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just olya [345]
3 years ago
12

What is the equation of a line perpendicular to y=-8 through the point (-2,1)

Mathematics
1 answer:
Semenov [28]3 years ago
6 0

Answer:

y=1/8x+1.25

Step-by-step explanation:

Since it's perpendicular change the slope to the opposite

You have the slope so plug it into the equation y-y1=m(x-x1)

y-(1)=(1/8)(x--2)

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Hmm I’ve done this before but I can’t remember sorry but I will try and think
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3 years ago
Error Analysis Your friend says that the volume of this sphere is 44.58
Maurinko [17]

Answer:

  • the given dimension was used as the radius
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Step-by-step explanation:

The volume of a sphere can be found using the formula ...

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The figure points to a diameter line and indicates 2.2 m. The arrowhead is in the middle of a radius line, making it easy to interpret the dimension as the radius of the sphere.

If 2.2 m is used as the radius, the volume is computed to be ...

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This agrees with your friend's volume, suggesting the diameter was used in place of the radius in the computation.

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The correct volume, using 2.2 m as the diameter, is ...

  V = 4/3π(1.1 m)³ ≈ 5.57 m³

6 0
2 years ago
Tickets to a school dance cost $5. Ninety tickets have already been sold. How many more tickets x must be sold to earn at least
alex41 [277]

Step-by-step explanation:

5x90=450

700-450=250

250/5=50

50 more tickets.

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4 0
3 years ago
What is 12/7simplified ​
Citrus2011 [14]
The anwser to your question is 1 and 5/7
5 0
3 years ago
2 of a dozen eggs are cracked. What percent of the carton is NOT cracked using the percent proportion
levacccp [35]

If 2 of 12 eggs are cracked, then 10 are not cracked.

SO

10/12=5/6=about 0.83

0.83 of total eggs not cracked is also equivalent to 83 percent as asked in the problem :)

6 0
3 years ago
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