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2 years ago

Find the value of x and y

Mathematics

1 answer:

Westkost [7]2 years ago

3 0

Answer:

3√15

Step-by-step explanation:

x=y

x^2+x^2 = 9*30

2x^2 = 270

x^2 = 9*15

x = y = 3√15

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2) simplify the expression completely assume (x > 0)

Sati [7]

Answer:

Step-by-step explanation:

the 2 square root terms can be combined under one large square root.

and the general multiplication factor of 2 remains on the outside.

2×sqrt(24x³ / 3x) = 2×sqrt(8x²) = 2×sqrt(4×2x²) =

2×2×sqrt(2x²) = 2×2×x×sqrt(2) = 4x sqrt(2)

6 0

2 years ago

If h(x) is the inverse of f(x), what is the value of h(f(x))?.

Marysya12 [62]

To answer the question above, make use of one of the definitions of the inverse functions. If h(x) and f(x) are inverses of each other, then applying the operation, h(f(x)) will give back the value of the initial value. Therefore, the answer is x.

7 0

2 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST!!!

Basile [38]

I have returned!

36 can technically be either A or B, although A works better. The workers are trying to see which type of vegetables sell better, and it’s easier to see which bar is taller rather than which slice is bigger.

37 would be the median, or the middle of all the values. The median is 30 (two smaller and two bigger values), while the range is 27 (32-5, range of values), the mode is 5 (the value that occurs the most), and the mean is 20.6 (average of all values). The median is the only value larger than 30, so this would be the best one to tell his parents.

5 0

3 years ago

If four tires can be changed in 3/4 of an hour gow long would it take to change 19 cars

kobusy [5.1K]

Answer:

14.25 hours

Step-by-step explanation:

Four tires = 3/4 of an hour

=> 1 car = 3/4 of an hour

=> 19 cars = ?

=> If 1 = 3/4

=> 19 = 3/4 x 19

=> 3/4 x 19

=> 57/4

=> 14.25 hours

So, it would take 14.25 hours for 19 car's tires to be changed.

5 0

2 years ago

Rose has a playlist with 40 rock songs and 28 country songs. What is the ratio of country songs to rock songs on the playlist?

cupoosta [38]

The answer is 10:7, 10/7, 10 to 7. Whichever it's asking for. As long as you know the ratio is 10 rock songs to 7 country songs.

This problem can be a simple fraction simplification problem. Here's what I mean:

So, we have 40 rock songs and 28 country songs. Let's put that into a fraction:

 $\frac{40}{28}$

To simplify this as much as possible, all we have to do is find the greatest common multiple and divide it by both numbers. the GCF is 4, so all you have to do is divide 40 by 4 and 28 by 4 to get your ratios.

I hope this helped!!

7 0

3 years ago

Read 2 more answers