What did I do wrong?

What Did I Do Wrong?

Answers

Answer 1

YOU DID NOTHING WRONG ACCORDING TO WHAT YOU WROTE

[tex]2d = f - e \\ \frac{2d}{2} = \frac{f}{2} - \frac{e}{2} \\ d = \frac{f}{2} - \frac{e}{2} [/tex]

RATHER MAYBE IT'S BECAUSE THEY WANT YOU TO WRITE IT IN THIS FORM.

TRY IT THIS WAY


Related Questions

The area of Eh Kri's rectangular backyard, in square feet, can be found using the expression 2(4x + 5y). Use the distributive property to write an equivalent expression for the area of Eh Kri's backyard.

Answers

The area of a rectangular backyard = 2(4x - 5y)

The algebraic expression has a equivalent expression as = 2 x 4x + 2 x 5y

= 8x + 10y

someone please help me!!!

Answers

Im going to answer for the first one.So angles 1 and 2 are corresponding angles and so they are equal because line k and line p and parellel

The midpoint of AB is M(0, -7). If the coordinates of A are (-2,-6), what arethe coordinates of B?Answer:Submit AnswerPASSA

Answers

Explanation:

The coordinates are given below are

[tex]\begin{gathered} A(-2,-6) \\ M(0,-7) \\ B=(x,y) \end{gathered}[/tex]

The image is given below as

To calculate the coordinate of A,we will use the formula below

[tex]M=\frac{(x_1+x_2}{2},\frac{y_1+y_1}{2})[/tex]

By substituting the values, we will have

[tex]\begin{gathered} M=\frac{x_1+x_2}{2},\frac{y_{1}+y_{1}}{2} \\ (0,-7)=\frac{-2+x)}{2},(\frac{-6+y}{2}) \\ \frac{-2+x}{2}=0,\frac{6+y}{2}=-7 \\ -2+x=0,6+y=-14 \\ x=2,y=-14+6 \\ x=2,y=-8 \end{gathered}[/tex]

Hence,

The coordinate of B will be

[tex]B=(2,-8)[/tex]

in the diagram below , the measure of arc SQ is 160 degrees and the measure of arc PR is 102 degrees . find the value of x .

Answers

Given:

The measure of angle of arrc SQ is 160°.

The measure of angle of arc PR is 102°.

The objective is to find the measure of angle x.

Since, the angle x is away from te center of the circle.

Then, the formula to find the value of angle x is,

[tex]x=\frac{PR+SQ}{2}[/tex]

Now, substitute the given values in the above formula.

[tex]\begin{gathered} x=\frac{102+160}{2} \\ =\frac{262}{2} \\ =131\degree \end{gathered}[/tex]

Hence, the value of x is 131°.

Jaclyn has $120 saved and earns $40 each month in allowance. Pedro has $180 saved and earns $20 a month in allowance.
If they both save their entire allowances, how long will it take before Jaclyn and Pedro have saved the same amount of money?
Enter your answer in the box

Answers

Answer:

3 months

Step-by-step explanation:

120 + 40m = 180 + 20m

Collect like terms

40m - 20m = 180 - 120

20m = 60

Divide

m = 60/20

m = 3

It will take them 3 months before Jaclyn and Pedro have saved the same amount of money.

Ben walked for 8 1/2 minutes and
covered
3/4 of a mile.

Answers

The unit rate of Ben is 8.5 minutes.

What is Unit Rate?An item's unit rate is its price for one of them. This is expressed as a ratio with a one as the denominator. For instance, if you covered 70 yards in 10 seconds, you covered 7 yards on average every second. Seven yards in one second and 70 yards in ten seconds are both ratios, but only one of them is a unit rate.A ratio that compares two amounts of DIFFERENT types of UNITS is called a rate. When a rate is expressed as a fraction, the denominator is 1 unit. Divide the numerator and denominator of the rate by the denominator to represent a rate as a unit rate.Unit rates may seem difficult to understand, but it explains a specific unit of measurement based on a rate of time (usually).

For this problem, we are looking for how many miles Ben walked per minute — so the goal is miles per minute

We know Ben walked a total of 3/4 of a mile (or .75 miles) and it took him 8 1/2 minutes to do it (or 8.5 minutes)Since we want miles per minute we need to divide the miles by the minutes.

So, calculate:

.75 miles.    =  0.088 miles per minute8.5 minutes

Therefore, the unit rate for Ben is 8.5 minutes.

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Complete question:

Ben walked 3/4 of a mile in 8 1/2 minutes. Find the Unit Rate.

Door prizes for entrants in a young inventors competition are $100, $50, $25 and $10. In how many ways can the door prizes be awarded if there are 23 entrants?.

Answers

The total number of ways the prizes are awarded is 8855.

The prizes for entrants in a young inventors competition are $100, $50, $25, and $10.

Which are of total 4 types of prizes.

If there are 23 entrants in the competition the prizes can be awarded in the following ways by using Combinations.

Total number of ways =  ²³C₄

                                    = [tex]\frac{23!}{4! * (23 - 4)!}[/tex]

                                    = 8855

The total number of ways the prizes are awarded is 8855.

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a rope passing through a capstan on a dock is attached to a boat offshore. the rope is pulled in at a constant rate of 6 ft/s and the capstan is 5 ft vertically above the water. how fast is the boat traveling when it is 12 ft from the dock?

Answers

Answer:The boat is traveling at a rate of 3 ft/s.

Step-by-step explanation:



The headlights of an automobile are set such that the beam drops 2.00 in. for each 28.0 ft in front of the car. What is the angle between the beam and the
Road?

Answers

The most appropriate choice for trigonometry will be given by -

Angle between beam and road is 0.33°

What is Trigonometry?

Trigonometry shows the relationship between sides and angles of a right angled triangle.

There are six trigonometrical functions. They are [tex]sin\theta, cos\theta, tan\theta, cos\theta, sec\theta, cosec\theta[/tex]

[tex]sin\theta = \frac{perpendicular}{hypotenuse}\\\\cos\theta = \frac{base}{hypotenuse}\\\\tan\theta = \frac{perpendicular}{base}\\\\cot\theta = \frac{base}{perpendicular}\\\\sec\theta = \frac{hypotenuse}{base}\\\\cosec\theta = \frac{hypotenuse}{perpendicular}\\[/tex]

Trigonometry is a very important tool in mathematics.

Here,

The headlights of an automobile are set such that the beam drops 2.00 in. for each 28.0 ft in front of the car.

According to the figure attached here, 2.0 inch forms the height of the triangle and 28.0 ft forms the base of the triangle

Let the angle be [tex]\theta[/tex]. Now trigonometry is applied here

[tex]tan\theta = \frac{\frac{2}{12}}{28}\\tan\theta = \frac{1}{6 \times 28}\\tan\theta = \frac{1}{168}\\\theta = tan^{-1}\frac{1}{168}\\\theta = 0.33^{\circ}[/tex]

Angle between beam and road is 0.33°

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Help me with this please

Answers

Answer: say can't help

Step-by-step explanation:

NEEED HELP PLSSSS . Find x in triangles Geometry.

Answers

Answer:

10) x = 76,12) x = 8, Perimeter = 77 units

=========================

Question 10

The triangle is isosceles as marked.

The two opposite angles of equal sides are equal, one of them is x and the angle in between them is 28°.

Use angle sum of the triangle:

2x + 28 = 1802x = 152x = 76

Question 12

Same as previous question, we have an isosceles triangle. Equal sides are:

3x + 5 = 5x - 115x - 3x = 5 + 112x = 16x = 8

Find the perimeter by substituting the value of x:

P = 3*8 + 5 + 5*8 - 11 + 2*8 + 3 = 77 units

The size of a monitor is determined by the length of its diagonal. You want to buy a 19 inch monitor with a height of 11inches. What is the width of this monitor? Express your answer to the nearest tenth.XSubmINTL1217K

Answers

In this problem the diagonal of the Tv is 19 and the hight is 11 so we can use the pythagorical theorem to find the width (w) so:

[tex]19^2=11^2+w^2[/tex]

and we solve for w so

[tex]\begin{gathered} w^2=19^2-11^2 \\ w=\sqrt[]{361-121} \\ w=\sqrt[]{240} \\ w=15.5 \end{gathered}[/tex]

Cole is investing the relationship between the number of hours he tutors and the amount he is paid in dollars.He made the graph shown to model the relationshipChoose the incorrect statement based on the data shown in Cole’s graph.A) If Cole tutors 5 hours,he will be paid $40B) If Cole tutors 3 hours he will be paid $24C) If Cole tutors 7 hours he will be paid $64D) If Cole tutors 4 hours he will be paid $32

Answers

Verify each statement

A) If Cole tutors 5 hours,he will be paid $40------>



B) If Cole tutors 3 hours he will be paid $24



C) If Cole tutors 7 hours he will be paid $64



D) If Cole tutors 4 hours he will be paid $32

If α and β are the roots of the equation ax2+bx+c=0,αβ=4ax2+bx+c=0,αβ=4 and a,b,,c are in A. P then α+β=

Answers

Considering the sum and the product of the roots of the quadratic equation, it is found that the numeric value of the expression is given as follows:

[tex]\alpha + \beta = -2.5[/tex]

What are the sum and the product of the roots of a quadratic equation?

A quadratic equation is defined as follows:

[tex]y = ax^2 + bx + c, a \neq 0[/tex]

The roots of the equation are given as follows:

[tex]\alpha, \beta[/tex]

The sum of the roots is given as follows:

[tex]\alpha + \beta = -\frac{b}{a}[/tex]

The product of the roots is given as follows:

[tex]\alpha\beta = \frac{c}{a}[/tex]

In the context of this problem, the product is of 4, as [tex]\alpha\beta = 4[/tex] hence:

c/a = 4

c = 4a.

The coefficients are in an arithmetic progression, hence:

b = a + d. (d is the common difference of the sequence).c = a + 2d.

We have that c = 4a, hence:

4a = a + 2d

2d = 3a

d = 1.5a.

Hence coefficient b is calculated as follows:

b = a + d = a + 1.5a = 2.5a.

Then the sum of the roots is given as follows:

[tex]\alpha + \beta = -\frac{b}{a} = -\frac{2.5a}{a} = -2.5[/tex]

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Stanley runs, swims, and bikes every day. During these workouts, he runs at 9 mph, bikes at 16 mph, and swims at 2.5 mph. Yesterday, he ran for half an hour longer than he swam, and his biking time was twice his running time. How long did Stanley run, swim, and bike yesterday if the total distance he covered was 64 miles?

(a

If Stanley swam for t hours yesterday, what was his running time?

Answers

Answer:He biked for 3 hours (48 miles)

He ran for 1.5 hours (13.5 miles)

He swam for 1 hour (2.5 miles)

He covered 62 miles in 5.5 hours of activity

Step-by-step explanation:

Answer:

1.5h

Step-by-step explanation:

When Elizabeth left her phone in her house this morning

Answers

Can you give more context so we can better assist you?

Simplify: 15.4 + 3.02

Answers

Answer:

18.42

Explanation:

15+3=18

0.4+0.02=0.42

18+0.42=18.42

Sean weighs 10 lb more than twice Brad’s weight. If Brad gains 10 lb, together they will weigh 230 lb. How much does each weight now?

Answers

Using equations the weight of both Sean and Brad is 156 lbs and 73 lbs.

What do we mean by equations?The equals sign is a symbol used in mathematical formulas to denote the equality of two expressions.An equation is a mathematical statement that contains the symbol "equal to" between two expressions with identical values.as in 3x + 5 = 15, for example.There are many different types of equations, including linear, quadratic, cubic, and others.The three primary forms of linear equations are point-slope, standard, and slope-intercept.

So, the weight of Sean and Brad.

Let, Brad, be 'x'.Then Sean be '2x + 10'

So, the equation will become:

x + 2x + 10 = 230

Now, solve this equation for 'x' as follows:

x + 2x + 10 = 2303x = 230 - 103x = 220x = 220/3x = 73.33

Rounding off: 73 lbs

Then,

Brad weights ⇒ 73 lbsSean weights ⇒ 2(73) + 10 = 156 lbs

Therefore, using equations the weight of both Sean and Brad is 156 lbs and 73 lbs.

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find the missing fraction 1/2+ blank=7/8

Answers

To solve this problem we change the structure from

1/2 + ? = 7/8

to

7/8 - 1/2 = ?

Now we need to subtract the fractions and find the difference. To do this, make the denominators (the bottom numbers on the fractions) the same.

1/2 = 4/8

then subtracts the numerator

7/8 - 4/8 = 3/8

there is your answer... 3/8

What is the average rate of change of the function x increases from -3 to 5

Answers

The average rate of change when x increases from -3 to 5 is given as follows:

r = (f(5) - f(-3))/8.

What is the average rate of change of a function?

The average rate of change of a function is given by the change in the output divided by the change in the input. Hence, over an interval [a,b], the average rate of change is given by the fraction presented as follows:

[tex]r = \frac{f(b) - f(a)}{b - a}[/tex]

In the context of this problem, the input x increases by -3 to 5, hence the change in the input is given as follows:

b - a = 5 - (-3) = 5 + 3 = 8.

The change in the output is given as follows:

f(b) - f(a).

(the problem is incomplete hence the answer is given in general terms).

Then the average rate of change of the function when x increases from -3 to 5 is given as follows:

r = (f(5) - f(-3))/8.

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what is the advantage of reducing process variation, thereby causing process control limits to be at a greater number of standard deviations from the mean? reducing the process standard deviation causes a - select your answer - in the number of defects.

Answers

A low standard deviation implies that the data exists grouped around the mean, whereas a large standard deviation indicates that the data exists  more dispersed.

What is meant by standard deviation?

The term "standard deviation" (or "σ") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data exists grouped around the mean, whereas a large standard deviation indicates that the data exists  more dispersed.

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.

Because it aids in comprehending measurements when the data is scattered, standard deviation is significant. The standard deviation of the data will be higher the more evenly dispersed the data is.

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Your mom Paid $8 for 10 Granny Smithapples and bought 15 Golden Delicious at60 cents an apple. What is her average costper apple?

Answers

First, let's find the total cost of all the apples:

[tex]8+(0.6\cdot15)=17[/tex]

Now, we divide this by the total amount of apples bought. In our case, we know that there were 10 Granny Smith apples and 15 Golden Delicious, for a total of 25 apples.

[tex]\frac{17}{25}\rightarrow0.68[/tex]

Therfore, we can conclude that the average cost per apple was $0.68

Which graph shows the line y-4-2(x+1)?

Answers

If you did provide multiple choice graphs, then I can’t see them because I’m on mobile. But the graph should look similar to what I gave you.

(Just for extra information;
slope: 2
Y-intercept: (0,6)

X | Y
——
0 | 6
1 | 8

Please help this is urgent your effort is appreciated

Answers

Answer:

3

Step-by-step explanation:

The baseball diamond at a playground is a square with sides that measure 80 feet. About how long would a straight line be from home plate to second base? Round your answer to the nearest tenth.

160 feet
113.1 feet
80 feet
12,800 feet

Answers

If the baseball diamond at a playground is a square with sides that measure 80 feet. About how long would a straight line be from home plate to second base is: B.113.1 feet.

Determining the distance

Given data

Sides measure in feet = 80 feet.

Since the  diagonal tend to forms the hypotenuse of a right triangle with both sides of 80 feet

Hence,

Using the Pythagoreans theorem to determine the distance

(80)² + (80)² = x²

6400 + 6400 = x²

x² = 12,800

x = √ 12,800

x = 113.1 feet

Therefore the correct option is B.

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Find the measure of

Answers

Answer: ∠BDG = 50°

Step-by-step explanation:

    We know that a straight line is equal to 180°, meaning that line CDF is 180°.

     Next, we know that angle CDB, angle BDG, and angle GDF should all add up to be 180°, since we know CDF is equal to 180°.

     Lastly, with all this information in mind, we will set up an equation and solve.

130° + BDG = 180°

∠BDG = 50°

I think you just need to add the total of the 2 Angeles and subtract that from 180

Please help me out with this!

Answers

Answer:

10

Step-by-step explanation:

I am not absolutely sure but i think that is correct

CAN Someone pleasde help me !!!!!

Answers

Answer: It will take 3.5-4 months

Step-by-step explanation:

4.74 do you own a tablet? a study20 conducted in june 2015 examines ownership of tablet computers by us adults. a random sample of 959 people were surveyed, and we are told that 197 of the 455 men own a tablet and 235 of the 504 women own a tablet. we want to test whether the survey results provide evidence of a difference in the proportion owning a tablet between men and women. state the null and alternative hypotheses, and define the parameters. give the notation and value of the sample statistic. in the sample, which group has higher tablet ownership: men or women? use statkey or other technology to find the p-value.

Answers

Null hypothesis, [tex]H_{0}[/tex] P.1 = P2 (The proportion of tablets owned by men and women are equal.)

Alternative hypothesis,[tex]H_{0}[/tex]  P1[tex]\neq[/tex]P2 (The proportion of tablets owned by men and women are not equal.)

Sample proportion for men who own tablets  ≈0.433

Sample proportion for women who own tablets ≈0.466

p value of the test  is 0.3320.

Test whether the survey results provide evidence of a difference in the proportion owning a tablet between men and women.

Let p, be the proportion of all men who own tablets and p, be the proportion of all women who own tablets.

Null hypothesis, [tex]H_{0}[/tex] P.1 = P2 (The proportion of tablets owned by men and women are equal.)

Alternative hypothesis,[tex]H_{0}[/tex]  P1[tex]\neq[/tex]P2 (The proportion of tablets owned by men and women are not equal.)

The notations for the sample statistic are  p p1 p2

Pooled proportion p = [tex]\frac{x_{1}+x_{2} }{n_{1}+n_{2} }[/tex]= 197+235/455+504

                                               ≈ 0.45

Sample proportion for men who own tablets,

                               p1 = [tex]\frac{x_{1} }{n_{1} }[/tex]= 197/455

                                           ≈0.433

Sample proportion for women who own tablets,

                              p2 = [tex]\frac{x_{2} }{n_{2} }[/tex] = 235/506

                                          ≈0.466

Since p1<p2  women group has higher tablet ownership.

Sample statistic, p1-p2

                          = 0.433-0.466

p value of the test  is 0.3320.

What is Null hypothesis?

In mathematics, statistics deals with the study of surveys and reports of numerical data. For questions, we need to define a hypothesis. In general, there are two types of hypotheses. One is the null hypothesis and the other is the alternative hypothesis.

In probability and statistics, the null hypothesis is the general statement or default state that  zero  or nothing will happen. For example, there is no association between groups or no association between two measured events. Here, a hypothesis is generally assumed to be true until  other evidence is presented to disprove the hypothesis.

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Please help, i really need help

Answers

Answer: m<1 = 146 degrees, m<3 =146 degrees, m<4 = 34 degrees

Step-by-step explanation:

Since m<2 and m<4 are vertical angles, they will be equal to each other.

By using straight lines, we can easily find out that m<1 = 180-34 = 146

Since m<1 and m<3 are vertical angles, they are equal to each other.

Hope this helped :))

Angle 4: is 34 degrees since angle 2 and angle 4 are vertical angles and congruent (equal)
Angle 1: is 146 degrees. Since angle 4 and angle 1 are linear angles they are equal to 180. So subtract 180 and 34 to get 146
Angle 3: is 146 because angles 1 and 3 are vertical and congruent.
Hope this helps :)
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