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DIA [1.3K]
3 years ago
6

What is x divided by 8 greater than equal to 9

Mathematics
1 answer:
Stolb23 [73]3 years ago
4 0

Answer:

x≥72

Step-by-step explanation:

Put into an equation then solve.

x/8≥9

x8    x8

x≥72

Hope that helped!

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Coefficient of x^2 in expansion of (x+2)^5
iVinArrow [24]
The x² term will be C(5,2)x²·2³ = 80x².

The coefficient is 80.

_____
C(n, k) = n!/(k!·(n-k)!)
C(5, 2) = 5·4/(2·1) = 10
8 0
3 years ago
What is the measure of each angle in the circle?<br><br> 30°<br> 90°<br> 72°<br> 60°
klio [65]

Answer:

72°

Step-by-step explanation:

The circle is divided into 5 parts.

A circle measures 360°.

360/5 = 72°

hope this helps!! p.s. i really need brainliest :)

6 0
2 years ago
Read 2 more answers
25 percent of 60 students in a class failed in the test. how many students failed the test​
Alik [6]

Answer:

15 students

Step-by-step explanation:

25% = 1/4, so you can just do 1/4 of 60 or 1/4 * 60. 60/4 = 15 students.

5 0
3 years ago
Read 2 more answers
Determine a and k so the given points are on the graph of the function.
Margarita [4]

Answer:

  y = -7(x +1)² +35

Step-by-step explanation:

The given quadratic equation has two parameters you are asked to find. When you fill in the given point values, the result is two linear equations in the two unknown parameters. You can solve these equations in any of the usual ways.

__

<h3>equation for point (1, 7)</h3>

  y = a(x +1)² +k

  7 = a(1 +1)² +k

  7 = 4a +k

<h3>equation for point (2, -28)</h3>

  -28 = a(2 +1)² +k

  -28 = 9a +k

<h3>solution</h3>

The first equation can be subtracted from the second equation to eliminate the k variable. (This is solving by <em>elimination</em>.)

  (-28) -(7) = (9a +k) -(4a +k)

  -35 = 5a . . . . . . . . simplify

  -7 = a . . . . . . . . divide by 5

Using the first equation, we can find k.

  7 -4a = k . . . . . subtract 4a

  7 -4(-7) = k . . . . substitute for 'a'

  35 = k

The parameter values are a = -7, and k = 35. The quadratic equation is ...

  y = -7(x +1)² +35

3 0
2 years ago
Purple paint:mix 2 quarts of red paint for every3quarts of blue paint. How many blue paint is needed to make 35 quarts of purple
Phoenix [80]

Answer: 21 quarts of blue paint

Step-by-step explanation: To make a batch of purple paint, it is necessary 2 quarts of red and 3 quarts of blue, resulting in 5 quarts of purple.

So, to make 35 quarts of purple:

5x = 35

x = 7

It is needed, in total, 7 quarts of purple.

As, the ratio is 2 quarts of red to 3 quarts of blue:

Blue: 7 x 3 = 21

For 35 quarts of purple paint, it's necessary 21 quarts of blue paint.

4 0
3 years ago
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