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oksian1 [2.3K]
3 years ago
15

Select the expressions that are equivalent to -5(-9b)

Mathematics
1 answer:
jeka57 [31]3 years ago
8 0

Answer:

45b

Step-by-step explanation:

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Write the number with the same value as 28 tens
pantera1 [17]
The answer would be 280 because 28x10 is 280
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3 years ago
3 < -5n + 2n Please show your work! Just in number form!
vovangra [49]

Answer:

[See Below]

Step-by-step explanation:

✦ Combine like terms:

  ✧ -5n + 2n = -3n

✦ Rewrite:

  ✧ 3 < -3n

✦ Divide:

  ✧ 3 / -3 = -1

So n = -1.

~<em>Hope this Helps Mate. If you need anything feel free to message me. </em>

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3 years ago
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What is angle A? 313 degrees 133 degrees 143 degrees 147 degrees
Evgesh-ka [11]

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Step-by-step explanation:

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4 years ago
The roof rafter of a house has been raised to a height of 13 yards at the ridge. Half of the length of the run measures 9 yards.
dimulka [17.4K]

Answer:

15.81 = ?

Step-by-step explanation:

Since this is a right triangle we can use the Pythagorean theorem

a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse

9^2 + 13^2 = ?^2

81 +169 = ?^2

250 = ?^2

Taking the square root of each side

sqrt(250) =?

15.8113883= ?

To the nearest 100th

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3 0
3 years ago
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Find the area of this circle. Use 3.14 for pie .
Marrrta [24]

Answer:

8820.26 m^2

Step-by-step explanation:

The diameter is 106

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The area of a circle is

A = pi r^2

  = (3.14) ( 53)^2

  = 8820.26 m^2

4 0
3 years ago
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