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2 years ago

If sin 49° is approximately 3/4, which is closest to the length of the of NO ?

Mathematics

1 answer:

tiny-mole [99]2 years ago

6 0

Answer:

75 meters.

Step-by-step explanation:

In this case, you are trying to find side length NO. In accordance to SOH CAH TOA, you can use a sine function to find the missing side length, since you are given the hypotenuse.

sin(49) = x / 100

x = sin(49) * 100

x = 0.7547095802 * 100

x = 75.47095802

So, the closest answer would be 75 meters.

Hope this helps!

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Angle MNO is formed by segments MN and NO on the following coordinate grid:

Eva8 [605]

Answer:

I am 90% sure that the answer is M'N'O' is 90*

Step-by-step explanation:

A line segment MN is shown as M = -1,1 and N= -5,4 this makes a diagonal line across the grid. Another line segment NO is shown with O as ordered pair negative 1, 4. Angle MNO is rotated 90 degrees counterclockwise about the origin to form angle M′N′O′. this is where the angles meet, Rotating the shape (or the angles) does not change the degree of the angle of the shape. I am 99% sure that an 90* angle would be formed. but im just in middle school so what do i know?

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2 years ago

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The heights of the students in a class are (in inches) 60, 72, 56, 57, 74, 61, 64, 63, 66, 56, 72, 72, 71, 74, 61

Alexandra [31]

Answer:

There is a 11% chance that someone 5 foot 6 inches would get chosen.

Step-by-step explanation:

5*12=60

60+6=66

there are 19 numbers

66/19=.105263

you would then round up the tenths place due to the value of the thousandths place being above 5.

4 0

3 years ago

What is the length of AB? Round your answer to the nearest

const2013 [10]

23’3 because I went over the test and I got it correct I’m pretty sure (sorry if I’m wrong I just went with the internet :()

8 0

3 years ago

Solve using elimination.<br> 5x - 4y = -10<br> 5x - 5y = -5

jolli1 [7]

Answer:

(x,y) = (-6,-5)

Step-by-step explanation:

If you need the explanation let me know.

4 0

3 years ago

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The monthly worldwide average number of airplane crashes of commercial airlines is 2.2. What is the probability that there will

Makovka662 [10]

Answer:

(a) more than 2 such accidents in the next month $\approx 0.3773$

(b) more than 4 such accidents in the next 2 months $\approx 0.44882$

(c) more than 5 such accidents in the next 3 more than 5 such accidents in the next 3 months $\approx 0.64533$

Step-by-step explanation:

Let N be the Random variable that marks the number of crashes in certain month.

Now let us use Poisson distribution since we are given with average number of crashes that is N \sim Pois(2.2)

(A) more than 2 such accidents in the next month

Probability(more than 2 such accidents in the next month)=P(N>2)

P(N>2)=1-P(N=0)-P(N=1)-P(N=2)

=> $1-e^-{2.2}-2.2e^{-2.2}-\frac{2.2^2}{2!}e^{2.2}$

=> $\approx 0.3773$

B) more than 4 such accidents in the next 2 months

since the average number of crashes in 1 month is 2.2, the average number of crashes in two months is 4.4. hence, if we say that $N_1$ is the number of crashes in 2 months, we have that $N\sim$ Pois(4.4)