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2 years ago

Number 14 only. Please I really need help on this.

Mathematics

1 answer:

Zigmanuir [339]2 years ago

4 0

rate of change is the distance divided by minute or whatever measurment your using that changes

-79.9/-18/8=4.25

130.9 is the total change of elevation and 19.125 is the total time of the dive so

130.9/19.125 =6.844repeating

I hope this helps you atleast understand rate of change.

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What is the length of CD? In this diagram, ABC ~ EDC.

Alex777 [14]

Hey there!

Answer:

CD = 3.

Step-by-step explanation:

Since the triangles are similar, we can set up a ratio to determine the other side-lengths:

$\frac{12-x}{18} =\frac{x}{6}$

Cross multiply:

$6(12-x) = 18x$

Distribute the '6':

$72-6x = 18x$

Combine like terms and simplify:

$72 = 24x$

$x = 3$

Therefore, the length of CD is 3.

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2 years ago

Please Help Me! I will give brainly!!

DerKrebs [107]

Answer:

5 1/10 meters

Step-by-step explanation:

18 4/5 can be changed to 18 8/10 so

18 8/10 - 13 7/10 = 5 1/10 meters

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2 years ago

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Find the Area. Simplify your answer.

Vaselesa [24]

Answer:

Area = $9x^2$ square units

Step-by-step explanation:

Key skills needed: Area of a parallelogram

1) This shape is a parallelogram, and the way to find the area of a parallelogram is:

$A = bh$

A = area

b = base (the side at the bottom

h = the height ( the length that runs from one side to another and makes a right angle)

2) The base (b) would be 3x. The height (h) would also be 3x

3) This means A = $3x(3x)$

3 times 3 is 9 --> and x times x is $x^2$

Therefore the area is --> $9x^2$

Hope you understood and have a nice day!! :D

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2 years ago

Every day for 5 days Jack and Jill went walking. Each day Jack walked 4/5 of a mile and Jill walked 2/3 of a mile. At the end of

DanielleElmas [232]

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\\\\[-0.35em]
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2 years ago

A salesperson sold 20 cars last month. Seven of the cars sold were red. What percent of the cars sold were red?

amm1812

So you would just have to divide 20/7 to get the percentage of it.

The answer would be 2.85%.

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2 years ago