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2 years ago

Could anyone tell me the answer

Mathematics

1 answer:

erastova [34]2 years ago

4 0

Answer:

2x+3

Step-by-step explanation:

divide 6x + 9 by 3 using long polynomial division

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Sonia used $12.50 to buy a new journal. She has $34.25 left in her savings account. How much money did Sonia have before she bou

natali 33 [55]

X-12.50=34.25

Add 12.50 to both sides
X=46.75

3 0

3 years ago

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Which of the following expressions is equal to 5 - 2m?

zmey [24]

Answer:

the second one

Step-by-step explanation:

7 - (2m - 5)

3 0

3 years ago

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The opening of the tunnel can be modeled by the graph of the equation y=-0.18x^2+4.4x-12 where x and y are measured in feet. Fin

Molodets [167]

1. To find the vertex of a parabolla whose equation is written in the standard form, you must apply the following proccedure:

2. You have:

y=-0.18x²+4.4x-12

a=-0.18
b=4.4

3. You must apply the following formula:

x=-b/2a
x=-4.4/2(-0.18)
x=-4.4/-0.36
x=12.22

4. When you susbtitute x=12.22 into the equation y=-0.18x²+4.4x-12, you obtain:

y=-0.18x²+4.4x-12
y=-0.18(12.22)²+4.4(12.22)-12
 y=14.88 feet

5. The answer is: The maximum height of the tunnel is 14.88 feet

5 0

3 years ago

Evaluate the expression 5xy+ -2xy+y^2 when x=4 and y=-5

Mariulka [41]

Answer:

-35

Step-by-step explanation:

5(4)(-5) + -2(4)(-5) + (-5)²

= -100 + 40 + 25

= -35

7 0

3 years ago

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HELP ME HELP ME PLEASE

lina2011 [118]

Answer:

11126

Step-by-step explanation:

The mean of a set of data is another name for its average. It is the sum of the data, divided by the number of numbers in the sum.

If you use a calculator to help you with the computation of the addition or division, you may as well use the calculator's "mean" function to do the job.

The mean of the given 6 values is their sum, divided by 6. The units of the mean are the same as those of the contributors.

(1117 +1409 +675 +536 +1398 +1621)/6 = 6756/6 = 1126 . . . . degrees F

The mean of the data is 1126 °F.

6 0

2 years ago

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