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2 years ago

I really need help with this problem

Mathematics

1 answer:

larisa [96]2 years ago

6 0

Answer:

(g◦f)(-6) = -9

Step-by-step explanation:

(g◦f)(-6) means g(f(-6))

Put the number where the variable is and evaluate.

f(-6) = 3/2(-6) +5 = -9 +5 = -4

g(f(-6)) = g(-4) = 7 -(-4)² = 7 -16 = -9

Then ...

(g◦f)(-6) = -9

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Find the value of x. Write it as a decimal.

makkiz [27]

Answer:

68.5

Step-by-step explanation:

Arc ABE = 360 - 2x

Arc AE = 2x

half the difference between the two arcs is 43

43 = $\frac{1}{2}$ [360 -2x - (2x)]

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2 years ago

What is the y-intercept of the line y = 20x?

OlgaM077 [116]

Answer:

Step-by-step Explanation

$y = 20x \\ \\ y = 20x + 0 \\ \\ equating \: it \: with \\ y = mx + b \\ \\ b = 0 \\ \\ y - intercept \: = 0$

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2 years ago

Read 2 more answers

Mr. Williams can grade 50 essays in 7 hours. His assistant, Mr. Wilfred, can do the same job in 14 hours. His other assistant, M

Elza [17]

Answer:

13.44 or 13 11/25 hours

Step-by-step explanation:

First use this format: number of essays/hours

- they are asking if all three work together, how many hours would it take, so this means addition:

50/7 + 50/14 + 25/6 = 200/x

Second, solve:

- least common multiple: 42

300/42 + 150/42 + 175/6 = 200/x

625/42 = 200/x

- cross-multiply

625x = 8,400

x = 336/25 = 13 11/25 = 13.44 (any one of these answers would work)

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3 years ago

The lines 6y+2=12x+4 and 4y+12=2x-8 are: a) parallel.

KatRina [158]

d) neither parallel or perpendicular

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3 years ago

Ms. Peters drove from her home to the park

worty [1.4K]

It takes 15 minutes for Ms. Peter to drive from park to her home

Given :

from her home to the park at an average speed of 30 miles per hour and

returned home along the same route at an average speed of 40 miles per hour

it takes 20 minutes to travel

Convert 20 minutes in to hour (divide by 60)

20 minutes = 1/3 hour

We know that distance = speed x time

From home to park, distance = $speed \cdot time =30 \cdot \frac{1}{3} =10 miles$

So , distance between home and park is 10 miles

Now we calculate the time taken to return from park to home

$time taken =\frac{distance}{speed} =\frac{10}{40}=\frac{1}{4}\\$

Time taken is 1/4 hours. Convert it into minutes by multiplying by 60

$\frac{1}{4} \cdot 60=15$

So it takes 15 minutes for Ms. Peter to drive from park to her home

Learn more : brainly.com/question/18839247

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2 years ago