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3 years ago

Mandy has six boxes of pencils each box contains 10 to the fifth power of pencils how many pencils does Mandy have

1 answer:

3 0

You have to do 10•10•10•10•10 (multiply 10, 5 times). Once you multiply 10 five times, you end up with an answer of 100,000 pencils in each box. Then since you have 6 boxes of pencils you have to multiply 100,000•6, which equals 600,000 pencils total.

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Write the equation of a line with the slope of -7 and passing through the point (2, 2).

grandymaker [24]

Answer:

y=-7x+16

Step-by-step explanation:

y-y=m(x-x1)

y-2=-7(x-2)

y-2=-7x+14

+2 +2

y=-7x+16

5 0

3 years ago

Given the function f(x)=-8x2+8x+9,state whether the vertex represents a maximum or minimum point for the function.

Lelechka [254]

8x2+8x+9
=16x+8x+9
=24x+9
Are that right

5 0

3 years ago

Please Help!!!!!!

Goryan [66]

A) (8-8/6-2)=0
B) (3-4/7-3)= -1/4
C) (9-3/6-2)=3/2
D) (5-3/7-7)= 1/0 (not identified)

3 0

3 years ago

kofi and kojo were given 380 to share .kojo had 75 more than kofi. If kofi share is x find an expression for kojo share

AleksAgata [21]

Answer:

227.5

Step-by-step explanation:

x=Kofi

x+75=Kojo

x+x+75=380

2x+75=380

2x=305

x=152.5

Kojo=152.5 plus 75

227.5

4 0

3 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago