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3 years ago

The graph below shows the number of handbags that Mandy made in one day. what are the variables?

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

There are two variables: time(dependent) and number of handbag(independent). Time changes as the number of hand bags changes.

shepuryov [24]3 years ago

6 0

Answer: Introduction to Functions Unit Test

No, The points are random

The time increases while the number of bags do too. The time is independent and the bags are dependent.

A. P (t)= (P-5)+0.05 (P-5)+1.05(P-5)

B.Pt=1.05(P-5)=1.05(15.50-5)=$11.03

Yes, the points make a straight line

Step-by-step explanation:

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3 years ago

Read 2 more answers

Determine y when x = 2.5, if y = 144 when x = 8.

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Answer:

=144*8/2.5

=1152/2.5

=460.8

Step-by-step explanation:

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3 years ago

An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.

faltersainse [42]

Answer:

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

$y=a(x-h)^2+k$ , (h,k) is the center

$y=a(x-50)^2+25$

the parabola starts at (0,0) that is (x,y)

$0=a(0-50)^2+25$

subtract 25 from both sides

$-25=a(-50)^2$

$-25=a(2500)$

divide both sides by 2500

$a=-\frac{1}{100}$

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

$y=-\frac{1}{100}(40-50)^2+25$

y=24

the height of the arch 10 feet from the center is 24 feet

4 0

3 years ago