Answer:
F(-2)=2
Step-by-step explanation:
F(x)=4x+10
F(-2)
F(-2)=4(-2)+10
-8 +10
F(-2)= 2
Answer:
a. 36°
Step-by-step explanation:
The same figure will reappear when rotated 360°/10 = 36° about the center.
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<em>Comment on the question</em>
The question as worded is nonsense. If the figure is rotated at all, there is not enough information to tell what the angle of rotation might be.
So, we have the area, easy. Multiply each of the answers by 80.
(Hint: You can change the fractions into decimals and do it then. It'll be much easier than trying to multiply it by the fractions.)
25/64=.390625 (I would round this to .39)
25/4=6.25
5/2=2.5
5/8=.625
Which one, when multiplied by 80, gives you 500?
80*.390625=31.25
80*2.5=200
80*.625=50.
Leaving 6.25*80=500. Meaning, 25/4 is your answer.
Dividing means you subtract the exponents. Dividing by a number is the same as changing the sign on the exponent.
x⁰/x² = x⁻² = 1/x²
y⁻³/y⁻¹ = y⁻³⁻⁻¹ = y⁻² = 1/y²
together is 1/x²y², answer B
Answer:
13 and 16.
Step-by-step explanation:
Let the 2 parts be x and y, then:
x + y = 29
x^2 + y^2 = 425
From the first equation y = 29 - x so substituting in second equation, we get:
x^2 + (29 - x)^2 = 425
x^2 + 841 - 58x + x^2 - 425 = 0
2x^2 - 58x + 416
x^2 - 29x + 208 = 0
208 = 2*2*2*2*13
= 16 * 13
So factoring we get:
(x - 13)(x - 16) = 0
x = 13 ,16
So the numbers are 13 and 16.
