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miv72 [106K]
3 years ago
7

Factor completely and then place the factors in the proper location on the grid. x2 + 13 x + 36

Mathematics
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

The factored form of this would be (x + 4)(x + 9)

Step-by-step explanation:

In order to determine the numbers in the parenthesis, we need to find numbers that multiply to the constant (36) and add up to the middle term (13). In order to do that, we list the factors of the constant and look for those that add up to 13.

1, 36

2, 18

3, 12

4, 9

6, 6

As you can see, 4 and 9 are the only pair that satisfy the stipulations. So we place them in a parenthesis with x's and express as the following.

(x + 4)(x + 9)

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If three pounds of coffee costs $22.56, what is the cost of 1
NeX [460]

Answer:

$7.52 = 7 dollars and 52 cents.

Step-by-step explanation:

Given that three pounds of coffee = $22.56

1 pound of coffee = $22.56/3

Thus, we would have:

\frac{22.56}{3} = 7.52.

A pound of coffee = $7.52

$7.52 = 7 dollars and 52 cents.

8 0
3 years ago
Logs are stacked in a pile. The top row has 15 logs and the bottom row has 24 logs. How many logs are there in the stack?
ziro4ka [17]
There are two ways you can do this. You can use the longer way:
15+16+17+18+19+20+21+22+23+24 = 195 (starting from the top row, which has 15 logs, up until the bottom row, which has 24 logs, on condition that each second row has one log more than the previous one)

You can also use the formula (where n is the number of rows)
x= (n(first term+last term))/2
x= (10(15+24))/2
x= (10*39)/2
x=390/2
x=195

Either way, there are 195 logs in the stack.
8 0
3 years ago
Read 2 more answers
3. What is the slope of the graph shown below?
konstantin123 [22]

Answer:

The slope is -2 and initial value is -1

5 0
3 years ago
Solve 2-3x = -x - 8
Vera_Pavlovna [14]
2-3x=-x-8
-3x=-x-10
-2x=-10
X=5
3 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAIN
LenaWriter [7]

(3 3/4)(1 1/8)

=15/4(1 1/8)

=15/4(9/8)

=135/32

=4 7/32

4 0
3 years ago
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