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3 years ago

Question: Determine what the constant, coefficient, and variable are in the expression 7-25f.

Mathematics

1 answer:

vova2212 [387]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

<u>Given:</u>

Binomial 7 - 25f

7 = constant, it is a number as a term
25 = coefficient, it is a number which is multiplied by a letter (variable)
f = variable, which is normally identified as a letter, it is degree one

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In five minutes, you observe that the angle of elevation of a hot air balloon, climbing vertically, changes from 25° to 60°. If

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Answer:

379.72 meters

Step-by-step explanation:

At first, the balloon was 300 m away at 25°, so its height can be determined as:

$H_{1} = 300*tg(25)\\H_{1} = 139.89 m$

After 5 minutes, the balloon was at 60°, so its height can be determined as:

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To find the distance traveled by the balloon during that period, simply subtract the second height by the first one:

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3 years ago

An acute angle θ is in a right triangle with cos θ = 9/10 . What is the value of sec θ?

xenn [34]

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... sec(θ) = 10/9

8 0

3 years ago

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Need help. please reply with correct answers!

rjkz [21]

Answer:

a = 1, b = 0 & c = -1;

a = 1, b = 2 & c = 3

Step-by-step explanation:

a = 1, b = 0 & c = -1;

so a + b + c = 1 + 0 + (-1) = 0

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Other possible answers;

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Find the exact value of csc 5pi/6

Leona [35]

Answer:

csc 2 (csc $\frac{5\pi}{6}$ = csc 150 = csc 30 = csc 2)

Step-by-step explanation:

csc $\frac{5\pi}{6}$ is in the 2nd Quadrant where only sin, and csc are positive.

csc $(\frac{5\pi}{6})=csc (\pi -(\frac{5\pi}{6}))=csc(\frac{5\pi}{6})$

but csc $\frac{5\pi}{6}$ = $\frac{1}{sin (\pi/6)} = \frac{1}{sin 30} = \frac{1}{1/2} =2$

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3 years ago