What is the value of y?

Answer:

10.35

Step-by-step explanation:

The given triangle is a right angled ∆ .The data given is ,

We can use ratio of cosine here , as ,

=> cos∅ = b/h

=> cos 63° = x/23

=> 0.45 = x/23

=> x = 23 × 0.45

=> x = 10.35

Answer:

7/20, that's what my calculator says, hope this helps

Step-by-step explanation:

Answer:

r = 4units

Step-by-step explanation:

The standard foem of equation of a line is expressed as;

(x-a)² + (y-b)² = r²

r is the radius

Compare with the given equation (x - 2)^2 + (y + 1)^2 = 16

r² = 16

r = √16

r = 4

Hence the radius of the circle is 4

Answer:

96

Step-by-step explanation:

20 percent of 80 is 16, and added to 80 would equal 96

Answer:

B

Step-by-step explanation:

1/4 x 1/4

independent because if you flip a tails on the first toss it doesn't affect the second toss

Answer:

13 is the answer i think try it out

Answer:

4

Step-by-step explanation:

The slant height of the pyramid is marked as 5. If we drew and auxiliary 2D right triangle in the pyramid, this slant height would be the hypotenuse and one of the legs would be the height of the pyramid. The base leg would be equal to half of a side of the pyramid (3). Therefore, we can use the Pythagorean theorem to find the height ([tex]h[/tex]):

[tex]3^2+h^2=5^2,\\h^2=16,\\h=\boxed{4}[/tex]

Complete question is;

Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena's sample is 61 inches, and the MAD (mean absolute deviation) is 2 inches.

Select all the true statements. Make your selections bold.

A. The median height of the sample must be between 59 and 63 inches.

B. Another random sample of 20 students is likely to have a mean between 57 and 65 inches.

C. The mean height of these 20 students is likely to be the same as the mean height of all students in the district.

D. The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.

E. Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

Answer:

Options A, B & E are true.

Step-by-step explanation:

We are told that Elena's mean absolute deviation is 2 inches.

This means that the distance between each data point and the mean is equal to 2. This value gives us a good idea about the variability present in the dataset.

This is calculated from the difference between the mean of the absolute value of the initial mean and each data set.

Now, looking at the options. In option A, since mean height of the 20 students is given as 61, it means the median will be close to that figure too. Thus, between 59 and 63 inches given is appropriate.

In option B, if another random sample is taken, the mean would likely be close to 61 too since the MAD is 2.

Thus range given is okay.

In options C & D, there is no evidence to prove that the new mean would be the same as the district or the second random sample. This, both options are not appropriate.

In option E, if she uses a Sample of 40, she will obviously get a more accurate figure because the more the sample the more accurate the average result that represents the population.

Answer:

d

Step-by-step explanation:

Answer:

I know that's it's Biased but I can't fully get my answer out.

I beleive its biased because he is only asking those who works for the newspaper but every fifth person

I think this answer was help you

Answer:

X = 4, Y = 3.

Explanation:

Since the length of side CK is equal to the length of WM, then you can make the equation 6y-4 = 18. then you just add 4 to each side and divide both sides by six to get 3. Same thing for the other equation. Angle (i think its an angle due to its placement) C is equal to angle M, so you can make the equation 3x + 7 = 19. Subtract seven from both sides then divide by 3 to get 4. Tell me if you have any questions :)

Answer and Step-by-step explanation:

We know the triangles are congruent, so if you were to flip one of the triangles onto the other, the will perfectly match up, allowing us to solve for x and y.

19 = 3x + 7

Subtract 7 from both sides.

12 = 3x

Divide each side by 3.

4 = x

14 = 6y - 4

Add 4 to each side.

18 = 6y

Divide each side by 6.

3 = y

x = 4

y = 3

#teamtrees #PAW (Plant And Water)

Answer:

WY = 8

Step-by-step explanation:

We solve for above question using the Trigonometric function of Sine

sin θ = Opposite/Hypotenuse

Opposite = WY = x

Hypotenuse = 9

θ = 63°

Hence,

sin 63° = x/9

Cross Multiply

x = sin 63° × 9

x = 8.0190587177

Approximately x = 8

Therefore, WY = 8

Answer:

The answer is "Experimental Probability  ".

Step-by-step explanation:

The probability of experiments is uncertainty which is calculated several times as per the outcome of even an experiment. The probability distribution is probably dependent upon reasoning. This probability is a price of about one or zero. It was based on the relative frequency or what occurs during a probability test.

Answer:

[tex]Points ~that ~lies~on ~the~sides~of ~the~triangle.[/tex]

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hope it helps...

have a great day!!

Answer:

Options A and D will be your answers

Step-by-step explanation:

hope it helps you...

Answer: I think it’s B

Step-by-step explanation:

Sry if wrong pls don’t be mad.

Answer: D. 145

Step-by-step explanation: Angle 6+ 35 = 180. 180-35= 145. Angle 2 and Angle 6 are congruent and Angle 2 and Angle 4 make up a line of 180 degrees.

Answer:

D

Step-by-step explanation:

Answer:

volume = 108

Step-by-step explanation:

simple: volume = base x height

9 x 12 = 108

Answer 1452

Step-by-step explanation:

im not sure if im correct but the formua is V  = L x W x H which is volume equal lenth multiplied by with multiplied by height. so 12 x 11 x 11

Answer:

35/12

Step-by-step explanation:

Opposite/Adjcent (of C)

35/12

Answer:

2-16x^3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

z, duehdhdhd 2747 36veuend

Answer:

Arc length

[tex]2\pi \times 8 \times \frac{90}{360} \\ 4\pi[/tex]

Answer: kung ano ang dapat tandaan ay na kailangan mong makuha ang bawat detalye at gawin ang mga bagay na mabagal upang hindi ka makaligtaan anything. Pinaka utok pls

Step-by-step explanation:

Answer:

polygon is regular. Round answer to the nearest tenth

Step-by-step explanation:

3x-8>22

hope this helps!

Answer:

y=-7

Step-by-step explanation:

Answer:

8y=-56

Step-by-step explanation:

Subtract 15y-2y

after you get 13y subtract 5y which is 8y

afterwards subtract -29-27 which is addition and you get -56

y=-7

Answer:

all the answers are correct

Step-by-step explanation:

2 times 2 times 3 times 3 =36

2 times 3 times 2 times 3 = 36

2 times 9 times 2 = 36

2 times 2 times 9 = 36

Answer:

60.57

Step-by-step explanation:

The angle L can be found using the inverse sine function.

L=arcsin(opp/hyp )

L=arcsin(2.7/3.1)

L =60.57129282