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Brrunno [24]
3 years ago
10

9+(6w+3w) how do I do this it is to hardThe expression (9+6w)+3w

Mathematics
1 answer:
Mama L [17]3 years ago
6 0

Answer: 9w+9

Step-by-step explanation:

First combine like terms: 6w+3w

You can't combine 9 and 9w so that would be your answer.

Then if it calls for it, use the commutitive property to move 9w before 9.

Hope this helps!

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Using the factorised trinomial <img src="https://tex.z-dn.net/?f=%28n-2%29%284n-7%29" id="TexFormula1" title="(n-2)(4n-7)" alt="
andrew-mc [135]
4n² - 15n + 14<span> is always the product of two numbers, for it to be prime number, one of these factors must be either 1 or -1.

Case n - 2 = 1
That would be n = 3
Then </span>4n² - 15n + 14<span> = 5 , which is prime.

Case n - 2 = -1
That would be n = 1
Then </span>4n<span>² - 15n + 14 = 3, which is also prime.

Case 4n - 7 = 1
That would be n = 2 and that makes other factor (n-2) zero so it's not prime

Case 4n-7 = -1
That would be n = 3/2 which is not integer, so </span>4n<span>² - 15n + 14 will not be interger.

For any other n values, </span>4n<span>² - 15n + 14 will be composite number since it is product of two factors.

Therefore we are left with n = 1 and n = 3; only two values of n.</span>
5 0
3 years ago
Find m∠X. Put the answer below.<br> m∠X =
Vika [28.1K]

Answer: 30 deg

Step-by-step explanation:

This is an example of a 30-60-90 triangle because the proportions of the sides are 1-2-sqrt(3). Therefore m<X = 30 degrees.

3 0
2 years ago
5 POINTS, 5 STARS, BRAINLIEST, AND THANKS
Aneli [31]
No cause it’s a curved line so it’s not direct
6 0
2 years ago
There are 75 students performing in the holiday concert. Of the students, 30 are boys. What percent of the students are boys?
viva [34]

Answer:

Total students = 75

Boys = 30

<h3>Percentage</h3>

\sf \frac{30}{75}  \times 100\% \\   \sf=  \frac{10}{25}  \times 100\% \\  \sf =  \boxed{ \bold{ \red{40\%}}}

Hope it helps!

8 0
3 years ago
I NEED HELP WITH ME MATH
ruslelena [56]

ok so lets start of with the fact that the whole thing is 21 units.

So we do 21-9=12 so then we now know that the rectangle is 12 so then we do 12*8 units which is= 96 . Now the triangles. so the first one we know that its 8*3 and times it by 1/2 because two triangles is equal to a rectangle so the first triangle is 12 and now the second. its 9-3= 6 then its 6*8*1/2 which is equal to 24 so now the final answer is

96+12+24 which is equal to 132 so i'm guessing it 132 square units

5 0
3 years ago
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