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3 years ago

If x divided by 9 = 1, how do you know what x is

Mathematics

2 answers:

padilas [110]3 years ago

6 0

X/9=1

Multiply both sides by 9. So x=9.

Vlada [557]3 years ago

3 0

Well we have $\frac{x}{9}$ and if it =1 we already know that x = 9.

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Answer the following.

Oksana_A [137]

Answer:

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1 year ago

Simplify the expression. Write your answer using only positive exponents:7^6 x 7 x 7^-4

svetoff [14.1K]

The problem is asking you to simplify the exponents. When you multiply two or more powers with the same base, the exponents can be added and subtracted. In this case, the base is 7.

$7^6*7*7^{-4}$

7 can also be written as $7^1$ .

$7^6*7^1*7^{-4} = 7 ^{(6+1-4)} = 7^3$

The answer would be 7³ if you kept the exponent, or 343 if you simplified further.

5 0

3 years ago

The circle given by x^2+y^2-6y-12=0 can be written in standard form like this: x^2+(y-k)^2=21 What is the value of k in this equ

sweet [91]

Answer:

The value of k =3

Step-by-step explanation:

$x^2+y^2-6y-12=0$ We need to solve this equation to become in standard form to find the value of k.

$x^2+y^2-6y-12=0\\x^2+y^2-6y = 12\\(x)^2 +(y^2-2(y)(3)+(3)^2) = 12 +(3)^2\\(x)^2+(y-3)^2 = 12+9\\(x)^2 +(y-3)^2 = 21$

The given standard form is:

$x^2+(y-k)^2=21$

Comparing it with $(x)^2 +(y-3)^2 = 21$

The value of k =3

3 0

2 years ago

Read 2 more answers

Solve for h.<br><br> –0.62 + 8.35 + 3.9h = –6.55 + 1.1h

stepan [7]

Answer:

$- 0.62 + 8.35 + 3.9h = - 6.55 + 1.1h \\ \\ 3.9h - 1.1h = - 6.55 + 0.62 - 8.35 \\ \\ 2.8h = - 14.28 \\ \\ h = \frac{ - 14.28}{2.8} \\ \\ h = \frac{ - 142.8}{28} \\ \\ h = - 5.1$

I hope I helped you^_^

8 0

3 years ago

Help me with this please!!

Mamont248 [21]

Answer: (2,7)

Midpoint formula = ( $\frac{x1,x2}{2}$ , $\frac{y1,y2}{2}$ )

1 + 3 / 2 = 2

5 + 9 / 2 = 7

7 0

3 years ago