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n200080 [17]
2 years ago
13

Thomas decides to use the method of proportions and similar

Mathematics
2 answers:
Debora [2.8K]2 years ago
7 0

Answer:

The lamppost is 30 ft tall.

Step-by-step explanation:

You need to draw a diagram of the problem. Refer to attachment.

Now you need to convert the measurements that are in feet to in. The 1 foot ruler is now 12 in. and the 5 foot post's shadow is now 60 in.

The next step is to create a proportion between both angles. \frac{x}{1} =\frac{60}{2}

x over 1 is simplified to x and 60 divided by 2 is just 30. So the lamppost is 30 ft tall.

Hope that helped. :)

KATRIN_1 [288]2 years ago
4 0
I’m pretty sure it’s C
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PLEASE HELP! Given the function f(x) = 3x2 − 4, what is f(-2)?
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Step-by-step explanation:

f(x) = 3x^2 − 4

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She worked a total of 15 hours. If she makes $15 per hour tutoring and $9 per hour at the grocery store and made a total of $159
Ugo [173]

Answer:

11 hours she worked at the grocery store

Step-by-step explanation:

assuming,

the number of hours worked at tutoring = x

the number of hours worked at grocery store = y

which means,

the amount she made at tutoring = x* $15

the amount she made at grocery store = y*$9

we have 2 equations

<em>total number of hours</em>

1) x+y= 15  

<em>total amount she earned</em>

2) x* $15+ y* $9= $159

From equation 1

x+y= 15  

x=15-y

<em>we replace this x value in equation 2</em>

x* $15+ y* $9= $159

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(15*15)- 15y+9y=159

225-6y=159

225-159=6y

66=6y

66/6=y

<u>11=y</u>  <em>the number of hours she worked at grocery store. </em>

<em>we place y=11 in our derived x equation</em>

x=15-y

x=15-11

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3 0
3 years ago
Sushmila is buying Mehdi supplies
denis-greek [22]

Answer:

3(p - 5) + 2s should be the correct answer!

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2 bottle so, 2s

add them up and get the answer

Anyways, hope this helped!

8 0
3 years ago
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