Help this is soooooo hard for me

Help This Is Soooooo Hard For Me

Answers

Answer 1

Answer: Choice C  

Mean = 37.1

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

Explanation:

Refer to the table below. The colum labeled "M" is the midpoint for each age interval. To find the midpoint, add up the endpoints and divide by 2. For example, the midpoint of 18 and 24 is (18+24)/2 = 42/2 = 21. Notice how the values of M are increasing by 7 each time.

The column labeled fM refers to multiplying the frequency f with the midpoint M. Example: fM = 6*21 = 126 in the first row.

Add up everything in the column labeled fM and you should get 1484. Divide this over the sum of the frequencies (40) and the mean is 1484/40 = 37.1

Help This Is Soooooo Hard For Me
Answer 2

Answer:

c is the right answer

Step-by-step explanation:

hope i helped


Related Questions

what is the value of the expression 4y²-7y-6 when y=5

Answers

4y^2-7y-6
16y-7y-6
80-35-6
45-6
39

Please help me on this question​

Answers

Answer:

V = £21,012.50

Step-by-step explanation:

Compound interest formula

[tex]\sf A=P(1+\frac{r}{n})^{nt}[/tex]

where:

A = final amountP = principalr = interest rate (in decimal form)n = number of times interest applied per time periodt = number of times periods elapsed

Given:

A = VP = £20,000r = 2.5% = 0.025n = 1t = 2

Substituting given values into the formula:

[tex]\sf \implies V=20000(1+\frac{0.025}{1})^{(1 \times 2)}[/tex]

[tex]\sf \implies V=21012.5[/tex]

Find the length of the third side. If necessary, round to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

Jimmy is playing a game at a state fair, where he is throwing a dart at a target. For each throw, Jimmy can choose to throw the dart at a rectangular target or at a circular target. To score a point during the game, Jimmy must hit the bulls-eye of the target that he chooses. So far, Jimmy has thrown the dart at the rectangular target 9 times, and he has thrown the dart at the circular target 11 times.

When Jimmy has thrown the dart at the rectangular target, he has missed the bulls-eye 6 times. When Jimmy has thrown the dart at the circular target, he has missed the bulls-eye 9 times.

Based on the information above, if Jimmy's goal is to score a point on his next throw, which target should he choose?

Answers

Using proportions, it is found that Jimmy should target the rectangular target, as he has hit a higher proportion of throws there.

What is a proportion?

A proportion is a fraction of a total amount.

In the rectangular target, he has hit it 3 out of 9 times, hence the proportion is:

pR = 3/9 = 0.3333.

In the circular target, he has hit it 2 out of 11 times, hence the proportion is:

pC = 2/11 = 0.1818.

Due to the higher proportion of hits, he should throw at the rectangular target.

More can be learned about proportions at https://brainly.com/question/24372153

How many solutions does the equation 4x 8 = − 2 − 2 5x have? two one zero infinitely many

Answers

The equation 4x + 8 = -2 - 2 + 5x has one solution

How to determine the number of solutions?

The equation is given as:

4x + 8 = -2 - 2 + 5x

Collect like terms

4x - 5x = -2 - 2 - 8

Evaluate the like terms

-x = -12

Divide both sides by -1

x = 12

The above means that the equation 4x + 8 = -2 - 2 + 5x has one solution

Read more about equation solutions at:

https://brainly.com/question/7784687

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Answer:

it does have one solution

Step-by-step explanation:


The probabilities by subject of on-time assignment submission and on-time arrival to class are given in the table. What is the chance
That the subject is physics if an assignment is submitted on time?
OA 82.396
ОВ.
88.596
Ос.
89.796
OD. insufficient data
ved.

Answers

D. insufficient data

We need to know the number of assignments in each class before we can tell the probability of interest.

__

If we assume the same number of assignments in each class, then 25.1% of on-time assignments were in physics. We note this is not an answer choice, further confirming we have insufficient data.

Which statement about the graph of y = 1/4(2/3)^x is true?

The graph crosses the y-axis at (0, 1/6)

The graph decreases from left to right.

The graph includes point (1, 1/4)

The graph has an asymptote at y = 1/4

Answers

Answer:

The graph decreases from left to right.

Step-by-step explanation:

ted collected 22 pounds of aluminum cans, how many ounces of aluminum cans did he collect?

Answers

Answer:

352 oz

Step-by-step explanation:

1 lb = 16 oz

22 * 16 = 352

5 people are evenly sharing 12 kilograms of apples.
How many kilograms of apples should each person get?
Choose 1 answer:
A. 5/12 kilograms of apples
B. 2 10/5 kilograms of apples
C. 12/5 kilograms of apples
D. 1 2/5 kilograms of apples

Answers

The answer is 5/12 kilograms of apples which is A

Answer:

C. 12/5 kilograms of apples

Step-by-step explanation:

If 5ppl =12kg of apples

then 1 person= ?kg of apples

If more less divides and if less more divides

Therefore

1×12

5

= 12

5

Divide. enter your solution as a mixed number.
6,132 ÷ 203 =

(enter all mixed numbers as x y/z.)

Answers

Answer: 30 6/29

Step-by-step explanation: 6132 \ 203 is 30 and 42/203. 42/203 simplified is 6/29

Given P(A) = 0.55, P(B) = 0.42 and P(AUB) = 0.639, find the value of
P(An B), rounding to the nearest thousandth, if necessary.

Answers

Answer:

The probability of A and B, denoted as P(A ∩ B) is equal to 0.331.

Step-by-step explanation:

Recall our formula for the probability of A or B:

P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

We are given are variables already, which we can once again define:

P(A) = 0.55P(B) = 0.42P(A ∪ B) = 0.639

To find P(A ∩ B), we start by plugging in the values into our formula:

0.639 = 0.55 + 0.42 - P(A ∩ B)

We can add the RHS of the equation:

0.639 = 0.97 - P(A ∩ B)

Subtracting 0.97 on both sides, we get closer to our answer:

-0.331 = -P(A ∩ B)

To obtain our final answer, we can simply just divide both sides by -1:

0.331 = P(A ∩ B)P(A ∩ B) = 0.331

Therefore, the probability of A and B is equal to 0.331.

Solve this inequality
2x2 – 15x < 27

Answers

the answer to this problem would be x>-23/15

Which expression is equivalent to √3+5/√3-5

Answers

The simplified form of the expression is [tex]\frac{14+5\sqrt{3}}{11}[/tex]

How to rationalize surd functions?

Given the surd function expressed as:

[tex]\frac{\sqrt{3} +5}{\sqrt{3} - 5 }[/tex]

Multiply by the conjugate of the denominator to have:
[tex]= \frac{\sqrt{3} +5}{\sqrt{3} - 5 } \times \frac{\sqrt{3} +5}{\sqrt{3} + 5 } \\=\frac{\sqrt{9}+5\sqrt{3}+5\sqrt{3}+25 }{3-25}[/tex]

Simplify the resulting expression
[tex]\\=\frac{3+10\sqrt{3}+25 }{-22}\\=\frac{28+10\sqrt{3}}{-22} \\= \frac{14+5\sqrt{3}}{11}[/tex]

Hence the simplified form of the expression is [tex]\frac{14+5\sqrt{3}}{11}[/tex]

Learn more on rationalization here: https://brainly.com/question/14261303

A taxi hurries 63 miles in 2 hours
5 minutes. What is its average speed in
miles per hour?

Answers

Answer:

30 .24 m/hr

Step-by-step explanation:

2 hours and 5 minutes  = 2  + 5/60  hours = 2 5/60 hrs

63 miles / (2  5/60) = 30.24 m/hr

Step-by-step explanation:

To find the average speed, we must know this formula :

[tex] \\ {\longrightarrow\sf \qquad{Average \: speed = \dfrac{Distance \: Travelled}{Total \: Time \: Taken}}} \\ \\ [/tex]

Also we know that, 2 hr 5 min = 2.083 hrs approximately so,

Now, substituting the given values in the formula :

[tex] \\ {\longrightarrow\sf \qquad{Average \: speed = \dfrac{63 \: miles}{2.083 \: hr}}} \\ \\ [/tex]

[tex] \\ {\longrightarrow\sf \qquad{Average \: speed = 30.24 \: mph}} \\ \\[/tex]

Therefore,

The average speed of the taxi is 30.24 mph

Graph y=|x-2|
ASAP I really need this please

Answers

Step-by-step explanation:

move the parent function to the right 2 times.

Answer:

see image

Step-by-step explanation:

An absolute value graph is a V-shaped graph(in yellow, see image) You can use "transformations of parent functions" to graph it (high school/college) OR use a table of values (middleschool/hs). The - 2 that's in the parenthesis with the x causes the graph to slide to the RIGHT 2 units. (shown in green) The green graph is what you are asking for.

If you aren't learning about translations (which means shift or slide and is a type of transformation) then you can just make a table of values. Pick several x's and put them in the equation and find out what y's go with them. Plot the points on the graph and connect. See image.

Use the functions and the scenario to solve the problem.

f(x)=1/2x+6
g(x)=x−3

Shiloh and Leanne are asked to evaluate f(x)−g(x).

Shiloh suggests f(x)−g(x)=(x−3)−(1/2x+6)=1/2x−9.

Leanne suggests f(x)−g(x)=(1/2x+6)−(x−3)=−1/2x+9.

Evaluate each student's answer.

Select two answers. Select the correct evaluation of Shiloh's work and the correct evaluation of Leanne's work

Answers

Answer:

Leanne is correct. It is important that g(x) is subtracted from f(x).

Shiloh is incorrect. She subtracted f(x) from g(x), and subtraction isn't commutative.

*Just took the test, got the answer correct!! Hope this helps!

Pls help pls help !!!!!!!

Answers

5/2(a+b) = 5/2a+2b

1/a+b + 5/2a+2b = 2/2a+2b + 5/2a+2b
[*I multiplied by 2 both numerator and denominator so the two fractions have the same denominator*]

= 7/2a+2b

there were 150 people in a parade last year. This year there are 20 people in the parade. What is the percent change of people in the parade from last year to this year?

Answers

Answer:

7.5

Step-by-step explanation:

Write each expression without the absolute value symbol.|14-(6-x)|

Answers

The answer is 2(7-3x) HAVE A GREAT DAY !!!

Is FGH ~ JKL? If so, identify the similarity postulate or theorem that applies.

Answers

Answer:

It is similar by AA

Step-by-step explanation:

AA stands for angle-angle. In similar figures, angles are congruent, and the sides are proportional. the corresponding angles are the same. Hope this helps!

PLEASE HELP I NEED IT NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

what is the problem ? you teacher gave you even the conversion rates in the question.

so, when 1 gallon = 3.79 liters, then how much is 4 gallons ?

4 gallons is 4 times 1 gallon. so, of course, we need to apply the same factor to the other side too.

4 gallons = 4×3.79 = 15.16 ≈ 15 liters

and e do the same for all the other table elements :

8 liters = 8×0.26 = 2.08 ≈ 2 gallons

12.5 liters = 12.5×0.26 = 3.25 ≈ 3 gallons

6 gallons = 6×3.79 = 22.74 liters ≈ 23 liters

Soft drinks sell for P8.50 and fruit juice sells for P11.00 each. On a certain day, the number of soft drinks sold was four times the number of fruit juice sold. How many soft drinks were sold if the total income was P900.00?

Answers

The number of soft drinks sold was 4 times the number of fruit juice -> On average, every 4 soft drinks sold, 1 fruit juice is.

-> Every P34.00 of soft drinks sold, P11.00 of fruit juice is.

So, the income is P45.00 everytime.

Since the total income is P900.00, the amount of 4 soft drinks and 1 fruit juice sold is 900 : 45 = 20 times

So, there were 20 x 4 = 80 soft drinks sold.

Recheck : 80 x 8.5 + 20 x 11 = 680 + 220 = 900.

Please help me with this please and thank you

Answers

Answer:

Nnnnnnnnnnnn

Step-by-step explanation:

L bozo

Can someone help? I don’t get this one

Answers

Answer:1.4*10^-9

Step-by-step explanation:

Answer:

1.4×10−x^-{9}

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10.

If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Hopefully this helps you!

- Matthew

A spinner has 12 equal-sized sections. Nine of the sections are red. a. What is the probability that the spinner will land on red? b. Use words to describe the probability. a. out of 12, or /4 or _% .​

Answers

Answer:

9out of 12, 3/4, 75%

Step-by-step explanation:

Red makes up 3 quarters of the spinner, or 9 parts out of 12.

Create equations to solve for f and g

Answers

Answer:

Step-by-step explanation:

Here are the first five terms of a quadratic sequence. 9 24 47 78 117 Find an expression, in terms of n, for the nth term of this sequence.

Answers

Answer:

4n^2+3n+2

Step-by-step explanation:

9 24 47 78 117

 15  23

     8

8/2 = 4

=4n^2

9-4 = 5 (the minus value come from 4n^2 where n is the position where 9 lays)

24-16 = 8

47-36 = 11

so plus 3 every time so 3n

4n^2+3n for the first value is 7 so you need an extra 2

4n^2+3n+2

The quadratic sequence is 4n² + 3n + 2.

What is a quadratic sequence?

The difference between words always varies by the same amount, which is a characteristic of quadratic number sequences. The "difference between the differences between the words in the sequence is always the same" as a result. The second difference is referred to as constant.

As per the given data:

The given sequence is a quadratic sequence.

The given terms are: 9 24 47 78 117

The difference between the first three consecutive terms:

9 24 47

15  23

Difference of difference:

    8

and 8/2 = 4

∴ The first term is 4n²

9-4 = 5 (the minus value come from 4n² where n is the position where 9 lays)

24-16 = 8

47-36 = 11

so plus 3 every time

∴ The second term to add is 3n

4n² + 3n for the first value is 7, so you need an extra 2

∴ The third term to add is 2

4n² + 3n + 2

Hence, the quadratic sequence is 4n² + 3n + 2

To learn more about a quadratic sequence, click
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What is the slope of the line whose equation is -2y = -4x + 5

Answers

Answer:

2

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    -2*y-(-4*x+5)=0

STEP 1:

Pulling out like terms

1.1     Pull out like factors :

  -2y + 4x - 5  =   -1 • (2y - 4x + 5)

Equation at the end of step 1:

STEP 2:

Equation of a Straight Line

2.1     Solve   -2y+4x-5  = 0

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  -2y+4x-5  = 0 and calculate its properties

Graph of a Straight Line :

 

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 5/-2 so this line "cuts" the y axis at y=-2.50000

 y-intercept = 5/-2  = -2.50000

Calculate the X-Intercept :

When y = 0 the value of x is 5/4 Our line therefore "cuts" the x axis at x= 1.25000

 x-intercept = 5/4  =  1.25000

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -2.500 and for x=2.000, the value of y is 1.500. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 1.500 - (-2.500) = 4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

    Slope     = 2

Geometric figure: Straight Line

 Slope = 2

 x-intercept = 5/4 = 1.25000

 y-intercept = 5/-2 = -2.50000

Answer:

2

Step-by-step explanation:

y=mx+b where m is the slope

to get y by itself you divide both sides by -2 resulting in

y= 2x+(-5/2)

2=m

the equation A = bh is used to calculate the area, A , of a parallelogram with base, b , and height, h . Calculate the area of a parallelogram with a base of 15 inches and a height of 9 inches

Answers

Answer:

135

Step-by-step explanation:

A = bh

A = 15 x 9

A = 135

You have $6.44 to spend on easter sweets You buy 1 chocolate bunny for $2.19 and 1 chocolate egg for $1.83. with the money left , which flower could you buy? the daisy costs $2.35 and the rose costs $2.55.

Answers

Answer:

DAISY

Step-by-step explanation:

6.44-2.19-1.83=2.42.

You can buy the DAISY

(in the nonstatistical term, you can tell that it could be the daisy because if you had 2.55 you could buy both)

Daisy

Step-by-step explanation:

$6.44 - $2.19 = $4.25 $4.25 - $1.83 = $2.42

You only have $2.42 left. Daisy cost $2.35 and Rose cost $2.55

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