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MrRa [10]
3 years ago
15

Write as a monomial in standard form (3a)2

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
6 0

Answer:

I believe it's  6a

kvv77 [185]3 years ago
3 0

Answer:

9a^2

Step-by-step explanation:

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45 is 20% of what number?
nadezda [96]
x-\ number\\\\
20\%x=45\\\\
\frac{20}{100}x=45\\\\
0.2x=45\ \ \ | divide\ by\ 0.2\\\\
x=225\\\\
45\ is\ 20\% \ of\ 225.
5 0
3 years ago
Urgent! Will award brainliest...<br> Factor the following polynomial:<br> <img src="https://tex.z-dn.net/?f=3a%5E%7B2%7D-21a%2B3
umka2103 [35]

Answer:

3 (a-2) (a-5)

Step-by-step explanation:

The first step is to find the GCF. Here, it's 3.

3(a^2-7a+10)

Then, you factor the polynomial in the parenthesis.

To find the factors, you will need to find 2 numbers that add to -7, and multiply to 10. -2 and -5 add to -7 and multiply to 10. Now, replace -7a with the factors.

a^2-2a-5a+10

This of this polynomial as 2 problems.

a^2-2a        -5a+10

Then, factor again.

a^2-2a        -5a+10

a(a-2)       -5(a-5)

Then, you keep the factors in parenthesis, and combine the numbers on the outside.

(a-2)(a-5)(a-5)

Since, there are 2 of the same factor, you only need one.

(a-2)(a-5)

BUT REMEMBER!! In the very beginning, we had a 3 that we took out, we STILL need to add that to the final answer. The <u>final answer</u> is:

3 (a-2) (a-5)

7 0
3 years ago
Rounded to the nearest whole number, how many 2ft by 2ft squares will fit into circle that has a diameter of 20 feet?
seraphim [82]

Answer:

79

Step-by-step explanation:

The area of a circle is pi*radius^2; the radius of this circle is 10 (20/2=10). Our area is then 100pi or ~314 square feet. A 2x2 square takes up 4 feet. 314/4 is equal to 78.5, or when rounded, 79

3 0
3 years ago
Round 496.042 to the nearest hundredth. Enter your answer in the response box.<br> HElppp
cluponka [151]
124.59 I think not sure
4 0
3 years ago
The area of a rectangle with base b and height h is bh. A rectangular sports goal is 10ft wide and 8 ft high. Find the area of t
bogdanovich [222]

A = bh

A = 10(5)

A = 50 ft2

8 0
3 years ago
Read 2 more answers
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