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eimsori [14]
3 years ago
7

Use the proportion below to determine 30% of 20.

Mathematics
1 answer:
mestny [16]3 years ago
6 0

Answer:

x=6

Step-by-step explanation:

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Given the equation y = 3x − 4, what is the value of y when x = 4?
Marat540 [252]

Answer:

C) 8

Step-by-step explanation:

y=3*4-4

y=12-4

y=8

5 0
3 years ago
A retailer who sells backpacks estimates that by selling them for x dollars each, she will be able to sell 100−x backpacks each
zvonat [6]

Answer:

x = 50

R = $2500

Step-by-step explanation:

Given in the question a quadratic equation,

−x² + 100x

To find the selling price, x, which will give highest revenue, y, we will find maximum value of parabola curve −x² + 100x

The value of -b/2a tells you the value x of the vertex of the function

−x² + 100x

here a = -1

        b = 100

Selling price = -(100)/2(-1)

                    =   50

 

R = −(50)² + 100(50)

  = 2500

8 0
4 years ago
Type the correct answer in each box. Consider the sum of cubes identity: a3 + b3 = (a + b)(a2 − ab + b2). For the polynomial 8x3
zhuklara [117]

Answer:

a = 2x, b = 3.

Step-by-step explanation:

8x^3+27 = (2x)^3 + 3^3

a = 2x and b = 3.

We can cube root 8x^3 getting 2x and cube root 27 getting 3.

4 0
3 years ago
Someone please! Check the answer twice! I just want one wrong and that’s it please! NO FILES I SWEAR IF SOMEONE ADDS A FILE THEI
MakcuM [25]

Answer:

x = 55, because if you look the whole entire bar is 180° in total but you dont have to worry about that because that's not what the question is wanting you to look at, If you look really close there is a half and half on both sides so that means there is a 90° angle so you would have to take 90-35 and that is what gives you your missing angle which is 55.

5 0
3 years ago
Two square are congruent ,if they have same ______​
OverLord2011 [107]

Two squares are congruent if they have the same side length.

3 0
3 years ago
Read 2 more answers
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