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Kitty [74]
3 years ago
8

HELP NOW PLZ/////////

Mathematics
1 answer:
kvasek [131]3 years ago
6 0

Answer:

uh idk

Step-by-step explanation:

sorry

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After stepping into a room with unusual lighting, Michelle's pupil has a diameter of 8 millimeters. What is the pupil's circumfe
RideAnS [48]
2 x Pi x Radius I think?
8 0
4 years ago
If f(x)= 20-3x, then find a if f(a)= -11.
Basile [38]

Answer:

53

Step-by-step explanation:

if f(a)= -11 the the equation is: 20-3(-11)

First, multiply -3 and -11:

20-3×(-11)

20+33

Now, add:

20+33= <u>53</u>

<u></u>

Hope this helps!! <3

6 0
3 years ago
When a 40-foot pole casts a shadow of
Semenov [28]

Set up a ratio with height over shadow height:

40/30 = x/15

Cross multiply:

40 x 15 = 30x

600 = 30x

Divide both sides by 30:

X = 20

The tree is 20 feet tall.

5 0
3 years ago
Read 2 more answers
Find the total area of the prism.<br><br> 144 sq. in.<br> 576 sq. in.<br> 864 sq. in.
anastassius [24]

Answer:

864\ in^{2}

Step-by-step explanation:

The figure is a cube

The surface area of a cube is equal to

S=6b^{2}

where

b is the length side of the cube

In this problem we have

b=12\ in

substitute

S=6(12^{2})=864\ in^{2}


7 0
4 years ago
the sum of three numbers is 207. the second number is 8 times the first, while the third is 3 less than the first, find the numb
pentagon [3]
First number = X
Second number = 8X
Third number = X - 3  

The equation would be
X + (8X) + (X - 3) = 207 

X + (8X) + (X - 3) = 207

X + 8X + X - 3 = 207

10X - 3 = 207

10X = 207 + 3

10X = 210

X = 21

First number = 21
Second number = 8 * 21 = 168
Third number = 21 - 3 = 18

3 0
4 years ago
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