Answer:
(0,-3), (-5,-5)
Step-by-step explanation:
Plug in x and y and see in which case = -15
-2(0)+5(5)= 25 no
-2(0)+5(-3)= -15 yes
-2(-5)+5(-1)= 5 no
-2(-5)+5(-5)= -15 yes
-2(10)+5(-1)= -25 no
-2(-10)+5(7)= 55 no
<h3>
Answer: Choice A) 1/7, 3/7, 4/7, 6/7</h3>
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Explanation:
All of the fractions, for each of the answer choices, has a denominator of 7. This means we can ignore them when it comes to sorting out the fractions. Focus only on the numerators.
- Choice A has numerators 1,3,4,6 in that order from left to right. This is in increasing order (ie smallest to largest), so this is why choice A is the answer.
- Choice B has the numerators 6,4,3,1 in that order. This is from largest to smallest, which is the complete opposite of what we want. Choice B is incorrect.
- Choice C has numerators 1,6,4,3 which is in neither order. Rule this out as well.
- Choice D has numerators 3,4,1,6 and we can rule it out for similar reasoning as choice C.
If you want, you can convert each fraction to decimal form to sort out the decimals that way, then convert back to fraction form.
V=s^3
SA=6s^2
so
125=v
125=s^3
cube root both sides
5=s
A=6(5)^2=6(25)=150 m^2
64=v
64=s^3
cube root both sides
4=s
A=6(4)^2=6(16)=96 m^2
ratio is
150:96=25:16
Log of 2x cube - log x = log 16 +log x
Use the identities!
Log 2x square = log 16x
2x square = 16 x
2x sqr - 16x = 0
2x(x-8) = 0
X = 0 or 8
According to logarithms x can’t be 0 so it’s 8
