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lianna [129]
3 years ago
15

True or False: When working at a computer, place a bright light so that it faces the computer screen and produces a glare.

Mathematics
2 answers:
morpeh [17]3 years ago
4 0
False. you will not see very well. I try it one time trust me
andrezito [222]3 years ago
3 0
True ,When working at a computer, place a bright light so that it faces the computer screen and produces a glare.
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Solution of the equation<br> 3x/5+1 = 4x/15+7
Inessa05 [86]

Answer:

x=18

Step-by-step explanation:

\frac{3x}{5} +1=\frac{4x}{15} +7

\frac{3x}{5} -\frac{4x}{15} =7-1

\frac{9x}{15} -\frac{4x}{15} =6

5x/15=6

5x=90

x=18

6 0
3 years ago
The ceiling of Katie’s living room is a square that is 15 ft long on each side. To decorate for a party, she plans to hang crepe
goldfiish [28.3K]

I think that 3 rolls is wrong and that 6 rolls is right. If you create a 15 by 15 square and draw two lines through the center that connect to the opposite corner, you'll be able to use the Pythagorean Theorem.


Perimeter: 15+15+15+15=60ft.


Length of Line from Corner to Corner:

(15)(15)+(15)(15)=C^2

225+225=C^2

450=C^2

21.2=C

21.2(2)= 42.4ft.

42.4ft.+60ft.= 102.4ft.

102.4ft. divided by 20ft. = 5.12 = <u>6 rolls</u>



8 0
3 years ago
Evaluate the expression when x=10, y=−2, and z=−5.
Vlad [161]

\frac{ -  {x}^{2} + 6z }{y}

if x=10 y=-2 and z=-5 then...

\frac{ { - 10}^{2}  + 6 \times  - 5}{ - 2}

we solve this to get...

<em>65</em>

therefore the answer to your question would be 65

hope this helped-have a good day bro cya)

8 0
2 years ago
Write and solve the equations. A number y is five less than thirteen.
Genrish500 [490]

We can follow the following steps to make an equation and solve it.

Step 1:

five less than 13 means we have to subtract 5 from 13

so it becomes 13-5

Step 2:

A number y is five less than thirteen.

Now in algebraic expressions, "is" stands for "="

So we have:

y=13-5

Step 3:

Solving the equation to find y.

y=13-5

Subtracting 5 from 13, we get :

y=8

Answer:

For the given equation the solution is y=8.

4 0
3 years ago
A tree has circumference of 98 inches. Find the area of a circle with that circumference.
dsp73

Answer:

7542.96

Step-by-step explanation:

8 0
2 years ago
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