Given that r = (7,3,9) and v=(3,7,-9), evaluate r + v. A. (-21,-21,81) B. (10,10,0) C. (21,21,-81) D. (-10,-10,0)
Answers
Answer:
B. (10, 10, 0)
Step-by-step explanation:
Each component of the sum is the sum of corresponding components:
r + v = (7, 3, 9) +(3, 7, -9) = (7+3, 3+7, 9-9) = (10, 10, 0)
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Evaluate the expression. 2x – 19, when x = –11 3 –41 –3 41
Select the equation of the line that passes through the point (2, 6) and is perpendicular to the line x = 4.y = 4 y = 6 x = 6 x = 2
Question ?????????????
Here is a picture of my math problem.
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Answer:
(0, -5)
Step-by-step explanation:
When you move down you subtract the amount from the y-axis.
b. False
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ewidence
k - scale similarities
a,b,c = sides of the triangle
p - perimeter of a triangle
k*a + k*b + k*c = k(a+b+c) = k*p
triangles
a = 3
b = 15
c = 14
triangles 1:2
2a = 2*3 = 6
2b = 2*15 = 30
2c = 2*14 = 28
Answers
3≈33.51032 =33.51 is the answer
Longer Answer: The formula for volume of a sphere is ( 4 * pi * radius^3) / 3. So, when the radius is 2cm, then it would be ( 4 * 3.14 * 2^3) / 3. We have to do the exponents first, so 2 ^ 3 is 2 * 2 * 2 = 8. Then, we solve the rest of the expressions within the bracket, which will give us ( 100.48 ) / 3, and that equals 33.5
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#25 is fairly simple. Plug in -4 and 3 into the equation, and the extraneous root will be the one that does not work.
Extraneous root in this case is positive four since +4≠-4
In this case it's negative 3, since -3≠3
#29 can be turned into a quadratic equation.
Square both sides to get
Then bring the 2x+3 to the other side, setting the quadratic equal to zero.
Factor to find that it's equivalent to
(x-3)(x+1)=0
Therefore x is equal to positive 3 and negative 1. Plug both back into the original equation. Whichever does not work is the extraneous root, and the answer is the one that does.
Extraneous root would be negative 3.
Extraneous root would be positive 1.
Your answers are positive 3 and negative 1.
Extraneous roots are negative 3 and positive 1.
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so since the ratio of red paint to blue paint is 2:4 and you can simplify 2:4 into 1:2 and because 5 liters of paint is used you would have to multiply the 2 from the simplified ratio by 5 so you could get the answer 2*5 and that equals 10
Answers
During a period of deflation, the graph of the consumer price index (CPI) will rise. False
Why is Deflation a problem?
Economists fear deflation due to the fact falling expenses causes a decrease in customer spending, which is a prime thing of economic growth. companies reply to falling charges by slowing down their production, which results in layoffs and revenue reductions. This similarly lowers call for and costs.
What happens when there is Deflation?
Deflation is when purchaser and asset charge lower over time, and purchasing strength will increase. essentially, you may purchase greater items or services the day after today with the equal amount of cash you have today. that is the mirror photograph of inflation, that's the sluggish boom in charges across the economic system.
Learn more about Deflation at brainly.com/question/13562161
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