3 years ago

Find the following when a = -2, b = 3, c = -1/3 a^3 - 6c

Mathematics

2 answers:

4vir4ik [10]3 years ago

8 0

That would be -34.

-2 times -2 times -2 minus 6 times -1/3

6/1 times -1/3 (cross multiply)

-16 minus 18= -34

DENIUS [597]3 years ago

5 0

Easy, just plug n chug

a=-2 b=3 and c=-1/3

-2^3=-8

-6(-1/3)=2

-8+2=-6

Thus, your answer is, 6.

The b was extra unnecessary information.

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The roof of the building shown below has a span of 48 feet. The rafters upon which the roof is laid are 30 feet long, including

anyanavicka [17]

Solution :

Given :

Span of the roof = 48 feet

Length of the rafter = 30 feet (including the 4 feet overhung)

So, for the 30 feet long rafter, 26 feet will be rafter length from the high point of the roof to the edge of the roof and 4 feet will be the roof overhung.

Therefore, the horizontal span per rafter is

$=\frac{48}{2}$

= 24 feet

a). So the rise of the roof is $= \sqrt{(26)^2-(24)^2}$

= 10 feet

b). Pinch of the roof is $=\frac{\text{rise}}{\text{run}}$

$=\frac{10}{24}$

$=\frac{5}{12}$

c). The percent of the roof used as overhung is

$=\frac{4+4}{60}\times 100$

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= 13.33 %

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2 years ago

Analyze the diagram below and complete the instructions that follow. the measure of SUT is twice m RUS if m RUS = (18x-8) and m

Hitman42 [59]

Is this a year 9 question and if yes I do not have a clue lol

4 0

3 years ago

Help will give brainlyist

denpristay [2]

Answer:

1. 25%

2. 150%

3. 3%

4. 75%

5. 60%

6. 210%

7. 10%

8. 1%

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11. 105%

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Step-by-step explanation:

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2 years ago

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Mia can purchase a 40-ounce jar of peanut Butter for $5.20 or a 15-ounce har for $2.70. How much does Mia save per ounce by usin

Reptile [31]

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3 years ago

Identify the like term 9x, 10y, -9y, 10

quester [9]

the like terms are: 10y, and -9y because they are both of the same variable, y.

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3 years ago