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-Dominant- [34]
2 years ago
7

Expand. If necessary, combine like terms (2+x)(2-x)

Mathematics
1 answer:
Anastaziya [24]2 years ago
5 0

Answer:

-x^2+4

Step-by-step explanation:

2*2=4

2(-x)+2(x)=0

x(-x)=-x^2

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In a bag of blue and yellow candies, the ratio of blue candies to yellow candies is 3:5. If the bag contains 60 yellow candies,
antiseptic1488 [7]

Answer:

36 blues

Step-by-step explanation:

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3 years ago
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A parachutist's speed during a free fall reaches 207 kilometers per hour. What is this speed in meters per second? At this speed
Mamont248 [21]
<span>The speed is 57.5 m/s and the parachutist will fall 1150 m in 20 seconds.

Explanation<span>:
We start out with the ratio 207 km/1 hr.

We know that 1 km = 1000 m; this means 207 km = 207*1000 = 207000 m. This gives us 207000 m/1 hr.

We know that 1 hr = 60 minutes, so we have 207000 m/60 min.

We also know that 1 min = 60 seconds, so 60 min = 60*60 = 3600 sec; this gives us 207000 m/3600 sec.

Dividing this, we get 57.5 m/s.

In 20 seconds, the parachutist will fall 57.5(20) = 1150 m.</span></span>
4 0
3 years ago
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f the points (-4, 1) and (2, 1) are the endpoints of a diameter of a circle, where is the center? A) (-7, 1) B) (-1, 1) C) (1, -
Ulleksa [173]

Answer:

B

Step-by-step explanation:

The centre is at the midpoint of the endpoints of the diameter.

Using the midpoint formula, then

centre = ( \frac{-4+2}{2}, \frac{1+1}{2} ) = (- 1, 1 ) → B

4 0
3 years ago
X^2-8xy+16y^2 factor completely
kicyunya [14]
Neato
um
requires some trial and error
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ah hah

what 2 numbers multiply to get 16 and add to get -8
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3 years ago
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Answer:

C

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the middle 50% wold be the numerical values in the actual box part of the box plot.

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3 years ago
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