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2 years ago

14

An artist wants to create a painting on a semicircle canvas with a radius of 13 feet. He wants to surround the canvas with a pie

ce of string. The string costs $1.05 per foot. How much will the piece of string that he needs cost? Round your answer to the nearest dollar.

1 answer:

kodGreya [7K]2 years ago

5 0

Answer: I forgot i remember the answer in my head I forgot..

Step-by-step explanation:

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10 people meet, and each person shakes every other person's hand once. How many handshakes occurred?

Alex777 [14]

45 handshakes would take place! i've attached how i figured this out (pardon the scribbles)

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Which of the following is a correct interpretation of the expression -4 + 13−4+13minus, 4, plus, 13?

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Answer:

Step-by-step explanation:

-4 + 13 - 4 + 13 - 4 + 13

9 - 4 + 13 - 4 + 13

5 + 13 - 4 + 13

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-4x+3x=2<br> Solve linear equation

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Answer:
X = -2
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2 years ago

The area of triangle ABC is 3√2 square inches. Find the measure of the acute angle, A, if b = 9 meters and c = 2 meters.

taurus [48]

Answer:

$A\approx 28^{\circ}$

Step-by-step explanation:

Please find the attachment.

We have been given that area of triangle ABC is 3√2 square inches.

$\text{Area}=\frac{1}{2}\text{Base}\times \text{height}$

We know that area of triangle an be found using trigonometry as:

$\text{Area}=\frac{1}{2}\times c\times h$

$\text{sin}(A)=\frac{h}{9}\\h=9\cdot \text{sin}(A)$

$3\sqrt{2}=\frac{1}{2}\times 2\times 9\cdot \text{sin}(A)$

$3\sqrt{2}=9\cdot \text{sin}(A)$

$9\cdot \text{sin}(A)=3\sqrt{2}$

$\text{sin}(A)=\frac{3\sqrt{2}}{9}$

$\text{sin}(A)=\frac{\sqrt{2}}{3}$

Now, we will use inverse sine to find the value of angle A as:

$A=\text{sin}^{-1}(\frac{\sqrt{2}}{3})$

$A=28.1255057^{\circ}$

$A\approx 28^{\circ}$

Therefore, the measure of angle A is approximately 28 degrees.

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2 years ago

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Step-by-step explanation:

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you just have to use the slope formula

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