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3 years ago

Pls help :))))))))) uhhhhhhhhh

Mathematics

1 answer:

Deffense [45]3 years ago

8 0

The answers are 3 and -13

You need to plug 3 and -5 into x

By doing this, you get :

12 - 3^2 and

12 - (-5)^2

those expressions equal

12 - 9

12 - 25

So you get

-13

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What is the area of the trapezoid?

Maslowich

<h3>Given Information :</h3>

Length of parallel sides = 60 ft and 40 ft
Height of the trapezoid = 30 ft

<h3>To calculate :</h3>

Area of the trapezoid.

<h3>Calculation :</h3>

As we know that,

$\bigstar \: \boxed{\sf {Area_{(Trapezium)} = \dfrac{1}{2} \times ( a + b) \times h}} \\$

a and b are length of parallel sides.
h denotes height.

Substituting values, we get :

$\longmapsto$ Area = $\sf \dfrac{1}{2}$ × ( 60 + 40 ) × 30 ft $\sf ^2$

$\longmapsto$ Area = $\sf \dfrac{1}{2}$ × 100 × 30 ft $\sf ^2$

$\longmapsto$ Area = 1 × 100 × 15 ft $\sf ^2$

$\longmapsto$ Area = 100 × 15 ft $\sf ^2$

$\longmapsto$ Area = 1500 ft $\sf ^2$

Therefore,

Area of the trapezoid is 1500 ft $\sf ^2$

6 0

3 years ago

Evaluate the expression: 3(a + b - 3) - 212a + b - 4) when a = 2 and b = 1

olga_2 [115]

Answer:

417

Step-by-step explanation:

3(2+1-3)-212*2+1-4=?

3-212*2+1-4=?

3-423+1-4=?

420+1-4=?

421-4=?

417

3 0

3 years ago

Subtracted 3 form 5 , then multiply by one forth

Novay_Z [31]

I think -0.5
3-5= -2
-2x.25= -0.5

5 0

3 years ago

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The table shows the total cost for different numbers of jackets.

guapka [62]

69.75

I hope this helped you out!!

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3 years ago

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Anit [1.1K]

Answer:

12.7311111111111 on and on

Step-by-step explanation:

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3 years ago

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Pls help :))))))))) uhhhhhhhhh​

Pls help :))))))))) uhhhhhhhhh