MATHEMATICS HIGH SCHOOL

Evaluate -12-(-7)
rewrite

Answers

Answer 1
Answer:

Answer:

-5

Step-by-step explanation:

Subtracting a negative number is the same as adding a positive number.

-12 - (-7)

-12 + 7

-5

Best of Luck!
Answer 2
Answer:

Answer:

-5

Step-by-step explanation:

two negative signs equal a positive sign.

Soo that would make -12-(-7) turn into -12+7 .

-12+7 =-5

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Please help, the assignment is due at 11:59PM

Answers

slope= (y2-y1)/(x2-x1)
so (13-4)/(5-2) = 9/3 = 3

From the sum of 3x+ 5y -2 and 2x-3y +1 subtract the sum of 4x -8y +3 and -5x + 6y +7

Answers

Answer:

First, let's simplify both sums by combining like terms:

3x + 5y - 2 + 2x - 3y + 1 = 5x + 2y - 1

4x - 8y + 3 - 5x + 6y + 7 = -x - 2y + 10

Now we can subtract the second sum from the first:

(5x + 2y - 1) - (-x - 2y + 10) = 5x + 2y - 1 + x + 2y - 10

Simplifying this expression, we get: 6x + 4y - 11

Find the surface area of the cone in terms of pi.

Answers

Answer:

First option is the correct choice.

Step-by-step explanation:

SA=\pi r^2+\pi r l\n\n=\pi \left(3\right)^2+\pi \left(3\right)\left(8\right)\n\n=33\pi \:ft^2

Best Regards!

What is the answer to this problem
8x-2=-9+7×

Answers

8x−2=−9+7x

Simplify:

8x−2=−9+7x

8x+−2=−9+7x

8x−2=7x−9

Subtract 7x from both sides.

8x−2−7x=7x−9−7x

x−2=−9

 Add 2 to both sides.

x−2+2=−9+2

x=−7
you want like terms on the same side. so you want x on the same side
subtract 7x from 8 x = x
add 2-9 = -7
now you have x= -7

The difference of a number q and 8

Answers

The difference of a number q and 8 is q-8.

It is required to write thedifference of a number q and 8.

What is algebra?

A part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

Given that:

considering the word "difference" means subtraction, so to  subtract 8 from q.

the difference of a number q and 8 is

q-8.

Therefore, the difference of a number q and 8 is q-8.

Learn more about algebra here:

brainly.com/question/652840

#SPJ2
8-q, considering the word "difference" means subtraction, so you are subtracting 8 from q.

The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners?

Answers

Since the value decreases by 25% each time, the next cost is the current cost times 0.75 (since new cost is 75% of current cost).
To find the value of the book after x times sold, you can use:
cost = 85(0.75)^x 
Just plug in the number of times it is resold to find the value.
A exponential function would represent it nicely f(x)=b*a^x
Reason being a decrease of %
a = 1+r
r = -25% = -0.25
And b being what the original cost of the book
f(x)=85*0.75^x
Where f(x) is the price after x amount of previous owners
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