Please help!!!!! Can show work I’m stuck !!!!!!!!!

Average Speed = Total Distance / Total Time

Total Distance = 400m + 600m = 1,000m

Total Time = 35s

Average Speed = 1,000/35 = 28.57 m/s (approx.)

Average Speed in two decimal places is 28.57 m/s (approx.)

Answers:

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Explanation:

Part (1) Finding the mean

Add up the values to get

80 + 90 + 10 + 75 + 90 + 95 + 99 = 539

Then divide by 7 because there are 7 values in this list

539/7 = 77

The mean is 77

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Part (2) Finding the median

First we'll need to sort the values from smallest to largest

{80, 90, 10, 75, 90, 95, 99}

will sort to

{10, 75, 80, 90, 90, 95, 99}

The middle most value is 90 since we have three items below it {10,75,80} and three items above it {90, 95, 99}.

The median is 90

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Part (3) Which is the better measure of center?

Nearly all of the values are clustered from 75 to 99. The value 10 is an outlier since it's far from the main cluster. There are more technical processes used to find out if 10 is actually an outlier or not, but we won't deal with that right now.

The much smaller outlier pulls on the mean to make it smaller than what it should be. The mean 77 is too small to represent what the center should be. The median is not affected by outliers, which is why it's used in applications such as home prices.

The median 90 is the better measure of center.

Answer:

I tried c and i got it wrong

Step-by-step explanation:

its not c

Answer:

you dont

Step-by-step explanation:

Answer:

sing to her and say- "but age aint nothing but a number" and you'll start dating real quick

Answer: 272%

Step-by-step explanation: To write 136/50 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

136/50 * 100 = 2.72 * 100 = 272%

And finally we have:

136/50 as a percent equals 272%

Answer:

Step-by-step explanation:

Umm idk-

The answer is 9.

We have been given that dimensions of original photo are 4 inches by 6 inches. We want the photo on the poster to be of dimensions 3 feet by 4 1/2 feet.            

First of all we will convert dimensions of poster from feet to inches.

Now, let us compare sides of our original photo with corresponding sides of poster.

Now, let us compare the second pair of corresponding sides.

We have seen that sides of poster are 9 times the sides of our original photo, therefore, the scale factor of this dilation is 9.      

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. However, the available details is enough to work out a solution.

Considering the first even number: 2

In this case, n = 1

The sum of the first even term is 2.

Represent the sum as a product:

[tex]2 = 1 * 2[/tex]

Considering the first two even numbers: 2 and 4

In this case, n = 2

The sum of the first two even terms is 6

Represent the sum as a product:

[tex]6 = 2 * 3[/tex]

Considering the first three even numbers: 2, 4 and 6

In this case, n = 3

The sum of the first two even terms is 12

Represent the sum as a product:

[tex]12 = 3 * 4[/tex]

Notice the pattern from n = 1 to 3

[tex]2 = 1 * 2[/tex] --- n = 1

[tex]6 = 2 * 3[/tex] --- n = 2

[tex]12 = 3 * 4[/tex] --- n = 3

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

It follows that, the sum when represented as a product is: [tex]n * (n + 1)[/tex]

So, the sum of the first 52 even terms would be:

[tex]52 * (52 + 1)[/tex]

Where n = 52

[tex]52 * (52 + 1) = 52 * 53[/tex]

[tex]52 * (52 + 1) = 2756[/tex]

Hence, the sum of the first 52 even terms is 52 * 53 or 2756

Answer:

x=-16

Step-by-step explanation:

hope this helps!

Answer: A or B

Step-by-step explanation:

Answer:

The amount of $1000 principal is needed to have $3000 after 5 years.

Step-by-step explanation:

As the interest formula is

[tex]I=Prt[/tex]

Where

Substituting the following values in the interest formula and solve for P

I=$3000

r = 6% = 6/100 = [tex]0.06[/tex]

t = 5

so the equation becomes

[tex]I=Prt[/tex]

[tex]3000=P\left(0.06\right)\left(5\right)[/tex]

switch both sides

[tex]P\left(0.06\right)\left(5\right)=3000[/tex]

[tex]P\left(0.3\right)=3000[/tex]

[tex]P=10000[/tex] $

Therefore, the amount of $1000 principal is needed to have $3000 after 5 years.

Answer:

im not 100% sure but i think 1.5

Step-by-step explanation:

sry if not

Answer:

-3

___

 2

Step-by-step explanation:

9-(4-1)^2

______

8-2^2

9-(16-1)

______

8-4

9-15

_____

4

-6

___

4

=-3

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2

Answer:

1490 is the correct answer

Step-by-step explanation:

2070- 580= 1490

Answer:

0.07

Step-by-step explanation:

Answer:

30:1 (30 words to 1 minute)

1:2 (1 word to 2 secs)

30:60 (30 words to 60 seconds)

Step-by-step explanation:

Can i get brainliest?

Answer:

9.200 × [tex]10^{-3}[/tex]  

I hope this helps!

See attachment for math work and answer.

40/ 1/4

40 x 4 = 160

160 is greater than 1/4

Any number that is greater than 0.25 can be your answer

Hope this helps :)

Answer:

[tex]m=4[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Pick any 2 points from the chart.

Point (-5, -7)

Point (-4, -4)

Step 2: Find slope m

Answer:

asxas

Step-by-step explanation:

Answer:

Step-by-step explanation:

Water Street intersects 25th Street and 28th Street at right angles.

Highway 47 is parallel to 28th Street.

GiveN:

What to do?

Step-wise-Step Explanation:

If wall Street intersects 25th Street and 28th Street at right angle then they will Parallel (||) to each other. Because,

Now Highway 47 is parallel to 28th Street. It means 25th Street is also parallel to Highway 47 because,

Thus, They are Highway 47 and 25th Street are parallel to each other. (Answer)

Answer:

y - 3 = -1/2(x + 2)

General Formulas and Concepts:

Pre-Algebra

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Point-Slope Form: y - y₁ = m(x - x₁)  

Step-by-step explanation:

Step 1: Define

Point (-2, 3)

Point (6, -1)

Step 2: Find slope m

Step 3: Write linear equation

Point-Slope Form:   y - 3 = -1/2(x + 2)

Answer:

y = -(1/2)x+2

Step-by-step explanation:

Answer:

-16 3/28

Step-by-step explanation:

sowwy if wrong owo

1. multiply

-2 3/4 * 5 6/7 = -11/4 * 41/7 = -451/28

2. simplify

-451/28 = -16 3/28

Answer: [tex]\frac{4}{5}[/tex]

Step-by-step explanation:

10 pens - 2 pens = 8 pens

Write 8 of 10 as a fraction.

You get [tex]\frac{8}{10}[/tex], right?

Now, simplify 8/10.

You get 4/5.

Answer:

I hope this helps

Step-by-step explanation:

use the distribution process first and then combine like terms

Answer:

The answer is A.

Step-by-step explanation:

The equation y=mx+b is shown where m is slope and m=-2 and b is the y-intercept, which b=1 (0,1) is the y intercept.

Answer:

4 minutes per question

Step-by-step explanation:

3 hours = 180 mins

180/45 = 4

4 minutes per question

Answer:

an average of 4 minutes on each

Step-by-step explanation:

Answer:

Coupon

Step-by-step explanation:

C O U P O N

Answer:

coupon

Step-by-step explanation:

Answer:

Movie 3 starts at 4:15 pm

Step-by-step explanation:

11:00 am + 2 hours 30 minutes + 2 hours 30 minutes + 15 minutes

11: 00 am + 5 hours + 15 minutes = 4:00 pm + 15 minutes

Movie 3 starts at 4:15 pm

3√2/(√3 - √2) . (√3 - √2)/(√3 - √2)

3√2(√3 - √2)/(3 - 2)

3√2(√3 - √2)

3√6 - 6

3(√6 - 2)

Answer: 3(√6 - 2)