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2 years ago

Find the area of the regular polygon

Mathematics

1 answer:

11Alexandr11 [23.1K]2 years ago

4 0

Answer:

AREA OF THE POLYGON

$7 \times \frac{1}{2} \times 4 \times 4.2 \\ 58.8 {inch}^{2}$

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Find the length of EF

Lisa [10]

Answer:

Step-by-step explanation:

1. First, we need to set up an equation to find the value of x and then the length of EF.

2. We know that DG is equal to 33, so we can add all the three sections it's cut into altogether to get 33. Therefore, we get an equation of: $3x - 28 + 3x - 30 + x = 33$

3. (Solving for x)

Step 1: Simplify both sides of the equation.

$3x - 28 + 3x - 30 + x = 33$
$(3x+3x+x) + (-28-30)=33$
$7x - 58 = 33$

Step 2: Add 58 to both sides.

$7x - 58 + 58 = 33 + 58$
$7x = 91$

Step 3: Divide both sides by 7.

$\frac{7x}{7} = \frac{91}{7}$
$x = 13$

4. Now that we know x is equal to 13, we can plug that value in for the expression 3x - 30.

$3(13)-30$
$39 - 30$
$9$

Therefore, the length of EF is 9.

7 0

3 years ago

Solve the quadratic equation by factoring. 9x^2+24x+20=4

const2013 [10]

D. -4/3

Let's solve your equation step-by-step.

9x2+24x+20=4

Step 1: Subtract 4 from both sides.

9x2+24x+20−4=4−4

9x2+24x+16=0

Step 2: Factor left side of equation.

(3x+4)(3x+4)=0

Step 3: Set factors equal to 0.

3x+4=0 or 3x+4=0

x= −4 /3

Hope This helps

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3 years ago

Ms. Edwards is redecorating her office. She has a choice of 6 colors of paint, 3 kinds of curtains, and 4 colors of carpet. How

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6 * 3 * 4 = 72 ways :)

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3 years ago

If five times the square of a certain positive number is

frutty [35]

Answer:

5 bud i think it this but i might be wrong

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2 years ago

Find the value of x .<br><br> x/4 = 15/20<br><br> x=

OLga [1]

Answer:

its 3

Step-by-step explanation:

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3 years ago

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