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3 years ago

If a trapezoid with 9.00-cm and 12.00-cm bases has an area of 68.25 cm2, what is its height to the nearest hundredth?

Mathematics

1 answer:

Lapatulllka [165]3 years ago

4 0

I hope this helps you

68,25=(9+12).h/2

2.68,25=21.h

136,5/21=h

h=6,5

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Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

sergeinik [125]

$Question$

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

Answer:

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2 years ago

The length of the hypotenuse of a right triangle is 13 m. The length of one leg in 5 cm. find the length of the other leg

VikaD [51]

other leg = 12 cm

using Pythagoras' identity with x as the side to be found, then

x = √(13² - 5² ) = √(169 - 25 ) =√144 = 12

5 0

3 years ago

The table below shows the participation in the town soccer league during its first five seasons.

emmasim [6.3K]

Answer:

C. $y=6.75x+81.25$

Step-by-step explanation:

We are given that

In I year, number of participants=88

In V year, number of participants=115

We have to find the equation of the trend line that can be generated by using the data from years 1 and 5.

Rate of change of participants = $\frac{change\;in;participants}{change\;in\;time}=\frac{115-88}{5-1}$

Rate of change of participants,m=6.75

Point-slope form: $y-y_1=m(x-x_1)$

Where m=Rate of change of participants per year

$x_1=5,y_1=115$

By using the formula

Substitute the values then we get

$y-115=6.75(x-5)$

$y-115=6.75x-33.75$

$y=6.75x-33.75+115$

$y=6.75x+81.25$

Hence, option C is true.

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3 years ago

What is the approximate volume of a cone with a height of 6 mm and radius of 18 mm?

Rudik [331]

Answer:

v = 2034.72 mm³

Step-by-step explanation:

radius = 18mm

height = 6mm

pi = 3.14

v = πr²h/3

v = 3.14 * (18mm)² x 6mm/3

v = 3.14 * 324mm² x 2mm

v = 2034.72 mm³

6 0

3 years ago

Which of the following expressions has a value of 3? Select all that apply. -6 ÷ -2 4 - (-1) (-1)(-3) (-2) - 1 15 ÷ -5 4 + 1

Luden [163]

1. -6 ÷ -2 = 3
(Negative divided by a Negative = Positive)

3.(-1)(-3) = 3
(Same rule as division)

As far as im concerned the rest came out to be negative answers or not even 3

6 0

3 years ago

Read 2 more answers