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Amanda [17]
2 years ago
5

Help please !!! i don’t understand

Mathematics
1 answer:
lana66690 [7]2 years ago
6 0

Answer:

The correct answer is C.

2x² + 7x - 30 is equal to (2x−5)(x+6)

Step-by-step explanation:

2x² + 7x - 30

= 2x² − 5x + 12x − 30

= (2x−5)(x+6)

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A jury pool consists of 50 potential jurors and how many ways can a jury of 12 be selected
bija089 [108]

Solution:

we are given that

A jury pool consists of 50 potential jurors.

Wee have been asked to find the number of ways can a jury of 12 be selected.

As we know from the concept of combination that r person can be selected out of n in ncr ways. where

n_C_r=\frac{n!}{r!(n-r)!}

Now substitute the values we get

{50}_C_{12}=\frac{50!}{12!(50-12)!}\\
\\
{50}_C_{12}=\frac{50!}{12!38!}\\
\\
{50}_C_{12}=121399651100\\

Hence the required number of ways is 121399651100

5 0
3 years ago
How to write (0,8] as an inequality
larisa86 [58]
Answer: 0 \ \textless \  x \le 8

What is given to you is interval notation. We have the interval start at 0 and end at 8. The value 0 is not included in the interval as indicated by the parenthesis. So we go with a "less than" sign (instead of a "less than or equal to" sign)

The value 8 is included since a square bracket is used here. The use of "or equal to" is needed to make sure the endpoint 8 is included.

So x can be any number between 0 and 8. It can't be 0 but it can be 8. 
3 0
3 years ago
How many 30 degree angles are in a 150 degree angle? Use repeated subtraction to solve.
sashaice [31]

150 minus 30 equals 120 but i did 150/30 and got 5

6 0
3 years ago
Solve 1235 divided 100
bagirrra123 [75]
1235 / 100              

See 1235 as 1235.0, since we are dividing by 100, we have two zeros, so we move the decimal point in 1235.0 two places to the left.

12.35

8 0
3 years ago
Read 2 more answers
Which graph represents the function below? (The first pic is the function, the others are the graph choices given)
Bumek [7]

Answer:

The First Graph

Step-by-step explanation:

The -x line is present in both the first and last graph.

The x + 6 is present in the first and second graph.

The slope is increasing before -3

The slope past -3 is decreasing.

3 0
3 years ago
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