3 years ago

Let x represent the number. Write the English phrase as an algebraic expression. Twice the sum of a number and 20

1 answer:

3 0

Twice = multiply by 2
Sum = addition = +

Now that you know those things, all you have to do is plug the numbers in:

2(x + 20)

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Circle K has a diameter of 10 centimeters and a major arc RS is intercepted by a central angle of 190°. Find the length of major

drek231 [11]

Answer:

16.6

Step-by-step explanation:

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3 years ago

Hat is the 68th term of sequence -8.6,-7.2,-5.8,-4.4,

Umnica [9.8K]

First find the law
8.6-1.4n
so, 64th is 8.6-1.4x64
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3 years ago

Daniel wants to buy cookies for her friends. The area of a cookie is 113.04 in2. What is the circumference of the cookie?

prisoha [69]

Answer:

The circumference of the cookie is 37.68 inches.

Step-by-step explanation:

We have,

The area of a cookie is 113.04 square inches.

It is circular in shape. The area of circle is given by :

$A=\pi r^2$

r is radius of circle

$r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{113.04}{3.14}} \\\\r=6\ \text{inch}$

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$C=2\pi r\\\\C=2\times 3.14\times 6\\\\C=37.68\ \text{inch}$

So, the circumference of the cookie is 37.68 inches.

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3 years ago

Evaluate the expression into simplest form

sattari [20]

Work out the top subtraction first:

3/9 - 8/12

= 1/3 - 2/3

= 1/3

and the bottom part:-

3/8 * 2 = 6/8 = 3/4

so now we divide -1/3 by 3/4

= -1/3 * 4/3 = -4/9

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4 years ago

Find the amount of decrease if 68 is decreased by 15%

olya-2409 [2.1K]

I think 10.2 when I use calculater

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3 years ago