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3 years ago

Please help quick! It is due in 20 min! Please help!

Mathematics

1 answer:

Korvikt [17]3 years ago

3 0

Answer:

Step-by-step explanation:

1. (a + b) (a - b)

2. 2

3. 4.5 or 4 $\frac{1}{2}$ or $\frac{9}{2}$ or if u wanna round up then 5

hope this helps :)

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Please help me grades are do today

11111nata11111 [884]

Answer:

Step-by-step explanation:

$sin=\frac{opp}{hyp}$

$cos = \frac{adj}{hyp}$

$cos^{-1}\left(\frac{45}{51}\right)$

which is 28.07 degree

$sin\left(28.07\right)=\frac{x}{51}$

x= 23.99

23.99+4=h=28

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2 years ago

Kendall brought drinks for the 7th grade end of the year party. All the drinks Kendall brought, 49 of them was cola drinks. if c

Lilit [14]

Divide the number of colas by the percentage that was colas:

49/0.35 = 140

There were 140 total drinks.

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3 years ago

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What is the measure of angle X? Enter your answer as a decimal in the box. Round only your answer to the nearest hundredth. ° tr

klemol [59]

I have attached a diagram of the triangle described.

We can use any of the trigonometric functions to find angle x. Remember, SOH CAH TOA. And since we're finding the angle, we'll need to use an inverse trigonometric function. For this problem, I'll be using the sine function.

sin(x) = 84 / 85

x = sin^-1(84/85)

x = 81.2026 degrees (feel free to round to however many places you need)

Hope this helps!! :)

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3 years ago

The histogram shows the duration, in minutes, of movies in theaters.

neonofarm [45]

The correct answer is:

The median is less than the mean.

Explanation:

This histogram is skewed right; the data "peaks" further to the left than the center.

If a histogram is skewed right, the mean is greater than the median.

This is because skewed-right data have a few large values that increase the mean but do not affect where the exact middle of the data is.

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3 years ago

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If f(x)= 5x + 4 and g(x) = 1/2x find , a) fg(5)

Veseljchak [2.6K]

Answer:

f(g(5)) = 16.5

Step-by-step explanation:

To calculate f(g(5)), evaluate g(5) then substitute the value obtained into f(x)

g(5) = $\frac{1}{2}$ × 5 = 2.5 , then

f(2.5) = 5(2.5) + 4 = 12.5 + 4 = 16.5

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3 years ago

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