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-Dominant- [34]
3 years ago
9

Please help)Simplify: (r – 7)(r + 7)

Mathematics
2 answers:
PtichkaEL [24]3 years ago
5 0

Answer:

Im pretty sure the answer is

C) r^2 - 49

Step-by-step explanation:

Serggg [28]3 years ago
4 0

Answer:

r^2-49

Step-by-step explanation:

r^2+7r-7r-49 || r^2-49

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At what point will 3y=4x-6 and 8x-6y=-30 intercept
tester [92]

Answer:

The lines don't intercept

Step-by-step explanation:

we have

3y=4x-6

isolate the variable y

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y=\frac{4}{3}x-\frac{6}{3}

simplify

y=\frac{4}{3}x-2 -----> equation A

8x-6y=-30

Isolate the variable y

6y=8x+30

Divide by 6 both sides

y=\frac{8}{6}x-\frac{30}{6}

simplify

y=\frac{4}{3}x-5 -----> equation B

Compare equation A and equation B

The slopes are the same and the y-intercepts are different

Remember that

If two lines has the same slope, then the lines are parallel

therefore

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3 0
3 years ago
Which graph is an example of a function?
Artist 52 [7]

Answer:

the graph that represents a function is B

Step-by-step explanation:

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4 0
3 years ago
Molly is converting 2 yards to millimeters. Will the number of millimeters be fewer than or greater than 2?
ololo11 [35]
Greater than.

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7 0
2 years ago
2+2 I thing this is to ez but let see You can
Helen [10]

Answer:

4

Step-by-step explanation:

2 + 2 = 4

In order to really understand this we need to break it down into simple terms.

Basically what we are doing here is adding two things together.

Put it like this, you have two fish, and you get another two fish, you now have four fish.

If you don't understand anything or need me to explain it better please don't hesitate to ask.

7 0
3 years ago
ben has 3 times as many guppies as goldfish.  If he has a total of 20 fish, how  mauy guppies does he have
Nitella [24]
x-the  \ number \ of \ goldfishes \\ 3x-the \ number \ of \ guppy \ fishes \\\\ x+3x=20 \\\\ 4x=20 \\\\ \boxed{x=\frac{20}{4}=5 } \\\\ 3*5\to\boxed{15 \ guppy \ fishes}
7 0
3 years ago
Read 2 more answers
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