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Irina-Kira [14]
3 years ago
8

How do you factor out the coefficient of 2.2x+4.4

Mathematics
1 answer:
NISA [10]3 years ago
8 0
2.2x and 4.4 have a GCF of 2.2.  So, you can factor that out like so:
2.2x+4.4 = 2.2*x+2.2*2 = 2.2(x+2)

Hope this helps!
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When you change fractions and mixed numbers into decimals, why is the denominator always 10, or 100
kap26 [50]
Because they made it that way.

3 0
3 years ago
Read 2 more answers
(I WILL GIVE BRAINLIEST)
LUCKY_DIMON [66]

For this case we have the following polynomial:

3x ^ 2 + 9x + 15

The standard form of the polynomial is given by:

ax ^ 2 + bx + c

Where, the axis of symmetry of the polynomial is given by the expression:

x = - \frac {b} {2a}}

In this case we have:

a = 3\\b = 9

Therefore, replacing values we have:

x = - \frac {9} {2 (3)}

Rewriting we have:

x = - \frac {9} {6}\\x = - \frac {3} {2}

Answer:

The symmetry axis of the polynomial is given by:

x = - \frac {3} {2}

option C

6 0
3 years ago
n 1917 the cost of a first-class postage stamp was 3¢. In 1974 the cost for a first-class postage stamp was 10¢. What is the per
alexdok [17]

Answer:

233.33 %.

Step-by-step explanation:

The increase is 10 - 3 = 7c.

Percentage increase =  100 * 7 / 3.

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8 0
3 years ago
What is the value of x in the figure?
finlep [7]
<h3>Answer:  x = 29</h3>

======================================================

Work Shown:

x+61 = 90

x+61-61 = 90-61

x = 29

------------

Explanation:

  • The first step is valid because the two angles x and 61 are complementary angles. They form a right angle or 90 degree angle.
  • In the second step, I subtracted 61 from both sides to undo the "+61".
3 0
3 years ago
Read 2 more answers
Give your answer as a mixed number. 2 6/7 ÷ 2/3 =?​
AfilCa [17]

2 6/7 ÷ 2/3

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20/7 × 3/2

= 60/14

reduce to it's lowest term

30/7 = 4 2/7

8 0
3 years ago
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