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castortr0y [4]
3 years ago
14

How do I solve this problem (I did the graph)

Mathematics
1 answer:
Andrej [43]3 years ago
3 0
C = - 1/2t + 6
The equation usually looks like this

C = k*t + n

If t = 0 than

C = n (from the table we see that C is 6 if t = 0) than

N = 6 too

For t = 2 and c = 5 we have the equation

5 = 2k + 6
2k = -1
K = -1/2
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100 POINTS + BRAINLIST
mojhsa [17]

Problem 1

Since point P is the tangent point, this means angle OPT is a right angle

angle OPT = 90 degrees

Let's use the Pythagorean theorem to find the missing side 'a'

a^2 + b^2 = c^2

a^2 + 7^2 = 12^2

a^2 + 49 = 144

a^2 = 144 - 49

a^2 = 95

a = sqrt(95)

a = 9.7467943

a = 9.7

----------------

Let's use the sine and arcsine rule to find angle y

sin(angle) = opposite/hypotenuse

sin(y) = 7/12

y = arcsin( 7/12 )

y = 35.6853347

y = 35.7

The value of y is approximate. Make sure your calculator is in degree mode. Arcsine is the same as inverse sine or \sin^{-1}

====================================================

Problem 2

Focus on triangle OHP. This may or may not be a right triangle. The goal is to test if it is or not.

We use the converse of the Pythagorean theorem to check.

Recall that the converse of the Pythagorean theorem says: If a^2+b^2 = c^2 is a true equation, then the triangle is a right triangle. The value of c is always the longest side. The order of a and b doesn't matter.

In this case we have

  • a = 7
  • b = 13
  • c = 16

Which leads to

a^2 + b^2 = c^2

7^2 + 13^2 = 16^2

49 + 169 = 256

218 = 256

We get a false equation at the end, since both sides aren't the same number, which means the original equation is false.

We don't get a^2 + b^2 = c^2 to be true, therefore this triangle is not a right triangle.

Consequently, this means angle OPH cannot possible be 90 degrees (if it was then we'd have a right triangle). Therefore, point P is not a tangent point.

You follow the same basic idea for triangle OQH and show that point Q is not a tangent point either. Or you could use a symmetry argument to note that triangle OPH is a mirror reflection of triangle OQH over the line segment OH. This implies that whatever properties triangle OPH has, then triangle OQH has them as well for the corresponding pieces.

7 0
2 years ago
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Solve each equation. #8. 8z = 112
Lynna [10]
#8 Z=14
#9 D=98
#10 F=622
# 11 A=27
I hope this helps!!
6 0
2 years ago
Ignacio is going on vacation. He needs to drive 520 miles in 8 hours. What is his average speed in miles per hour?​
Gnom [1K]

Answer:

65 miles per hour

Step-by-step explanation:

520 divided by 8

8 0
2 years ago
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Identify the domain and range of each relation. Use a mapping diagram to determine whether the relation a function.
Xelga [282]

Answer:

Domains- 6, 5, 1, 7

Ranges- -7, -8, 4, 5

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A ski patrol unit has seven members available for duty, and two of them are to be sent to rescue an injured skier. In how many w
ikadub [295]

Answer:

21

Step-by-step explanation:

7C2 = 21

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