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Harman [31]
3 years ago
8

A wall is to be painted. A small rectangle in the middle of the wall will remain white to use for a projector. Find the area of

the shaded region that will be painted.
The area of the entire wall is ft
The area of the space for the projector is ft
The area of the space to be painted is ft
Mathematics
1 answer:
inna [77]3 years ago
3 0

Answer:

108, 15, 93

Step-by-step explanation:

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Line A: y=-1/2x+3
sashaice [31]
A) For the equation y=- \frac{1}{2}x+3, the slope is - \frac{1}{2}.
Slope-intercept form is y = mx + b, where m is slope and b is the y-intercept. This means that if m=- \frac{1}{2}, the slope is  - \frac{1}{2}.

B) Since this equation is in the same form, you just find what m is equal to.
Since m=2, that's the slope.

For the solution, set y=- \frac{1}{2}x+3 equal to y=2x-4, so it would be put together like this:
y=[tex]- \frac{1}{2}x+3=2x-4\\ -\frac{1}{2}=2x-7\\ 1\frac{1}{2}x=-7\\ x=-4.66667
So your answer is -4.667.
8 0
3 years ago
Due to ever-changing technology, a new XYZ Smartphone decreases in value 20% each year. (a) How much will this $1000 phone be wo
neonofarm [45]

Answer:

1.) $640 2.) 7 years.

Step-by-step explanation:

1000 x .2 = 200      1 yr

1000 - 200 = 800

800 x .2 = 160         2 yrs

800 - 160 = 640

640 x .2 = 128         3 yrs

640 - 128 = 512

ANYWAYS THIS WOULD TAKE TO LONG! SO HERE IS THE ANSWER TO B.

5 0
3 years ago
Scott stood on a 42 in. high chair, then jumped into a 8 in.
Mamont248 [21]

Answer:

8-42 = -34 will be applied

4 0
3 years ago
If cos θ > 0, which quadrant(s) could the terminal side of θ lie?
Sergeeva-Olga [200]

Answer:

I and IV

Step-by-step explanation:

cosine is positive/greater than 0 in quadrants I and IV. Its just a rule of the unit circle.

Can remember by All Star Trig Class

meaning all the trig funtions are positive in quadrant I

sin is positive in II

tan is positive in III

and cos is positive in IV

8 0
3 years ago
Hello"! Need Help!
stealth61 [152]
<h3>⚠ANSWER⚠</h3>

<em><u>↪</u></em><em><u>Given 15 cot A = 8. Find sin A and sec A </u></em>

Hope this helps...☆

4 0
2 years ago
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