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kompoz [17]
3 years ago
11

Find the percent notation

Mathematics
1 answer:
ratelena [41]3 years ago
5 0
To reach percentage, you just have to move the decimal two times to the right. Doing that to 0.12 leaves us with 12, which is the answer.
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The area of a parallelogram is given by the formula A=bh the area of the parallelogram on the right is 126 sq units. Find its ba
Elden [556K]
From the diagram we have

Base = 4x+1
Height = x+1

Area = Base × Height
126 = (4x+1)(x+1) ⇒ Expand the double bracket
126 = 4x^{2}+5x+1 ⇒ Subtract 126 both sides
0 = 4x^{2}+5x-125 ⇒ Factorise the quadratic expression
0 = (x-5)(4x+25) ⇒ Equating each factor to zero

x-5=0                       4x+25=0
x=5                           x=- \frac{25}{4}

We need the positive value of x so we use x=5

Height = 5+1 = 6
Base = 4(5)+1 = 21

8 0
4 years ago
Please include the steps that took you to get your answer. I am very confused on what to do with the 1/2.
Juliette [100K]

First let's review how to expand this!

(ax+b)^2=a^2*x^2+2abx+a^2

In this case

(2x^2+1/2)^2=2^2*x^2+2*1/2*2x+(1/2)^2

=4x^2+2x+1/4

Done!

8 0
3 years ago
9/40 in a decimal what's the answer
Nitella [24]
\frac{9}{40} = 0.2 is your answer.
3 0
3 years ago
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Describe some ways that the additive inverse of a number is important
masya89 [10]
The additive inverse of a number is important because it helps you to understand how to cancel terms for variables in equations and formulas.
6 0
3 years ago
25 graduating seniors form Stellar High School are randomly selected. A mean GPA of 3.42 is calculated with a margin of error ±0
Fantom [35]

Answer: it is b

Step-by-step explanation:

3 0
3 years ago
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