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Hitman42 [59]
3 years ago
11

Just please help me I'm done with this work

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
8 0
V = (1/2)(13)(16)(12) cm^3

V = (1/2)(2,496) cm^3

V = 1248 cm^3

melamori03 [73]3 years ago
5 0
We need to find the area of the triangle first.
We have 13 and 12. We multiply them together and divide by 2 to find the area.
13•12=156
156/2=78
We then multiply that number by 16.
78•16=1248

The volume is 1248 cubic centimeters.









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Trevor solved the system of equations below. What mistake did he make in his work?
wariber [46]

2x + y = 5

x − 2y = 10

y = 5 − 2x

x − 2(5 − 2x) = 10

x − 10 + 4x = 10

5x − 10 = 10

<em>add 10 to each side</em>

<em>5x-10+10 = 10 + 10</em>

<em>5x=20</em>

5x = 0    <em>this is the error</em>

He needs to add 10 to each side

7 0
3 years ago
Evaluate the expression for f = -6 and g = -1.<br> fg - f =
Arlecino [84]

Answer:

7

Step-by-step explanation:

Given the information from the question:

fg - f = f \times g - f

Next we can use the order of operations to find the value of the expression.

fg - f =  - 6 \times  - 1 - ( - 1) \\  =  6 - ( - 1) \\  = 6 + 1 \\  = 7

5 0
1 year ago
Pleaassseeeee helpppppp,,,,!!!!!!
Flura [38]
Surface Area (SA) of a Cylinder formula:
SA = 2*pi*r*h+2*pi*r^2
If you fill in the formula:
SA = 2*3.14*2*9+2*3.14*2^2
Simplify:
SA = 6.28*18+6.28*4
SA = 113.04 + 25.12
SA = 138.16 in
I hope I helped 
If its wrong I'm super duper extra sorry!
6 0
3 years ago
A package of aa batteries costs 3.50 plus an additional 6% tax. What is the price after tax?
Fiesta28 [93]
6% tax means 6% of $3.50

Convert 6% to decimal (move decimal 2 spots to the left): 6% ⇒ .06

Multiply 3.50 with .06 = .21 <-- That's .21 cents of 3.50

That means you have to pay an extra 21 cents. Add that to the $3.50 you had to pay.

$3.50 + $0.21 = $3.71 <-- Price after tax
6 0
3 years ago
Read 2 more answers
Evaluate 9P2- need to make a good grade
Svetllana [295]
81, if you mean 9 Squared.
3 0
3 years ago
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