3 years ago

Find area of the triangle ABC with angle A = 71.273 degree, length b = 12.6 and length

Mathematics

1 answer:

mylen [45]3 years ago

6 0

Answer:

im not sure if this is right or not but you can try it if you want

Step-by-step explanation:

A. 75.8 square units B. 76.4 square units C. 76.8 square units D. 79.4 square units

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How do you divide a negative number and a positive number? My problem is -19÷13.

cestrela7 [59]

When you divide a negative and a positive, you don't have to worry about the negative that much. Just divide like normal, and then add the negative at the end. However, if you divide a negative by a negative, it's double negative, and therefore positive. So in the case of -19 / 13, the answer would be negative.

Hope this helps! :)

4 0

3 years ago

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Keith left his house, rode his bike 3 miles along one road, took a 90 degree turn and rode 3 miles to the local swimming pool. I

11Alexandr11 [23.1K]

Answer:

1.8 miles

Step-by-step explanation:

For this case we can model the problem as a rectangle triangle.

We know:

Length of the sides of the triangle

We want to know:

Length of the hypotenuse

Using the Pythagorean theorem we have:

$d=\sqrt{3^{2} +3^{2} }\\d = \sqrt{2(3^2)} \\d = 3\sqrt{2} \\d = 4.2 miles$

Then, the distance that he would have saved if he travels directly is:

$3 + 3 - 4.2 = 1.8 miles$

Answer:

he would have saved:

1.8 miles

3 0

3 years ago

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What is the surface area of this prism? A. 3240 m2 B. 6480 m2 C. 1656 m2 D. 3312 m2

NeX [460]

Well take the bottom and in this case its 18 and 30 so 18 x 30 = 540 then you do the two 15's times 30 and thats 450 times the 2 is 900 so 540+900+216 = so thats 1656 m 2 :)))))))))))

6 0

3 years ago

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James practiced piano for 48 minutes. Alisa practiced for 5 times as long as James. How many minutes did Alisa practice? How man

wariber [46]

48(5)=n
when n= the amount of time that Alisa practiced the piano.
Alisa practiced for 240 minutes.

48+240= t
Where t stands for total minutes altogether.
In total, they practiced 288 minutes

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3 years ago

Use the power-reducing formulas to rewrite each of the expressions in terms of the first power of the cosine. Sin^4cos^4

Katen [24]

Answer:

1/128 * (3 - 4cos2x + cos4x)

Step-by-step explanation:

See attachment for steps

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3 years ago