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3 years ago

Please help me figure this out

Mathematics

2 answers:

givi [52]3 years ago

7 0

Answer:

B. The rate of change of the cost of parking is $8.00 per hour.

Step-by-step explanation:

The cost for parking at the airport is modeled by the function;

$c(x)=8x+10.00$

This means that, there is a fixed cost of $10.00 and additional cost of

$8.00 every hour.

The slope refers to the unit rate which is $8.00

The correct answer is B.

grin007 [14]3 years ago

6 0

I believe the answer is B

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nadezda [96]

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2 years ago

Help me to understand this:<br> V=lwh; l=14, w=8, h=3 (volume of a rectangular box)

Valentin [98]

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3 years ago

Jenna sells apples and pears. If 20 apples and 60 pears re sold every hour, there will be 80 pears when all the apples are sold.

lutik1710 [3]

Answer:

There are 1,360 pears.

Step-by-step explanation:

Suppose that there are P pears and A apples.

We know that:

"If 20 apples and 60 pears are sold every hour, there will be 80 pears when all the apples are sold."

Suppose that all of these are sold after N hours, then:

20*N = A

80*N = P - 80

We also know that:

"if 60 apples and 20 pears are sold every hour, there will be 400 pears when all the apples are sold."

60*N = A

20*N = P - 400

Then we have four equations:

20*N = A

80*N = P - 80

60*N = A

20*N = P - 400

From the first one and the second one, we get:

20*N = A = 20*N = P - 400

A = P - 400

Now we have 3 equations:

80*N = P - 80

60*N = A

A = P - 400

Now we can just replace the third equation into the second one, then we get:

60*N = A = P - 400

Now we have two equations:

80*N = P - 80

60*N = P - 400

Now, remember that we want to find the number of pears, so we want to find the value of P.

To do it, we can take the quotient of the two equations, so we get:

(80*N)/(60*N) = (P - 80)/(P - 400)

8/6 = (P - 80)/(P - 400)

Now we can solve this for P

(8/6)*(P - 400) = P - 80

(8/6)*P - (8/6)*400 = P - 80

(8/6)*P - P = (8/6)*400 - 80

(2/6)*P = (8/6)*400 - 80

P = (6/2)*( (8/6)*400 - 80 )

P = 3*( (8/6)*400 - 80 ) = 1,360

There are 1,360 pears.

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2 years ago

Which sequences of transformation applied to shape 1 prove that shape 1 is similar to shape 2

stellarik [79]

All it did was shrink in size and move to the square diagonal from it

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3 years ago

Please help. 10 points. Please do not guess. Guesses will be reported. Thanks

Allushta [10]

The intersecting secant-tangent theorem says that

$AP^2=PT\cdot TO$

where T is the point at which line segment PO touches the circle. Similarly,

$BP^2=PT\cdot TO$

so we have

$AP^2=BP^2\implies AP=BP$

OP is of course as long as itself, and AO and BO are radii of the same circle so they have the same lengths.

This means triangles APO and BPO are congruent, which means angles APO and BPO are congruent, so angle APB is bisected by PO.

8 0

3 years ago