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3 years ago

How do I solve this? It says solve each right angle and then to round answers to the nearest tenth.

Mathematics

1 answer:

mariarad [96]3 years ago

7 0

Answer:

19.2

Step-by-step explanation:

Add 12 squared to 15 squared(144+225)

Square root the answer( $\sqrt{369}$ )

Round to the nearest tenth(19.209)

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Not sure but you can figure it out.

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3 years ago

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Multiply: (2x2 − 5x)(4x2 − 12x + 10)

11Alexandr11 [23.1K]

(2x^2-5x)(4x^2-12x+10) = <span>8x^4 - 44x^3 + 80x^2 - 50x

So, the answer is option C.</span>

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4 years ago

Ramon has a certain number of nickels and quarters in his pocket. Choose the function which shows that the number of nickels, n,

IgorLugansk [536]

Answer:

B.0.05n+0.25q=1.1

Step-by-step explanation:

5 cents as a decimal is 0.05 and n represents the nickles

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3 years ago

Is my solution correct?

poizon [28]

Answer:

The area of the shaded sector is $51.2\pi \ units^{2}$

Step-by-step explanation:

I assume that the problem is

Find the area of the shaded sector of the circle with radius equal to 16 units

step 1

Find the value of x

we know that

$8x+2x=360\°$ -----> by complete circle

$10x=360\°$

$x=36\°$

The central angle of the shaded sector is 2x

$2(36\°)=72\°$

step 2

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=16\ units$

substitute

$A=\pi (16)^{2}$

$A=256\pi\ units^{2}$

step 3

Find the area of the shaded sector

we know that

A central angle of 360 degrees subtends an area of circle equal to $256\pi\ units^{2}$

by proportion

Find the area of the shaded sector by a central angle of 72 degrees

$\frac{256\pi}{360}=\frac{x}{72} \\ \\ x=256\pi *(72)/360\\ \\x=51.2\pi \ units^{2}$

4 0

4 years ago

A friend rewrote the expression 5(x+2)as 5x+2. Wrote a few sentences to your friend explaining the error. Then, rewrite the expr

Salsk061 [2.6K]

Answer:

5x+2

Step-by-step explanation:

Ok so the expression 5(x+2) is not 5x+2 because you have to use the distributive property. So with that being said:

5(x+2)=5 times x and 5 times 2

so the realest answer is 5x+10 instead of 5x+2

7 0

3 years ago

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