3 years ago

Evaluate 10.3v + 9.9w when v = 7 and w = 8

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

Answer:

151.3

Step-by-step explanation:

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Y=-2x²-8x-5 domain and range

Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

$y = - 2 {x}^{2} - 8x - 5$

This is a polynomial function.

The domain is set of all values of x, that makes this function defined.

Since polynomial functions are defined everywhere, the domain is all real numbers.

To find the range we put the function in vertex form:

$y = - 2( {x}^{2} + 4x) - 5$

$y = - 2( {x}^{2} + 4x + 4) - 5 + - 4 \times - 2$

$y = - 2( {x} + 2)^{2} - 5 + 8$

$y = - 2( {x} + 2)^{2} + 3$

The maximum value is 3

The function turns downward, hence the range is:

$y \leqslant 3$

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ValentinkaMS [17]

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3 years ago

Solve: 10(0.5x- 2) = -3x + 20 + 8x

eduard

Answer: no solution

Step-by-step explanation:

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A water pitcher holds 3.5 quarts of water. How many liters of water does it hold? (1 liter = 1.06 quarts) A) 2.2 liters B) 3.3 l

Leona [35]

The answer is B. 3.3 Liters.

3.5 Quarts is 3.31224 liters.

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4 years ago

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mafiozo [28]

Answer:

um 100%

Step-by-step explanation:

The volume is 2.8125 inches

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2 years ago

Evaluate 10.3v + 9.9w when v = 7 and w = 8​

Evaluate 10.3v + 9.9w when v = 7 and w = 8