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3 years ago

Solve the equation. –9x + 1 = –x + 17 x = –8 x = –2 x = 2 x = 8

Mathematics

2 answers:

Goshia [24]3 years ago

3 0

The Answer is X = - 2

Sophie [7]3 years ago

3 0

Answer:

B :D

Hope you do well on the test :)

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Express this decimal as a fraction. 1.21212121.......

katovenus [111]

I think it's 121212121/100000000 but I'm not sure...

8 0

3 years ago

Help please (will chose brainliest)

goldfiish [28.3K]

Answer:

LEts start with 10^1

If we have positive exponent then we add zeros

10^1= 10

$10^2=100$ (Put 2 zeros because exponent is 2)

$10^3=1000$ (Put 3 zeros because exponent is 3)

$10^4=10000$ (Put 4 zeros because exponent is 4)

$10^5=100000$ (Put 5 zeros because exponent is 5)

For negative exponent , we make a fraction . we put 1 at the top always and number as the bottom

$10^{-1}=\frac{1}{10}$ (Put 1 zero at the bottom because exponent is -1)

$10^{-2}=\frac{1}{100}$ (Put 2 zeros at the bottom because exponent is -2)

$10^{-3}=\frac{1}{1000}$ (Put 3 zeros at the bottom because exponent is -3)

3 0

3 years ago

How do you round the area of a circle with 3.14?

kirill115 [55]

Answer:

(This is a example since you don’t have anything to round to)

Example Answer if the radius is 4 - 50.24

Step-by-step explanation:

Example Radius : 4

Area : 3.14

We have the mulitiply 3.14 times The Example Radius 2 times because The diameter of a circle is 2 times its radius.

( 3.14 x 4 x 4) 50.24

If you know the diameter, it’s a half or 1/2 as large.

Therefore, if the radius was 4, it would be 50.24.

Youre welcome :)

7 0

3 years ago

Find the savings plan balance after 2 years with an APR of 4% and monthly payments of $250. The balance is $ (Do not round until

alexdok [17]

Answer:

$6,506.51

Step-by-step explanation:

Recall that increasing an amount C in x% is equivalent to multiply it by (1+x/100)

As we have 4% APR, the monthly interest would be (4/12)% = 0.04/12

Month 0 (first payment)

$250

Month 1

$250 + 250 \frac{0.04}{12}= 250(\frac{12.04}{12})$

Month 2

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2)$

Month 3

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3)$

Month 24 (2 years)

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24})$

The sum

$1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24}$

is the sum of the first 24 terms of a geometric sequence with common ratio $\frac{12.04}{12}$ which is

$\frac{1-(12.04/12)^{25}}{1-(12.04/12)}=26.02603071$

so, after 2 years the saving balance is

250*26.02603071 = 6,506.50767= $6,506.51 rounded to the nearest cent.

6 0

3 years ago

Plz help me with this !!

Lubov Fominskaja [6]

Answer:

u have to use the almighty formula

7 0

3 years ago

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