14 + 78 = 180

Z = 88

Angle X

Z and 4X are complementary angles, then

Z + 4X = 180

88 + 4X = 180

X = 23


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Jafari and adana are giving their dog a bath. The label on the shampoo bottle recommends a ratio of 1/6 of shampoo to water. what percent of the bath needs to be shampoo?

Answers

The percent of the bath needs to be shampoo will be 16.67%.

How to calculate the percentage?

From the information, Jafari and adana are giving their dog a bath and the label on the shampoo bottle recommends a ratio of 1/6 of shampoo to water

The percent of the bath needs to be shampoo will be:

= 1/6 × 100

= 16.67%

Therefore, the percent of the bath needs to be shampoo will be 16.67%.

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Which number line shows the solution the inequality

Answers

The correct answer would be c explanation:
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