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Svetradugi [14.3K]
3 years ago
15

The 1st flat-bar, or cross, or other operator means: -9-(-7)

Mathematics
1 answer:
babunello [35]3 years ago
7 0

-9-(-7)

-9--7

-9+7

7-9

-2

---

hope it helps

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Help, please will give Brainliest
Diano4ka-milaya [45]

9514 1404 393

Answer:

  A.  57 7/9 ft³

Step-by-step explanation:

The volume of a rectangular prism (cuboid) is the product of its dimensions.

  V = LWH

  V = (4 1/3 ft)(3 1/3 ft)(4 ft)

If you drop the fractions, this becomes ...

  V = (4 ft)(3 ft)(4 ft) = 48 ft³

You know the fractions add some amount to this, so you know the volume will be somewhat larger than 48 ft³. The only reasonable choice is A: 57 7/9 ft³.

__

If you feel the need to compute the volume exactly, you can do so using improper fractions.

  V = (13/3 ft)(10/3 ft)(4 ft) = 520/9 ft³ = 57 7/9 ft³

3 0
3 years ago
I need to find the answer to 2/3 - 1/5. What is it?
Hunter-Best [27]
2/3 - 1/5

make a common denominator

10/15 - 3/15

simplify

7/15 is your answer

hope this helps
4 0
3 years ago
PLZZZZZZZZZ HELP THANK YOUUUUUUUU !!!!!
photoshop1234 [79]

Answer:

<u><em>It has gone -160 miles.</em></u>

Step-by-step explanation:

To find the answer we will <em>multiply -40 by 4 hours</em>, and we get<em> -160 miles</em>.  Therefore, the car has <em>traveled -160 miles</em>.

7 0
3 years ago
Write the formula for the area of a triangle, A, where b is the base and h is the height of the triangle. Don’t include parenthe
Mkey [24]

Answer:

A = 1/2 × b × h

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Use the formula to evaluate the series 1/4 + 1/9 + 1/27 + 1/81.
Dmitriy789 [7]
Is the first term supposed to be 1/4, or did you actually mean 1/3?

I'll assume the latter. Write

S=\dfrac13+\dfrac19+\dfrac1{27}+\dfrac1{81}
S=\dfrac13+\dfrac1{3^2}+\dfrac1{3^3}+\dfrac1{3^4}
\dfrac13S=\dfrac1{3^2}+\dfrac1{3^3}+\dfrac1{3^4}+\dfrac1{3^5}
\implies S-\dfrac13S=\dfrac13-\dfrac1{3^5}
\dfrac23S=\dfrac13\left(1-\dfrac1{3^4}\right)
S=\dfrac12\left(1-\dfrac1{81}\right)
S=\dfrac{40}{81}
8 0
3 years ago
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