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Phoenix [80]
2 years ago
14

PLEASE HELP WILL GIVE BRAINLIEST

Mathematics
1 answer:
lora16 [44]2 years ago
5 0

Answer:

B. y = 3x + 1

Step-by-step explanation:

We can look at the table like a bunch of values, where (x) is what is inserted into the equation, and (y) is what comes out.

Now, simply insert the (x) values into each equation and see if they work out or not.

y = (1/3)(-1) + 1 does not equal -2, meaning this equation is defunct.

y = 3(-1) + 1 = -2; y = 3(0) + 1 = 1. This must be the equation as it works for the (x) values given. You can try the other equations, but a simple look at them is all you need to prove them false.

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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
A diagonal cross section of a sphere produces which two-dimensional shape?
const2013 [10]

<span>A diagonal cross section of a sphere produces a circle.

Regardless of how the sphere is cut, it will form a circle.

</span>

<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more</span>

4 0
3 years ago
Which of the following contains all of the irrational numbers in the set
horsena [70]

Answer:

d

Step-by-step explanation:

in ''d)'', all the numbers are irrational

3 0
2 years ago
How many dimes equal the value of 6 quarters.show you step​
4vir4ik [10]

Answer:

the answer to this complicated problem is 25

4 0
2 years ago
Read 2 more answers
If y varies directly as x and y = 21 when x = 5, find x when y = 42.
Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: \frac{y}{x} = k

Step 1: solve for k   ⇒  \frac{21}{5} = k

Step 2: plug in the given value and k to solve for the missing value: \frac{42}{x} = \frac{21}{5}

42(5) = 21(x)

\frac{42(5)}{21} = \frac{21(x)}{21}

2(5) = x

10  = x


5 0
3 years ago
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