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anzhelika [568]
3 years ago
13

Which expression is equivalent to (r^-7)^6?A: r^42B: 1/r^42C: -7r^6D: 1/r​

Mathematics
1 answer:
cricket20 [7]3 years ago
6 0

Answer:

B

Step-by-step explanation:

(r^-7)^6 = r^-42 = 1/r^42

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$1 = £0.73. Change $346 into £
svlad2 [7]

Answer:

£252.58

Step-by-step explanation:

$346 × £0.73/$1 = £252.58

Please rate!! I hope this helps!!

4 0
2 years ago
What is the equation of the following line written in slope-intercept form -2/3 and -1/-4? y = -11x - 7 y = -7x + 11 y = -7x - 1
Snowcat [4.5K]

Answer:

y=-7x-11

Step-by-step explanation:

Given:

The two points on the line are (-2,3) and (-1,-4).

The slope of the line joining two points (x_{1},y_{1}) and (x_{2},y_{2}) is given as:

Slope,m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Here, x_{1}=-2,y_{1}=3,x_{2}=-1,y_{2}=-4

∴ m=\frac{-3-4}{-1-(-2)}=\frac{-7}{-1+2}=\frac{-7}{1}=-7

Equation of line with a point (x_{1},y_{1}) and slope m is given as:

y-y_{1}=m(x-x_{1})

Plug in -2 for x_{1}, 3 for y_{1} and -7 for m. This gives,

y-3=-7(x-(-2))\\y-3=-7(x+2)\\y-3=-7x-(7\times 2)\\y-3=-7x-14\\y=-7x-14+3\\y=-7x-11

Therefore, the equation of the line in vertex form is y=-7x-11.

4 0
3 years ago
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.
icang [17]

Answer:

D. temperature(minutes), or t(m)

Step-by-step explanation:

Based on the information given, only the temperature of the coffee and the amount of minutes it sits is involved. This means we can eliminate choices "A," and "B."

When something depends on another, it's outside of the parenthesis. So in this case, the temperature depends on the amount of minutes it sits on the desk, making the temperature outside of the parenthesis.

3 0
3 years ago
Options <br> A)117<br> B)39<br> C)3<br> D)63
hichkok12 [17]

Answer:

B. 39

Step-by-step explanation:

3x=117divided by 3=39

4 0
3 years ago
Distribute and Simplify: (p + 3)5
Tanzania [10]

Answer:

5p+5

Explanation:

5(p+3)

(5*p)+(5*3)

5p+5

4 0
3 years ago
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