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pshichka [43]
3 years ago
12

HELP ME ASAP!!! PLEASE

Mathematics
1 answer:
Sloan [31]3 years ago
4 0
B, 190.
First you find the area of the circle (pi times radius squared) however, since you are given diameter, you must find radius by dividing diameter by 2. So, your radius is 9, then you plug it into the formula and you get 254.5. After multiplying this by 0.75 because you only want to find 75 percent of the area, you get the answer of 191m
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Two triangular prisms with the same altitude always have the same surface
Juli2301 [7.4K]
<h3>Answer:   False</h3>

The prisms might have different base areas, which would contribute to overall having different surface areas even if the altitude (aka height) of each prism was the same.

4 0
3 years ago
If f(x)=ax^4-bx^2+x+5 and f(-3)=2, then what is the value of f(3)?
vfiekz [6]
<h3>f(3)=8</h3>

Answer:

Solution given:

f(x)=ax^4-bx^2+x+5 and

f(-3)=2

f(-3)=a(-3)^4-b(-3)^2+(-3)+5

2=81a-9b-3+5

2=81a-9b+2

subtracting both side by 2 and adding 9b

2-2+9b=81a-9b+9b+2-2

9b=81a

now

f(3)=a(3)^(4)-b(3)^(2)+3+5

f(3)=81a-9b+8

substituting value of 81a

f(3)=9b-9b+8

f(3)=8

6 0
3 years ago
I need help with 2 questions in distributive property
Snezhnost [94]

Answer:

i don't know

Step-by-step explanation:

4 0
4 years ago
14 more than the prouduct of the three and nine
Varvara68 [4.7K]
41
3 times 9 is 27
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5 0
3 years ago
Read 2 more answers
Emily is thinking of a number, which she calls n. She finds 1/4 of the number and subtracts 3. Write an expression that represen
ExtremeBDS [4]

Answer:

1/4n - 3

Step-by-step explanation:

1/4 of a number means multiplying 1/4 to n. So we can write 1/4n. Now we write the subtract 3 portion. 1/4n - 3.

6 0
3 years ago
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