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elixir [45]
3 years ago
6

Solve the system:

Mathematics
2 answers:
navik [9.2K]3 years ago
7 0

Answer: D

Step-by-step explanation:

(5) = 4(6) - 19

5= 24-19

5= 5

TRUE

(5) = -3(6) + 23

5 = -18 + 23

5=5

TRUE

seropon [69]3 years ago
3 0

Answer:

<h2>It is D (6,5)</h2>

y = 4x - 19 \\ y =  - 3x + 23 \\  \\ 4x - 19 =  - 3x + 23 \\ 4x + 3x = 23 + 19 \\ 7x = 42 \\ x = 6 \\  \\ y = 4x - 19 \\ y = 4(6) - 19 \\ y = 24 - 19 \\ y = 5 \\  \\ (6.5)

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An airplane must clear a 60-foot pole at the end of a runway 500 yards long determine the angle of elevation at which the airpla
Marat540 [252]

Answer:

2.3 degrees.      

Step-by-step explanation:

Please find the attachment.

We are told that an airplane must clear a 60-foot pole at the end of a runway 500 yards long.

Let us convert 500 yards to feet.

1 yard= 3 feet.

500 yards= 3*500 feet= 1500 feet.

We can see from our attachment pole and runway are in form of a right triangle. The pole is opposite to angle of elevation of plane and length of runway is adjacent.

Since tangent represents the relation between opposite and adjacent of right triangle, So we will use tangent to find angle of elevation that plane must ascend to clear the pole.  

tan(\theta)=\frac{60}{1500}    

\theta=\tan^{-1}(\frac{60}{1500} )

\theta=\tan^{-1}(0.04)

\theta=2.290610042639

Therefore, the airplane must ascend 2.3 degrees to clear the pole.

8 0
2 years ago
Josh has $25 and he wants to buy some movies. He picks one movie that costs $9.99 and two that cost $5.99 each.
vova2212 [387]
He should add exact since money is involved
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A
3 0
3 years ago
Read 2 more answers
Help please And how would you get the answer need asap
Rashid [163]
No the 2 equations are not equal
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4 0
3 years ago
Brad earns $12.75/hr and works 40 hours a week. What is his gross annual income?
professor190 [17]

Answer:

Gross Annual Income:  $26,520

Step-by-step explanation:

Gross annual income is the amount of money made without any taxes or deductions subtracted from the total.  If Brad earns $12.75 per hour and works 40 hours per week, we can first find his weekly income by multiplying the rate by the number of hours per week:

$12.75 x 40 = $510.00

Since Brad earns $510 per week and there are 52 weeks in one year, we can find his gross annual income again by multiply the weekly rate ($510) by the number of weeks in a year (52):

$510 x 52 = $26,520

3 0
3 years ago
Question 8 options:
prisoha [69]

Answer:

Step-by-step explanation:

Based on what you have here as the slope we can set the slope formula equal to 34 using the points (0, 8) and (8, c) to solve for c, then use the points (0, 8) and (a, 5) to solve for a.  

c first:

\frac{c-8}{8-0}=34 and

\frac{c-8}{8}=34 and

c - 8 = 272 s0

c = 280

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\frac{5-8}{a-0}=34 and

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a=-\frac{3}{34}

That seems a little weird, but when you plug those points into the slope formula to solve for the slope, it works out the way it should.

7 0
2 years ago
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