2 years ago

How do I answer part A?

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

7 0

You shade in the boxes

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an isosceles triangle has a vertex angle of 21.21 degrees. two sides of the triangle are each 17.91 ft long. whats the area of t

lubasha [3.4K]

Answer:

The area of triangle is $A=58.02\ ft^{2}$

Step-by-step explanation:

Let

B -----> the measure of the vertex angle of the isosceles triangle ABC

a and c -----> the two congruent sides of the isosceles triangle ABC

we know that

The area of a triangle applying the law of sines is equal to

$A=\frac{1}{2}(a)(c)sin(B)$

we have

$a=c=17.91\ ft$

$B=21.21\°$

substitute in the formula

$A=\frac{1}{2}(17.91)(17.91)sin(21.21\°)$

$A=58.02\ ft^{2}$

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3 years ago

Which of the following would be an acceptable first step in simplifying the expression

krek1111 [17]

Answer: A

Step-by-step explanation: Because it can be simplified twice.

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1 year ago

Dave and Busters charges 2.50 per game in the arcade plus a one-time entrance fee of $10.

AnnZ [28]

Answer:

C) y = 2.50x + 10

Step-by-step explanation:

Equation C is saying:

total cost = 2.50(number of games) + $10 entery fee

Hope this helps :)

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2 years ago

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Please answer this! I really suck at math and I need to do well.

Mariulka [41]

I believe it would be G.

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2 years ago

Find the value of x for which the lines a and b are parallel. answer : 23 20 2 19

Afina-wow [57]

Answer:

x=19

Step-by-step explanation:

These two angles are alternate interior angles and alternate interior angles are equal when the lines are parallel

148 = 7x+15

Subtract 15 from each side

148-15 =7x+15-15

133 = 7x

Divide by 7

133/7 = 7x/7

19 =x

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2 years ago