Answer:
6 years
Step-by-step explanation:
Convert feet to inches: 3 feet = 36 inches, 7 feet = 84 inches
Set two equations equal to each other:
First equation, Type A has a slope of 12 (grows 12 inches per year) and a y-intercept of 36 (it starts 36 inches (or 3 feet) tall)
Second equation, Type B has a slope of 4 (grows 4 inches per year) and a y-intercept of 84 (starts at 84 inches (or 7 feet) tall)
12x + 36 = 4x + 84
subtract 36 from both sides
12x = 4x + 48
subtract 4x from both sides
8x = 48
divide by 8 on both sides
x = 6
It will take the tree types 6 years to be the same height
Hope that helps!
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Given Information
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Square Area = 156.25m²
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Formula
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Area = Length x Length
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Find Length
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156.25 = Length x Length
156.25 = Length²
Length² = 156.25
Length = √156.25
Length = 12.5
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Formula
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a² + b² = c²
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Find Diagonal
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12.5² + 12.5² = c²
c² = 156.25 + 156.25
c² = 312.5
c = √312.5
c = 17.68m (nearest hundredth)
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Answer: The diagonal length is 17.68m
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Rewrite it in the form a^2 + 2ab + b^2, where a = 2x and b = 3
(2x)^2 + 2(2x)(3) + 3^2
Use the Square of Sum: (a + b)^2 = a^2 + 2ab + b^2
<u>(2x + 3)^2</u>
Answer: On her math test, Elliana gets 6 questions wrong, or 15% of the total questions. How many questions are on the test?
Esplaination: She has 40 questions on the test because she has 40%/100 or 2/5 20x5=100 and 2x20=40
BTW the question is made up and goes togethetr with the bottom.
Answer:
The second one.
Step-by-step explanation:
Both intercept twice at 0 and -4.
