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Eduardwww [97]
3 years ago
13

A school has 2 computer labs. Each lab has 30 computers. A total of

Mathematics
2 answers:
loris [4]3 years ago
7 0

Answer:

The 4th option (the one you mouse is hovering on in the picture)

Step-by-step explanation:

You start with 30x2 because that shows the amount of computers in the school. Then you subtract 6 for the amount that doesn't work in the whole school.

UNO [17]3 years ago
6 0

Answer:

(2x30)-6

Step-by-step explanation:

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This is so confusing...
Ainat [17]
It's less confusing if you only think about one of them at a time.

A).
Change the whole thing to all inches.
(Multiply the 8-ft by  12inches/foot.)
Then, when you have it all in one number of inches,
multiply that number of inches by  (2.54 centimeters/inch).

B).
1 ounce is the weight of 28.35 grams (on Earth).
Multiply the 300g by  (1 ounce / 28.35 g).

C).
Multiply the liters by (0.264 gallon/liter)
Multiply the km by (1 mile / 1.609 km).
Then you'll have a fraction that actually means
                 (a number of gallons) divided by (a number of miles).
Do the division, and you'll have the gallons per mile.

D).
The area of any rectangle is (length) times (width).
The area of this living room is (13-ft times 14-ft), and that's in square feet.
You know how much 1 square foot of carpet costs.
Just multiply that price by the number of square feet that you need.
6 0
4 years ago
Is ×+4 a factor of p(×)=x^3 -4×^2-17×+60
Vitek1552 [10]

Answer:

Yes, It is a factor

Step-by-step explanation:

<u>Step 1:  Plug in -4 to see if it is a factor</u>

p(-4) = (-4)^3 - 4(-4)^2 - 17(-4) + 60

<em>p(-4) = 0</em>

<em />

<em><u>Since it is 0, that means that it is a factor.</u></em>

<em><u /></em>

Answer:  Yes, It is a factor

8 0
3 years ago
What is the final amount if 1010 is decreased by 6% followed by a further 9% decrease?
maw [93]

Answer:

863.95

Step-by-step explanation:

1010×0.94=949.4

949.4×0.91=863.954

863.95

3 0
4 years ago
Explain how to find the exact value of cos(75°).
DanielleElmas [232]

Answer:

\cos(75 \degree)  =  \cos(45 \degree + 30\degree)  \\  \\  =  \cos(45\degree)  \cos(30\degree)  -  \sin(45\degree)  \sin(30\degree)  \\  \\  = ( \frac{1}{ \sqrt{2} } ).( \frac{ \sqrt{3} }{2} ) - ( \frac{1}{ \sqrt{2} } ).( \frac{1}{2} ) \\  \\  =  \frac{ \sqrt{3} }{2 \sqrt{2} }  -  \frac{1}{2 \sqrt{2} }  \\  \\  =  \frac{ \sqrt{3}  - 1}{2 \sqrt{2} }  \\  \\   =  \frac{0.73205}{2.828427}  \\  \\  = 0.2588

4 0
3 years ago
For which inequality is x = 5 a solution?<br>A x&lt;2<br>B. x&gt;9 <br>C x&lt;18 <br>D. x&gt; 42​
marishachu [46]

Answer:

c

Step-by-step explanation:

because 5 is smaller then 18

7 0
3 years ago
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