2 years ago

What is the value of the expression 6.5 - (-7.25)?

Mathematics

1 answer:

adell [148]2 years ago

5 0

Answer:

13.75

Step-by-step explanation:

Slash and dash. turn the both minuses into positives and add like normal. 6.5 plus 7.25 equals 13.75.

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Is -2 a solution to 4x^(3)-x^(2)+16x-4

sergiy2304 [10]

Answer:

Not a solution

Step-by-step explanation:

In order for $x=-2$ to be a solution, the result after substituting must be 0:

$4(-2)^3-(-2)^2+16(-2)-4\stackrel{?}{=}0$

$4(-8)-4-32-4\stackrel{?}{=}0$

$-32-40\stackrel{?}{=}0$

$-72\neq0$

Therefore, $x=-2$ is not a solution to $4x^3-x^2+16x-4$

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2 years ago

PLSS help

GrogVix [38]

Answer: D, 1/12

Explanation:
Since it says how much MORE, we subtract. SO
3/4 - 2/3= 1/12

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1 year ago

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In January, you deposit $16 in your checking account. Each month, you deposit $15 more than you did the month before. How much m

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You would put 151 dollars in your account at October.
16+15+15+15+15+15+15+15+15+15=151

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2 years ago

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the British Thermal Unit(BTU) is a unit of energy used globally in air conditioning industries. the number of BTUs needed to coo

7nadin3 [17]

Answer:

Step-by-step explanation:

B = 377lw

I will use L for length instead of l.

B = 12,252.5 BTU

w = 5 m

First, we find the length.

12,252.5 = 377(L)(5)

12,252.5 = 1885L

L = 6.5

The length is 6.5 m. The width is 5 m.

A = LW = (6.5 m)(5 m) = 32.5 m^2

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2 years ago

A line passing through (6, a) and (9, -4) is parallel to 2x - 3y = 6.

ioda

Answer: -6

Step-by-step explanation:

-6

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2 years ago