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Reil [10]
3 years ago
6

How can I tell if this shows direct or inverse variation? x= y + 2

Mathematics
1 answer:
Naddik [55]3 years ago
6 0

-- If the vriation is direct, then doubling 'y' will cause 'x' to double.

-- If the varition is inverse, then doubling 'y' will cause 'x' to shrink by 1/2.


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Which is equivalent to sqrt x^10<br> A. X-5<br> B. X -1/5<br> C. X sqrt 10<br> D. X 1/5<br> E. X^5
Lesechka [4]
<h3>Answer:  E) x^5</h3>

\sqrt{x^{10}} = x^5

=====================================================

Explanation:

We simply take half of the exponent 10 to get 5. This applies to square roots only.

So the rule is \sqrt{a^b} = a^{b/2}

A more general rule is

\sqrt[n]{a^b} = a^{b/n}

If n = 2, then we're dealing with square roots like with this problem. In this case, a = x and b = 10.

5 0
3 years ago
Read 2 more answers
See figure in triangle PQR,ANGLE PQR=90°,segQS seg PR find x,y and z
e-lub [12.9K]

Answer:

x=4√5

y=12

z=6√5

is your answer look it once

3 0
2 years ago
What is the length of a diagonal of a square with a side of 8
zhannawk [14.2K]

diagonal is sqrt of (s^2 x 2)


8^2 = 64

64*2 = 128

sqrt(128) = 11.3137

 round answer as needed

3 0
3 years ago
1.Which expression is equivalent to 3(k x k x k)? Show your work
zhuklara [117]

Answer:

3 k^3

Step-by-step explanation:

3(k x k x k)

k*k*k = k^3

3(k x k x k) = 3 k^3

5 0
2 years ago
(1.)What is the value of 35−3m , when m = 4?
Len [333]
(1.) 35-3m
m= 4

35-3m
= 35-3(4)
= 35-12 (do the multiple/division first before doing the addition/subtraction)
= 23

C. 23

(2.) 1 + x ÷ 5
x = 80

1 + x ÷ 5
= 1+80÷5
= 1+16
= 17

(3.) mx-y
m=5, x=3, and y=8

mx-y
= 5(3)-8
= 15-8
= 7

(4.) 3a+15+bc−6
a=7, b=3, and c=15

3a+15+bc-6
= 3(7)+15+3(15)-6
= 21+15+45-6
= 75
4 0
3 years ago
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