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Pachacha [2.7K]
4 years ago
14

I need some help with #13

Mathematics
1 answer:
devlian [24]4 years ago
4 0
A. The area of the paralelogram is base • height so is (4x-2)•(2x-1)= 8x^2. -8x+2
b. X=2
A= 8•4-8•2+2= 32-16+2= 14 in^2
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your recipe calls for 1/2 a pound of potatoes. You use 1/6 of the bag of potatoes. whats the number of pounds per bag
zhannawk [14.2K]
I you use 1/6 of the bag for 1/2 a pound then you need to set up a proportion.

1/6 bag / 1 bag = 1/2 pound / x pounds      Cross Multiply
(1/6)*x = 1/2 pounds * 1 bag Divide by 1/6

Remember: in a 4 level fraction, the denominator inverts and multiplies.


x = {x = }\frac{ \frac{1}{2} }{ \frac{1}{6} } \\ \\ {x =} \frac{1}{2} *  \frac{6}{1} \\ \\{x = }  \frac{6}{2} = 3

3 pounds <<<< answer
8 0
4 years ago
The numerator of a fraction is 9 and the denominator is 6. All of the following numbers are equivalent except ____.
RSB [31]
2/3 Hass to be the answer because the larger number nine would be on top as the numerator. Therefore, I know this without even having to simplify. Hope this helps :-)
5 0
3 years ago
Read 2 more answers
If sinθ = A, find cos(π/2-θ)<br><br> (using trigonometric identities to fine the value)
WARRIOR [948]

Answer:

Cos(π/2 - θ) = A

Step-by-step explanation:

We know that:

Sin(θ) = A

And we want to find the value of Cos(π/2 - θ)

Here we can use the cosine relationship:

Cos(a - b) = Cos(a)*Cos(b) + Sin(A)*Sin(B)

Then:

Cos(π/2 - θ) = Cos(π/2)*Cos(θ ) + Sin(π/2)*Sin(θ)

We know that:

Cos(π/2) = 0

Sin(π/2) = 1

Then:

Cos(π/2 - θ) = Cos(π/2)*Cos(θ ) + Sin(π/2)*Sin(θ) = 0*Cos(θ ) + 1*Sin(θ)

                    = 1*Sin(θ) = A

Cos(π/2 - θ) = A

6 0
3 years ago
What is the solution of √x^2+49=x+5​
Alexandra [31]

Answer:

x=12/5

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Prac
PtichkaEL [24]

Answer:

Yes a number with 3 digits is usually bigger than a number with 2 digits but sometimes if it is a decimal than the decimal can be bigger

8 0
3 years ago
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