2 years ago

Pleaseeee help meeee

Mathematics

1 answer:

yan [13]2 years ago

4 0

Don’t really know if you still need help

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ivolga24 [154]

Sorry don’t focus on my comments because it say to answer two people comment before i ask questions.

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1 year ago

140 subtracted from the square of a number the result is three times the number find the negative solution

natima [27]

Answer:

$Suppose~that~the~number~is~x.\\According~to~question,\\x^2-140=3x\\or, x^2-3x-140=0\\From~the~quadratic~formula,\\x = \frac{-(-3)+\sqrt{(-3)^2-4(1)(-140)} }{2(1)} ~and ~x= \frac{-(-3)-\sqrt{(-3)^2-4(1)(-140)} }{2(1)} \\or, x = \frac{3+\sqrt{9+560} }{2}~and~x=\frac{3-\sqrt{9+569} }{2}\\or, x = \frac{3+\sqrt{569} }{2}~and~x=\frac{3-\sqrt{569} }{2}\\So,~the~required~negative~number~is~\frac{3-\sqrt{569} }{2}.$

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2 years ago

HELP PLEASE IM STUCK

Anarel [89]

Answer:

y°= 51.30°

Step-by-step explanation:

Apply the formula for tangent of an angle

Tan Ф = opposite side length/adjacent side length

Tan y= 10/8

Tan y= 1.25

y° = tan⁻(1.25) = 51.34°

To the nearest tenth y°= 51.30°

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2 years ago

Demand is in elastic if elasticity is?

n200080 [17]

It is equal to 0..... it is

Step-by-step explanation:

yes

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2 years ago

Vashawn earns $50 a week less than

rjkz [21]

Answer:

$400

Step-by-step explanation:

450-50=400 50 less than 450 is 400

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2 years ago