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Oksanka [162]
3 years ago
7

What number should be added to −76 to get a sum of 61?

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer: 137

Step-by-step explanation:

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What value for c will make the expression a perfect square trinomial? X^2-7x+c
gavmur [86]

Answer: c= 49/4

Step-by-step explanation:

6 0
3 years ago
Write a mix number that is greater than 3 but less than 4
Finger [1]
Lets find that number:
3 < x < 4
that can easily be thought as 3.5
<span>3 < 3.5 < 4
</span>now lets change the decimal to a mix number:
3.5 = 3 + 0.5
= 3 + 5/10
= 3 + 1/2
= 3 1/2
8 0
3 years ago
Read 2 more answers
How to solve (2.31*10^-6)+(5.87*10^-4)
S_A_V [24]

We want to calculate the following

2.31\cdot10^{-6}+5.87\cdot10^{-4}

Using the properties of exponents, we have that

10^{-6}=10^{-4}\cdot10^{-2}

So we have

2.31\cdot10^{-6}+5.87\cdot10^{-4}=2.31\cdot10^{-2}\cdot10^{-4}+5.87\cdot10^{-4}

So, if factor 10^-4 on the right side, we have

10^{-4}(2.31\cdot10^{-2}+5.87)

Note that

2.31\cdot10^{-2}=0.0231

Then,

5.87+2.31\cdot10^{-2}=5.87+0.0231=5.8931^{}

So we have that

2.31\cdot10^{-6}+5.87\cdot10^{-4}=5.8931\cdot10^{-4}

5 0
1 year ago
What is the answer to this problem -2x – 4 &lt; 3x + 21
horsena [70]

Start with

-2x-4 < 3x+21

Add 2x to both sides:

-4 < 5x+21

Subtract 21 from both sides:

-25 < 5x

Divide both sides by 5. Since it is positive, we don't have to change the inequality sign:

-5 < x

So, the answer is x > -5


6 0
2 years ago
You want to walk from home to a clothing store that is 3/8 miles away. You stop for a rest after 1/4 miles. How much farther do
choli [55]
3/8-1/4

3/8-2/8

1/8 miles left
3 0
3 years ago
Read 2 more answers
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