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4 years ago

Find the area of the trapezoid

Mathematics

2 answers:

Serjik [45]4 years ago

7 0

A = 1/2(b1+b2)h
A = 1/2(20+25)(15)
A = 1/2(45)(15)
A = 337.5

The answer I got was B. 337.5 ft^2

weqwewe [10]4 years ago

4 0

A = 1/2(b1+b2)h
A = 1/2(20+25)(15)
A = 1/2(45)(15)
A = 337.5

answer
B. 337.5 ft^2

You might be interested in

Find the exact value of cot 330° in simplest form with a rational denominator.

Hoochie [10]

Answer:

$\cot 330^{\circ} = -\sqrt{3}$

Step-by-step explanation:

The cotangent function can be rewritten by trigonometric relations, that is:

$\cot 330^{\circ} = \frac{1}{\tan 330^{\circ}} = \frac{\cos 330^{\circ}}{\sin 330^{\circ}}$ (1)

By taking approach the periodicity properties of the cosine and sine function (both functions have a period of 360°), we use the following equivalencies:

$\sin 330^{\circ} = \sin (-30^{\circ}) = -\sin 30^{\circ}$ (2)

$\cos 330^{\circ} = \cos (-30^{\circ}) = \cos 30^{\circ}$ (3)

By (2) and (3) in (1), we have following expression:

$\cot 330^{\circ} = -\frac{\cos 30^{\circ}}{\sin 30^{\circ}}$

If we know that $\sin 30^{\circ} = \frac{1}{2}$ and $\cos 30^{\circ} = \frac{\sqrt{3}}{2}$ , then the result of the trigonometric expression is:

$\cot 330^{\circ} = -\frac{\frac{\sqrt{3}}{2} }{\frac{1}{2} }$

$\cot 330^{\circ} = -\sqrt{3}$

6 0

3 years ago

1A ribbon is 3 2/3 yards long. Mae needs to cut the ribbon into pieces that are 2/3 yard long. Use the model to find the number

Yanka [14]

Answer:

swag

Step-by-step explanation:

swag

8 0

3 years ago

The food pantry distributes 10-oz bags of rice. If three 5-lb are donate to the pantry, how many 10-ounce bags can be made?

kumpel [21]

You'd have to multiply 16 by 15.

Three 5 pound bags= 15

1 pound=16 ounces.

16x15=240

240 divided by 10=24

The answer is 24 bags of 10-ounces.

5 0

4 years ago

The following data set represents the scores (out of 100 points) for students in Mr.Long's biology class on the first test.94 78

Butoxors [25]

Given:

The following data set represents the scores (out of 100 points).

94 78 79 97 95 84 80

82 94 92 88 88 99 72

We will find the mean of the data as follows:

$mean=\frac{sum\text{ }of\text{ }the\text{ }dat\text{ }set}{numer\text{ }of\text{ }the\text{ }data\text{ }set}$

We will find the sum of the scores:

$sum=94+78+79+97+95+84+80+82+94+92+88+88+99+72=1222$

And the number of the dataset = 14

So, the mean will be as follows:

$mean=\frac{1222}{14}=87.2857$

Rounding to the nearest tenth

So, the answer will be: The mean = 87.3

4 0

2 years ago

Find the slope in the line 3-4

kati45 [8]

Answer:

-0.5, either ⅙ or ⅓

Step-by-step explanation:

slope = rise / run

3) slope = (6 - 7) / (3 - 1)

slope = -1 / 2

slope = -0.5

ur mouse is blocking 4 (I'll do 2 scenarios):

4) slope = (-4 - -5) / (2 - -4)

slope = 1 / 6

I will leave it in fractional form

4) slope = (-4 - -6) / (2 - -4)

slope = 2 / 6

slope = 1/3

slope = 0.33

4 0

2 years ago