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Levart [38]
3 years ago
11

How do you subtract and add integers

Mathematics
2 answers:
sweet [91]3 years ago
8 0
Integers are whole numbers.

So subtracting 7-5 is 2

Adding the numbers 7+5 is 12

Subtraction is the différence between the two numbers.

Illusion [34]3 years ago
6 0
Well... it only depends what you're working with..

If you're working with both numbers as positive move up (or move right on a number line). But if you're working with both numbers as negatives you would go downward (or move to the left on a number line).. If you have opposite signs for the numbers you would have to subtract the number.

Remember⬇

Positive & Positive = Positive

Negative & Negative = positive (or negative... it depends what you're working with)

Positive & Negative = Negative


You might be interested in
Brianna was making a garden. Half of the garden was 2/5. How much was the other half of the garden?
xxMikexx [17]

Answer: 3/5


Step-by-step explanation: 5/5 - 2/5 =3/5

PLZ Give brainliest





4 0
2 years ago
Read 2 more answers
the surface area of a sphere is 1,017.36 square inches.what is the volume of the sphere? use 3.14 for pi
emmasim [6.3K]

Answer:

<em>Area = 254.34 inches ³</em>

Step-by-step explanation:

The formula to find the surface area of a sphere is:

SA = 4\pi r^{2}

To find the volume of the sphere, we first need to figure out the radius (r) of the sphere. We can accomplish this by reversing the formula that was used to find the surface area. (1017.36 in^{2})

SA = 4\pi r^{2}

1017.36 = 4\pi r^{2}

Divide both sides by pi (3.14).

1017.36 = 4\pi r^{2}

324 = 4 r^{2}

Divide both sides by 4.

324 = 4 r^{2}

81 = r^{2}\\

Find the square root of both sides.

81 = r^{2}\\

\sqrt{81} = r

<em>radius = 9</em>

<em />

Insert the value of the radius into the formula for finding the volume of a sphere. (A=\pi r^{2})

(A=\pi r^{2})

A=\pi (9)^{2}

A=\pi (81)

A = 254.34

<em>Area = 254.34 inches ³</em>

<em />

~Hope this helps!~

4 0
3 years ago
Find the surface are of the cylinder in terms of pi
Andrej [43]
Hello!

To find the surface area of a cylinder you use the equation

SA = 2 \pi rh + 2 \pi  r^{2}

SA is surface area
r is radius
h is height

PUt in the values you know

SA = 2 \pi (7)(18) + 2 \pi  * 7^{2}

Square the number

SA = 2 \pi (7)(18) + 2 \pi * 49

Multiply 7 and 18

SA = 2 \pi * 126 + 2 \pi  * 49

Multiply 126 by 2

SA = 252 \pi  + 2 \pi  * 49

Multiply the 49 by 2

SA = 252 \pi  + 98 \pi

Add

SA = 350 \pi

The answer is A)350 \pi cm^{2}

Hope this helps!
7 0
2 years ago
Please help me!!!!!
chubhunter [2.5K]

Answer:

y = - \frac{2}{5} (x - 5)² + 7

Step-by-step explanation:

The equation of a quadratic in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

Here (h, k ) = (5, 7 ) , then

y = a(x - 5)² + 7

To find a substitute (10, - 3 ) into the equation

- 3 = a(10 - 5)² + 7 ( subtract 7 from both sides )

- 10 = 5²a = 25a ( divide both sides by 25 )

\frac{-10}{25} = a , that is

a = - \frac{2}{5}

y = - \frac{2}{5} (x - 5)² + 7 ← in vertex form

8 0
2 years ago
What’s the correct answer
ludmilkaskok [199]
I think it’s C i think is right
7 0
3 years ago
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