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iren [92.7K]
3 years ago
11

What is the sum? 8+(-12) О-20 0-4 020

Mathematics
2 answers:
rodikova [14]3 years ago
7 0

Answer: -4

Work: So, to get -4, we need to simplify the equation. If you see any equation with +(- that's subtraction. So, with the rule, this equation is basically 8-12, and that's -4.

skad [1K]3 years ago
3 0

Answer:

-4

Step-by-step explanation:

8+(-12)

= 8-12

12-8=4

the answer is -4

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The sin of 90 = 1 but how you get that with out a calculator I have no idea. Do you have to show your work?

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3 years ago
Jimmy paid off a mortgage by paying $775 per month for 12 years. What was the original amount of the mortgage if the interest ra
valentinak56 [21]

Answer:

The original amount of the mortgage was $66231.45.

Step-by-step explanation:

In order to find the original amount of the mortgage, you can use the following formula to calculate the present value:

PV=FV/(1+r/n)^nt

PV=present value

FV=future value= 775*12*12=111.600

r=rate of interest=0.0440

n= number of compounding periods= 2

t= time in years=12

Now, you can replace the values on the formula:

PV=111600/(1+(0.0440/2))^2*12

PV=111600/(1.022)^24

PV=111600/1.685

PV=66231.45

According to this, the answer is that the original amount of the mortgage was $66231.45.

4 0
3 years ago
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alexgriva [62]

Answer:

101

Step-by-step explanation:

Find the area of the left triangle

11 -8 = 3

A = l*w = 15*3 = 45

Then find the area of the right triangle

A = l*w = 8*7 = 56

Add the areas together

45+56 =101

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3 years ago
Lawrence is making 10 gift baskets. The table shows the food he has bought for the baskets . if the food it divided evenly , how
IrinaVladis [17]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Keep getting this wrong
Minchanka [31]

Remember that the y-intercept is where the function has a value of x = 0 and the x-intercept is where the function has a value of y = 0. Thus, to find the x-intercept and y-intercept, we can substitute these values into the equation and solve for the other variable.


<u>x-intercept</u>

Since the x-intecept has a y-value of 0, we can substitute this into the function and solve for x.

0 = -2x - 3

  • Set up

3 = -2x

  • Add 3 to both sides

x = - \dfrac{3}{2}

  • Divide both sides by -2

The x-value of the x-intercept is -\frac{3}{2} and the y-value is 0, meaning that the x-intercept has coordinates \boxed{(-\frac{3}{2}, 0)}.


<u>y-intercept</u>

Since the y-intercept has a x-value of 0, we can substitute this into the equation and solve for y:

y = -2(0) - 3

  • Set up

y = -3

  • Multiply and simplify

The y-value of the y-intercept is -3, meaning that the y-intercept of the function is \boxed{(0, -3)}.

4 0
3 years ago
Read 2 more answers
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