Step-by-step explanation:
what ? you cannot do even simplest subtractions ?
what is it you don't understand here ?
how such a function works ?
you take every value for x (the input variable or argument), put it in place of the "x" (this is nothing else than a placeholder for the actual values) and then perform the mathematical operations. y is then the result of that.
x = 0
y = 0 - 7 = -7
the ordered pair of (x, y) is (0, -7)
x = 1
y = 1 - 7 = -6
(1, -6)
x = -3
y = -3 - 7 = -10
(-3, -10)
x = -5
y = -5 - 7 = -12
(-5, -12)
Answer:
A. 26°
Step-by-step explanation:
If ON =OL, then the two triangles are are similar.
The base angles must be equal.
We group the similar terms to obtain:
Divide through by 2 to get:
x=8
Substitute x=8
Answer:
Step-by-step explanation:
Law of Cosines
x = √(40²+12² - 2·40·12·cos(37°)) ≅ 31.3 units
Answer:
The real answer is 6
Step-by-step explanation:
Fairly simple. You know the length and the area, but you don't know the width. So your equation looks like this: 30 x ? = 180. But to figure out the width, you change the position of the numbers in the equation like this:
180 ÷ 30 = ?. Then you solve. 180 ÷ 30 = 6. If you want to double check your answer, you can plug in your answer to your original equation, 30 x 6 = 180.
Hope this helps!
The radius is 5cm
Step-by-step explanation:
The surface area of a sphere is given by:
Here
Given
SA = 100π cm^2
Putting the values in the formula
Taking square root on both sides
The radius is 5cm
Keywords: Surface area, Radius
Learn more about surface area of sphere at:
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