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3 years ago

(-3x - 7) + (4x + 7) =

Mathematics

1 answer:

Alex73 [517]3 years ago

8 0

Answer:

Not sure if you want it factored or simplified

(-3x - 7) + (4x + 7) = x

Cannot factor

Step-by-step explanation:

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Find the value of the power<br>0.33 to the power of 3

vekshin1

Answer:

0.035937

Step-by-step explanation:

0.33 times 0.33 = 0.1089

0.1089 times 0.33 = 0.035937

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Figure MNPQR will be reflected across the x-axis to create figure M'N'P'Q'R'. Which rule describes this transformation? A.(x,y)

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Answer:

D.(x,y) → (x,-y)

Step-by-step explanation:

If it is reflected across the X-axis, then the X variable will stay the same and the Y variable will change.

I hope this helps!! Good luck!!

(Sorry if I'm wrong! It's kinda awkward because it is placed in the second quadrant instead of the first.)

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3 years ago

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3 years ago

Evaluate the expression for the given value of x.−4x + 7 for x = −4

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Answer:

Step-by-step explanation:

-4x+7

-4(-4)+7=16+7=23

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3 years ago

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3) An $1,000 investment is made in a trust fund at an annual percentage rate of 12%,

Elina [12.6K]

We need to find the interest rate in order to solve this problem:

.12/12 = (.01)

The number of years is unknown. T represents time in the following formula:

1000 (initial investment)

2000 (balance after t years from investment)

$$1000 (1 + .01)^{12t}$ =$2000

In order to isolate the exponential term, both sides must be divided by 1000.

$(1+.01)^{12t}$ =2

By using natural logarithm:

$Ln(1+.01)^{12t} =Ln2\\(12t)Ln(1+.01)=Ln2\\$

By dividing both sides of the equation by $(12)Ln(1+.01)$

$t=\frac{Ln(2)}{(12)Ln(1+.01)} =5.805yrs$

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3 years ago