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STatiana [176]
2 years ago
15

Plz help me to answer

Mathematics
1 answer:
Anton [14]2 years ago
6 0

Answer:

H=2  r=1

Step-by-step explanation:

P= 2h+4r + πr = π+8

h= π+8- πr -4r/2

(pls give brainliest if helps!)

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1<br>What is the value of x in the equation 1/3x-2/3=-18?​
Alja [10]

Answer:

x = -52

Step-by-step explanation:

1/3x-2/3=-18

Multiply each side by 3 to clear the fractions

3(1/3x-2/3)=-18*3

x - 2 = -54

Add 2 to each side

x-2+2 = -54+2

x = -52

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Find the volume of a triangular prisms with base height 4 width 7 and height 10. Please hurry!
Dimas [21]

Answer:To calculate the volume of a triangular prism, measure the width and height of a triangular base, then multiply the base by the height by 1/2 to determine the triangle's area. Next, measure the height of the triangular prism and multiply this by the triangle's area to get the volume. I hope that helped a little

Step-by-step explanation:

4 0
3 years ago
NEED HELP ASAP!!!
azamat
The answer is B f(x)= -3(x+1)^2+2
6 0
3 years ago
Please help me now ! Thank you
jarptica [38.1K]
First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now

2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4

At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real. 

Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result. 

For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196

No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.

So x^2 = -4 has no real solutions. Taking the square root of both sides leads to

x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values


5 0
3 years ago
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