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3 years ago

7a - 17 = 9a + 1 (Finding Common Denominators)

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

8 0

Answer:
3a−17=1

3a=18

a=6

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Which is the equation of a hyperbola centered at the origin with vertex (0, sqrt 12 ) that passes through (2 sqrt 3,6)

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Answer:

y-intercept = a +y^2/12 term in it.

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3 years ago

josh finished 3/5 th part of his painting job. he said he will need 8 more days to finish remaining job. How many days he took i

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3 years ago

Which components are a possible representation of vector w if the magnitude of vector -3w is ||-3w||=15?

Black_prince [1.1K]

Answer:

<-3,4>

<0,-5>

Step-by-step explanation:

|-3w| = 15

3|-w| = 3|w| = 15

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If vector w is represented by <1,-9>

Then |w| = $\sqrt{(1)^{2}+(-9)^{2}}=\sqrt{1+81}=\sqrt{82}\neq5$ .

Therefore this is not possible.

If vector w is represented by <-3,4>

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If vector w is represented by <-5,-3>

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Therefore this is not possible.

If vector w is represented by <0,-5>

Then |w| = $\sqrt{(0)^{2}+(-5)^{2}}=\sqrt{0+25}=\sqrt{25}=5$ .

Therefore this is possible.

(NOTE : if z vector is represented by <x,y> then |z| = $\mathbf{\sqrt{x^{2}+y^{2}}}$ )

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