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Delicious77 [7]
4 years ago
6

What is (−4/7)−(−10/7)=?

Mathematics
1 answer:
tester [92]4 years ago
6 0

Answer:

\frac{6}{7}

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Which of the following is equivalent to -4(X + 8)?
o-na [289]

Answer:

None of the above. -4x - 32

Step-by-step explanation:

-4(X + 8)

Distribute -4

-4x + 32 (8 × 4 =32)

4 0
3 years ago
The standard deviation for a set of data is 7.5. The mean is 235. What is the margin of error?
blondinia [14]

The margin of error is 0.97849

we are given

mean=235

so,

n=235

standard deviation =7.5

so,

\sigma=7.5

we know that

ME=2*standard error

and

SE=\frac{\sigma }{\sqrt{n} }

If confidence level is 95%, then we can multiply by 1.96

so, we can multiply by 2 to get ME

now, we can use marginal error formula

ME=\frac{2\sigma }{\sqrt{n} }

now, we can plug values

and we get

ME=\frac{2\times 7.5 }{\sqrt{235} }

ME=0.97849

7 0
3 years ago
Read 2 more answers
A dog is tied to a leash on a tree and the leash is 10 meters long. There is a bone 15 meters away but the dog easily gets the b
Alex17521 [72]

Answer:

One way the dog can easily reach the bone is given by the relationship between the dog, the tree, and the bone

The dog can easily reach the bone when the tree is between the the dog and the bone, and the dog was more than 5 meters behind the tree

Therefore the distance the dog can reach in the direction of the bone from its position behind the tree is more than 15 meters and the dog can easily get the bone while the leash is not harmed

Step-by-step explanation:

3 0
3 years ago
11m-14&lt;7m+14 work out<br>​
mixas84 [53]

Step-by-step explanation:

11m - 7m < 14 + 14

4m < 28

m < 28 / 4

m < 7

7 0
3 years ago
HELP ASAP <br><br> Solve for the measure of ∠PMR
kkurt [141]

Answer:

116*

Step-by-step explanation:

Since <PMR consists of <RPW and <WPM and we know that these are the same, we just have to multiply 58 by 2 and get 116, which will be your answer.

Tell me if I'm wrong :)

8 0
3 years ago
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