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ch4aika [34]
4 years ago
8

Factor completely. 28 - 7x^2

Mathematics
1 answer:
Studentka2010 [4]4 years ago
6 0

Answer:

−7x^2+28

Step-by-step explanation:

28−7x^2

=28+−7x^2

=−7x^2+28

You might be interested in
Two number cubes are rolled in a board game. What is the probability that both number cubes land on the same number?
allsm [11]
50% chance they will land on the same number and there’s also a 50% chance they won’t.
5 0
3 years ago
Natalie added 20 pieces of candy to a bowl. Two days later, half of the candy in the bowl is gone. If there are 14 pieces left i
Salsk061 [2.6K]

Answer:

8 pieces of candy

Step-by-step explanation:

Take the original amount of candy in the bowl to be x.

It says that 20 pieces of candy were added, therefore there are x+20 pieces of candy in the bowl.

Half of the candy is gone, therefore \frac{x+20}{2} pieces of candy are left in the bowl.

After half of the candy is gone, there are 14 pieces left, so we can say that \frac{x+20}{2} =14

Solve for x:

x+20 = 28

x=8

8 0
3 years ago
Two cars leave towns 360 kilometers apart at the same time and travel toward each other. One car's rate is 12 kilometers per hou
mixer [17]
Let x = speed of the first car

the second car is 12 km slower so the seconds car speed is x-12

 they each drove 2 hours so 1st car = 2x
2nd car = 2(x-12)
 
they drove 360 km
 so you have 2x + 2(x-12) = 360
 solve for x

2x+2(x-12) = 360

2x + 2x-24 = 360

4x-24 = 360

4x = 384
x = 384/4
x = 96

1st car drove at 96 km per hour

slower car drove at 96-12 = 84 km per hour



5 0
4 years ago
Can some help me with for 100%
Dmitriy789 [7]

Answer:

188.4954 cm^2

3 0
3 years ago
Read 2 more answers
Suppose 60% of kids like video games. Predict the number of kids that prefer video games out of a group of 200 kids.
myrzilka [38]

Answer:

120 kids prefer video games

Step-by-step explanation:

60% is .60

multiply .60 by 200 to get your answer.

.60 × 200 = 120

4 0
3 years ago
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