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STatiana [176]
3 years ago
9

Please help me! i’m so bad at this lol

Mathematics
2 answers:
Bezzdna [24]3 years ago
4 0

Answer:

its 8

Step-by-step explanation:

<3

sladkih [1.3K]3 years ago
4 0
For these problems you just want to set whats given to the equations

5. 63 = -7x

so you solve this like any other equation, divide both sides by -7

your answer to question 5 is x = -9

6. 18 = 6x - 12

you will add your 12 over

30 = 6x

x = 5

7. -4 = 1/2x - 3

-1 = 1/2x

x = -2

i cant read what 8 is but just repeat
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Meryl needs to cut down 10.5 trees for every 5 cabins she builds.
Zepler [3.9K]

Answer:

for seven cabins it should be 14.7 trees, im not sure about 3 cabins, sorry :(

5 0
3 years ago
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a rectangle is 5 feet longer than it is wide. the perimeter of the rectangle is 34 feet. what is the length of the rectangle?
DochEvi [55]
The length is 11 feet and the width is  7 feet long 
3 0
3 years ago
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Im not good with this. also letters should have never been added to math.
Sloan [31]

Answer:

153

Step-by-step explanation:

5 0
3 years ago
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If g(x) = -2x+7, what is the new function defined by h(x) = g(2x^2 +1)
hammer [34]

Answer:

h(x) = - 4x² + 5

Step-by-step explanation:

To find h(x) = g(2x² + 1), substitute x = 2x² + 1 into g(x)

h(x) = - 2(2x² + 1) + 7

      = - 4x² - 2 + 7

      = - 4x² + 5

5 0
4 years ago
A principal of $4700 was invested at 4.75% interest, compounded annually.
Kitty [74]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

y = P(1 + r/n)^nt

Where

y = the value of the investment at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount invested

From the information given,

P = $4700

r = 4.75% = 4.75/100 = 0.0475

n = 1 because it was compounded once in a year.

Therefore, the exponential function showing the relationship between y and t is

y = 4700(1 + 0.0475/1)^1 × t

y = 4700(1.0475)^t

7 0
3 years ago
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