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3 years ago

What type of math is adding subtracting of positive and negative numbers

Mathematics

1 answer:

allochka39001 [22]3 years ago

6 0

Hello There!

It is Arithmetic.

Hope This Helps You!
Good Luck :)

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Cambridge has a job mowing lawns. He mowed 5 lawns last week and earned $82.50. The table shows his earnings for the week. Which

NeTakaya

For every lawn Cambridge mows he earns 16.50 USD, knowing this we now know the unit rate. The unit rate is (1,16.50).

8 0

2 years ago

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Plzz help mee! I am timed

LuckyWell [14K]

Answer:

the answer to this question is A

Step-by-step explanation:

l*w*h

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2 years ago

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What is the quadratic function f(x)=x^2+6x-2 In vertex form?

Yuliya22 [10]

Answer: Option D

$f(x)=(x+3)^2 -k$

Step-by-step explanation:

For a quadratic function of the form

$ax ^ 2 + bx + c$

The x coordinate of the vertice is:

$x =-\frac{b}{2a}$

In this case the function is:

$f(x)=x^2+6x-2\\\\$

$a=1\\b=6\\c=-2$

The x coordinate of the vertice is:

$x=-\frac{6}{2*1}\\\\x=-3$

The y coordinate of the vertice is:

$f(-3) = (-3)^2 +6(-3) -2\\\\f(-3)=-11$

The vertice is: (-3, -11)

The form e vertice for a quadratic equation is:

$f(x)=(x-h)^2 +k$

Where

the x coordinate of the vertice is h and the y coordinate of the vertice is k.

Then h=-3 and k =-11

Finally the equation $f(x)=x^2+6x-2\\\\$ in vertex form is:

$f(x)=(x+3)^2 -k$

6 0

3 years ago

Read 2 more answers

a bottle of hand lotion is on sale for $2.25 . If this price represents a 50% discount from the original price , what is the ori

N76 [4]

So 2.25 is 50% of the original price
let's write original price as x
50% of x = 2.25
0.5 * x = 2.25
divide both sides by 0.5
x = 4.5

The original price is 4.5

To check:
50% * (4.5) =?= 2.25
0.5 * 4.5 =?= 2.25
2.25 = 2.25

Hope this helps.

6 0

2 years ago

Could someone help me? I’ll give 5 stars !

Amanda [17]

Answer:

First option is the right choice.

Step-by-step explanation:

y = mx + b

m = 60-50/4-2 = -5 (Fall)

y = f(x) = -5x + 70

Best Regards!

3 0

2 years ago