Consider the numbers 0, 10, 20, 30, and 40. multiply each by 4 and compare the result to 60 to determine into which of the following intervals the answer to the question "what number can you multiply by 4 and then add 8 to the product to get 60? " should fall.
select the interval into which the answer should fall.
a) 0 to 10
b) 10 to 20
c) 20 to 30
d) 30 to 40

b) 10 to 20

Step-by-step explanation:

You have to multiply each of the given numbers by 4, and add 8 to that result.

So:

And 60 is between the result of 10 and 20, so that's the interval you have to select.

The correct answer is b) 10 to 20

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.