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lys-0071 [83]
3 years ago
6

Find the angle of x and y

Mathematics
1 answer:
kow [346]3 years ago
4 0
It is always a 90 degree angle when your dealing with right angles.
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The quadratic function y = –10x2 + 160x – 430 models a store’s daily profit (y) for selling a T-shirt priced at x dollars. What
Stels [109]
Daily profit, y, as a function of T-shirts sold, x, is
y = -10x² + 160x - 430

In order to generate $50 in daily profits, the number of T-shirts sold is determined by solving the equation
-10x² + 160x - 430 = 50

Divide through by -10.
x² - 16x + 43 = -5
x² - 16x + 48 = 0

Answer:
This quadratic equation can be solved by factorization.

Explanation:
Note that
48 = 4 x 12, and
4 + 12 = 16
Therefore
x² - 16x + 48 = (x - 4 )(x - 12 ) = 0
The solutions are
x - 4 = 0  => x = 4, and
x - 12 = 0  => x = 12


7 0
4 years ago
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Angelo is trying to save up to buy the new iPhone 11. He has $40 in his wallet. He decides to shovel snow off driveways for $30
rewona [7]
The equation that best models this situation would be: y=40+30x
5 0
4 years ago
Read 2 more answers
Help me with this quick pleaseeeee
melisa1 [442]

Answer:

D' = ( 1 , -1 )

Step-by-step explanation:

2 times 1/2 = 1

-2 times 1/2 = -1

hope this helps ^^

3 0
3 years ago
9. Which equation could be used to find the area of the shaded triangle below?
zmey [24]

Answer:

A. 1/2*b*h

Step-by-step explanation:

This is the area of triangles

4 0
3 years ago
Evaluate 0.035×1.02/0.00015 leaving your answer in standard form
denis-greek [22]
0.035 x 1.02 is equal to 0.0357. 0.0357 divided by 0.00015 is equal to 238.
3 0
3 years ago
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