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rjkz [21]
3 years ago
15

Plsss help explain I have an exam later and I need to understand this

Mathematics
1 answer:
natima [27]3 years ago
4 0

Answer:

Option C

Step-by-step explanation:

The formula for calculating the slope of 2 points is \frac{y^{2-}y^{1}  }{x^{2}-x^{1}  }

(-9, -10) and (-2, -5)

Slope = \frac{-5-(-10)}{-2-(-9)} =\frac{5}{7}

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Zack wants a new skateboard that costs $98. He has a coupon for 20% off the original price. The sales tax is 6%, what is the fin
svet-max [94.6K]

The final cost of skateboard will be $83.10

Step-by-step explanation:

Given,

Cost of skateboard = $98

Coupon = 20% off

Amount of discount = 20% of cost of skateboard

Amount\ of\ discount=\frac{20}{100}*98\\\\Amount\ of\ discount=\frac{1960}{100}\\\\Amount\ of\ discount=\$19.6

Cost of skateboard after discount = Cost of skateboard - Amount of discount

Cost of skateboard after discount = 98 - 19.6 = $78.4

Sales tax = 6%

Sales tax amount = 6% of discounted price

Sales\ tax\ amount=\frac{6}{100}*78.4\\\\Sales\ tax\ amount=\frac{470.4}{100}\\\\Sales\ tax\ amount=\$4.70

Final cost of skateboard = Discounted price + Sales tax

Final cost of skateboard = 78.40+4.70 = $83.10

The final cost of skateboard will be $83.10

Keywords: sales tax, addition

Learn more about addition at:

  • brainly.com/question/9533500
  • brainly.com/question/9527632

#LearnwithBrainly

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3 years ago
What is the solution of log2x − 6 (256) = 4?
timama [110]
So D x= 5 is the right answer

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3 years ago
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two circles are externally tangent to each other. One circle has a diameter of 62 yards and the distance between the centers of
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Answer:

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Step-by-step explanation:

Let circle A be the circle with the 62 yard diameter

Let circle B be the circle whose diameter we are trying to solve for.

  • Externally tangent circles are circles which touch each other and share a common external tangent.
  • Circle A has a tangent of 62 yards and thus a radius ( half the diameter) of 31 yards.
  • The distance between the centers of the 2 circles is 85 yards. If you subtract the radius ( distance from the center of the circle to its circumference) of circle A then we'll only be left with the radius of circle B.
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Answer:

9/25x

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3/5/x ×12/20

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36/100x

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