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natulia [17]
4 years ago
14

Use the intersect method to solve the equation. x² - 1 = -x²+7

Mathematics
1 answer:
r-ruslan [8.4K]4 years ago
5 0

Answer:

x= 2,-2

Step-by-step explanation:

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What is the common difference of an arithmetic sequence defined by the formula an=6n+3?
Olenka [21]

The best way to solve this would be by the use of a table.

x) 1 2 3 4

y) 9 15 21 27

As you can see, the y value increases by 6 each time. Therefore d=6 or the common difference is 6

8 0
3 years ago
Read 2 more answers
Work out 5^-2 x cube root of 8<br><br> Answer in decimal form please.
Ira Lisetskai [31]

Answer:

0.08

Step-by-step explanation:

{5}^{ - 2}  \times  \sqrt[3]{8}  \\  \\  =  {5}^{ - 2}  \times  \sqrt[3]{ {2}^{3} }  \\  \\  =  \frac{1}{ {5}^{2} }  \times 2 \\  \\   = \frac{1}{25}  \times 2 \\  \\  =  \frac{2}{25} \\ \\ =0.08

5 0
3 years ago
Mr.brown can type 80 words in two minutes. how many words can he type in 40 minutes?
Anna11 [10]

Answer:

1600

Step-by-step explanation:

We can setup a ratio in terms of words per minute.

Mr. Brown can type 80 words in 2 minutes, so our ratio looks like this:

40:2

In order to find how many words he can type in 40 minutes, we must set the minutes side of our ratio to 40. In order to do that, we must multiply our minutes side by a factor that makes it equal 40, and then multiply the words side by the same factor. We can divide 40 by 2 to figure out the factor, which is 20. Since the factor is 20, we must multiply it by the words side to figure out how many words he types in 40 minutes, which is 20 · 80 = 1600 words.

5 0
3 years ago
Write the standard equation of a circle with center (-4 0) and radius 3 brainly
den301095 [7]
(x-4)^2+(y-0)^2=3^2 is the answer
8 0
3 years ago
Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.
klemol [59]

Answer: 148.5


Step-by-step explanation:

well there is no real question here but cody is 165 which means you have to multiply that by 10% or 0.10 which gives you 16.5 and subtract that from the total

4 0
3 years ago
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