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3 years ago

What is the area of the trapezoid?

Mathematics

2 answers:

kkurt [141]3 years ago

8 0

Answer:

About 30.904 cm.

Step-by-step explanation:

The equation is A=1/2(a+b)h

Where A=22.2

B=8.52

C= 9.86

Vilka [71]3 years ago

8 0

The answer should probably be 152.45 cm^2

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I need help on this problem

tankabanditka [31]

when we divide a fraction, we flip the denomonator and numerator and then multiply by the fraction. So flipped 1/3 become 3.By multiplying 8 by 3 gave the same answer as in the 1st problem.

The answers in both problems are the same because of the rule of the division of the fraction

7 0

3 years ago

Write an equation of the cosine function with amplitude pi/2 and period 3

juin [17]

Answer:

$y = \frac{\pi}{2}cos(\frac{2\pi}{3}x)$

Step-by-step explanation:

Given

$Amplitude = \frac{\pi}{2}$

$Period = 3$

Required

Write the equivalent cosine function

The general formula is:

$y = acos(bx)$

Where

$amplitude = |a|$

$period = \frac{2\pi}{b}$

Substitute $\frac{\pi}{2}$ for amplitude in $amplitude = |a|$

$|a| = \frac{\pi}{2}$

$a = \frac{\pi}{2}$

Substitute 3 for period in $period = \frac{2\pi}{b}$

$\frac{2\pi}{b} = 3$

Multiply both sides by b

$2\pi = 3b$

Divide through by 3

$b = \frac{2\pi}{3}$

Hence;

$y = acos(bx)$ becomes

$y = \frac{\pi}{2}cos(\frac{2\pi}{3}x)$

5 0

3 years ago

Graph the function and identify the domain and range y= -4 x^2

attashe74 [19]

Step-by-step explanation:

y=-4x²

if x=0 x=2

y=0 y=16

x=1 x=-2

y=4×1² y=-16

y=4

x=-1

y=-4

5 0

3 years ago

Matt has a block. He uses one of the flat surfaces of the block to trace a triangle. What type of solid figure is Matt's block?

Katen [24]

Triangular prism OR Pyramid

6 0

3 years ago

Read 2 more answers

Find the perimeter of the following shape (show all work and box your final answer):

Paraphin [41]

<h3>Answer: 11x + 6y + 11</h3>

=========================================

Work Shown:

To find the perimeter, we add up all the exterior side lengths.

P = perimeter

P = (side1) + (side2) + (side 3)

P = (2y-3x-3) + (12+5x+7y) + (9x-3y+2)

P = (-3x+5x+9x) + (2y+7y-3y) + (-3+12+2)

P = 11x + 6y + 11

5 0

3 years ago