3 years ago

10. Write quadratic function with zeros -4, -7

Mathematics

1 answer:

Rashid [163]3 years ago

7 0

Hope that kinda helps.

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A person who is 6ft tall walks away from a streetlight. When the person is 15 feet away from the light, the tip of his shadow is

Citrus2011 [14]

We essentially have a ratio here:
$\frac{shadow}{actual}$

Since we know the ratio is going to stay constant at $\frac{5}{6}$ , we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
$\frac{5}{6}=\frac{20}{h}$
$5h=120$
$h=24$

5 0

3 years ago

1) Jessica charges $8 an hour for babysitting

nordsb [41]

A. The independent variable is time, as time is manipulating the value of her salary.

b. The dependent variable is her cost because what she charges for babysitting depends on how long she works.

c. y = 8x
y = how much she charges for this job
8 = the amount she charges per hour
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3 years ago

A scale model of a tiger measures 1.5 feet long. The Tigers actual length is 9 feet. What is the scale of the model?

seraphim [82]

$The\ scale\ of\ the\ model\ = \frac{A\ scale\ model\ of\ a\ tiger}{The\ tiger's\ actual\ length} = \frac{1.5}{9} =1:6$