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lesya [120]
4 years ago
8

Multiply.round your answer to the nearest tenth 3×2.5×1.05. A.7.9 B.8.0 C.11.25 D.11.3

Mathematics
2 answers:
dangina [55]4 years ago
7 0
3 x 2.5 = 7.5
7.5 x 1.05 = 7.8750

Note : remember to always line up the decimal points.

Hope this helps

DedPeter [7]4 years ago
7 0
3 x 2.5 x 1.05 = 7.875

7.875 when rounded to the nearest tenth is 7.9

Therefore, the answer would be letter A. 7.9
:)
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Sedbober [7]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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Write and graph the inverse variation in which y = 8 when x = –4.
sweet-ann [11.9K]
For this case we have that an inverse variation in a function is given by:
 y = k / x

 For this case, we must find the value of the constant k.
 To do this, we substitute the values of x = -4, y = 8.
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 Clearing k we have:
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k = -32
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 Note: see attached image.
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3 0
3 years ago
Factorize of 2a³-a²+a-2​
IrinaK [193]
<h3>Answer:  (a - 1)(2a² + a + 2)</h3>

=========================================================

Explanation:

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Plug each possible root one at a time into the original expression given. If the simplified result is 0, then that possible root is an actual root.

If we tried say a = -1, then,

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But if we tried say a = 1, then,

2a³-a²+a-2​ = 2(1)³-1²+1-2​ = 0

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Since a = 1 is a root, this makes (a-1) to be a factor.

From here, use either synthetic or polynomial long division to determine the other factor. Refer to the diagram below for each method.

Regardless of which method you pick, the quotient is 2a² + a + 2 which is the other factor needed. The remainder of 0 tells us we have (a-1) as a factor. For more information, check out the remainder theorem.

5 0
2 years ago
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Bogdan [553]

Answer:

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Step-by-step explanation:

The mistake is in Step 1--Tiffany was correct in multiplying the left side (h / 0.5) by 0.5 but made an error on the right side by dividing the 7 by 0.5 instead of multiplying.

<em>Thus, h= 3.5</em>

7 0
3 years ago
A Wheatstone quarter bridge is to be used to measure strain. The uncertainties in the supply (V_s) and output (V_o) voltages are
Ierofanga [76]

Answer:

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