What is sin 23°?
Helpppp!!!!!!!!!!!!!

Answer:

The total surface area is 178.08

Answer:

The surface area of this figure is 178.08yd²

Answer:  2/25 as a percent is 8% and as a decimal is 0.08 and what is your question I don't really understand?

Step-by-step explanation:

Answer:

The answer would be 150 degrees.

Step-by-step explanation:

When looking at the problem you can see that you have two parallel lines and a transversal. Since the two lines are parallel, this allows alternate interior angles to form, i.e. <A and <B.

Since angle A and B are alternate interior angles, you can now set the two equal to each other.

So, in order to find out what x equals, you have to set the two equations equal to each other.

8x-10=3x+90

Next, solve the new equation.

8x-10=3x+90

Add 10 to both sides.

8x=3x+100

Subtract 3x from both sides.

5x=100

Divide both sides by 5 and you'll get your answer.

x=20

Now that you know what x equals, you can substitute it into the equation for B.

<B= 3(20)+90

60+90= 150

<B=150 degrees

That gives you your answer of <B = 150 degrees.

To check your work you can also substitute x into the equation for <A.

<A= 8(20)-10

160-10= 150

<A=150 degrees.

Therefore, you have just proved that the answer is 150 degrees.

Answer:

D last one

Step-by-step explanation:

Answer:6

Step-by-step explanation:

4,4,5,6,8,10,12

You start marking out 4&12,4&10,5&8 which leaves you with 6

Answer:

50

Step-by-step explanation:

[tex]\boxed{distance \: between \: 2 \: points = \sqrt{(y1 - y2)^{2} + (x1 - x2) {}^{2} }}[/tex]

Distance between the 2 points

[tex] = \sqrt{( - 3 - 2) {}^{2} +( - 1 - 4) {}^{2} } [/tex]

[tex] = \sqrt{( - 5)^{2} + ( - 5)^{2} } [/tex]

[tex] = \sqrt{25 + 25} [/tex]

[tex] = \sqrt{50} [/tex]

Thus, the number that goes beneath the radical symbol is 50.

Answer:

y=31.04668635

Rounded to 1dp would be 31.0

So Y=31.0cm

Step-by-step explanation:

Hypotenuse : Opposite the right angle.

Opposite : Opposite the angle.

Adjacent : the only side left.

Soh Cah Toa (trigonometry formula)

You don't need hypotenuse, so that's irrelevant.

You have opposite and adjacent, O and A, which is tan.

You need to rearrange the formula.

Length ×Tan(Angle) =Opposite.

37×Tan(40)=31.04668635cm

Answer:

Quadrilateral

Step-by-step explanation:

Quadrilateral is a four sided figure like the US flag.

Answer:

quadrilateral

Step-by-step explanation:

Answer:

thz for my points back lol.///.//

Step-by-step explanation:

Answer:

22, also nice woomy pfp!!!!

Answer:

Step-by-step explanation:

8 in × (1 ft)/(12 in) = ⅔ ft

36 ft × 58 ft × ⅔ ft = 1392 ft³

1392 ft³ × (1 yd³)/(27 ft³) ≅ 52 yd³

52 yd³ × $123/yd³ = $6396

Answer:

a. The 95% confidence interval is 1,022.94559 < μ < 1,003.0544

b. There is significant evidence that Florida students perform differently (higher mean) differently than other students in the United States

c. i. The 95% confidence interval for the change in average test score is; -18.955390 < μ₁ - μ₂ < 6.955390

ii. There are no statistical significant evidence that the prep course helped

d. i. The 95% confidence interval for the change in average test scores is  3.47467 < μ₁ - μ₂ < 14.52533

ii. There is statistically significant evidence that students will perform better on their second attempt after the prep course

iii. An experiment that would quantify the two effects is comparing the result of the confidence interval C.I. of the difference of the means when the student had a prep course and when the students had test taking experience

Step-by-step explanation:

The mean of the standardized test = 1,000

The number of students test to which the test is administered = 453 students

The mean score of the sample of students, [tex]\bar{x}[/tex] = 1013

The standard deviation of the sample, s = 108

a. The 95% confidence interval is given as follows;

[tex]CI=\bar{x}\pm z\dfrac{s}{\sqrt{n}}[/tex]

At 95% confidence level, z = 1.96, therefore, we have;

[tex]CI=1013\pm 1.96 \times \dfrac{108}{\sqrt{453}}[/tex]

Therefore, we have;

1,022.94559 < μ < 1,003.0544

b. From the 95% confidence interval of the mean, there is significant evidence that Florida students perform differently (higher mean) differently than other students in the United States

c. The parameters of the students taking the test are;

The number of students, n = 503

The number of hours preparation the students are given, t = 3 hours

The average test score of the student, [tex]\bar{x}[/tex] = 1019

The number of test scores of the student, s = 95

At 95% confidence level, z = 1.96, therefore, we have;

The confidence interval, C.I., for the difference in mean is given as follows;

[tex]C.I. = \left (\bar{x}_{1}- \bar{x}_{2} \right )\pm z_{\alpha /2}\sqrt{\dfrac{s_{1}^{2}}{n_{1}}+\dfrac{s_{2}^{2}}{n_{2}}}[/tex]

Therefore, we have;

[tex]C.I. = \left (1013- 1019 \right )\pm 1.96 \times \sqrt{\dfrac{108^{2}}{453}+\dfrac{95^{2}}{503}}[/tex]

Which gives;

-18.955390 < μ₁ - μ₂ < 6.955390

ii. Given that one of the limit is negative while the other is positive, there are no statistical significant evidence that the prep course helped

d. The given parameters are;

The number of students taking the test = The original 453 students

The average change in the test scores, [tex]\bar{x}_{1}- \bar{x}_{2}[/tex] = 9 points

The standard deviation of the change, Δs = 60 points

Therefore, we have;

C.I. = [tex]\bar{x}_{1}- \bar{x}_{2}[/tex] + 1.96 × Δs/√n

∴ C.I. = 9 ± 1.96 × 60/√(453)

i. The 95% confidence interval, C.I. = 3.47467 < μ₁ - μ₂ < 14.52533

ii. Given that both values, the minimum and the maximum limit are positive, therefore, there is no zero (0) within the confidence interval of the difference in of the means of the results therefore, there is statistically significant evidence that students will perform better on their second attempt after the prep course

iii. An experiment that would quantify the two effects is comparing the result of the confidence interval C.I. of the difference of the means when the student had a prep course and when the students had test taking experience

Answer:

h and k are simply variables that stand in for the x and y of a point. Math books could have easily have used x1, x2 y1 y2, etc, but h and k is the convention.

anyway, this is a guess n check question. Substitute the x value of the point for h, and y value for k, and whichever one gives you a true equation is the right one.

Answer:

Step-by-step explanation:

y = a(x-h)²+k is the “vertex-form equation” for a vertical parabola with vertex (h,k).

Since a>0, the parabola opens upwards. (If a<0, it opens downwards. If a=0, it is not a parabola at all.)

The parabola y = a(x-h)²+2k is the same shape as the first equation, but it is shifted vertically by k units.

Since (2,4) is a point on the first parabola, (2,4+k) is a point on the second parabola.

Answer:

4th choice

Step-by-step explanation:

I did process of elimination.

Obviously has to be greater than or equal to 500, since that is the minimum. 12 student clubs multiplied by x, which is probably the amount of many each club makes, plus the amount donated by faculty, so it has to be 12x + 100.

Answer:

x=7?

Step-by-step explanation:

Answer:

x=7

Step-by-step explanation:

8x-(6x-7)=21

8x-6x+7=21

2x+7=21

2x=21-7

2x=14

x=14/2

x=7

8*7-(6*7-7)

56-(42-7)

56-35

21

Answer:

[tex]AC:CB = 3:2[/tex]

Step-by-step explanation:

Given

The attached

Required

Find the ratio when partitioned by C

When BA is partitioned, the segments are: AC and CB

From the attachment:

[tex]AC = 3[/tex]

[tex]CB = 2[/tex]

So, the ratio is:

[tex]Ratio = AC : CB[/tex]

[tex]AC:CB = 3:2[/tex]

Given:

[tex]\log_34\approx 1.262[/tex]

[tex]\log_37\approx 1.771[/tex]

To find:

The value of [tex]\log_3\left(\dfrac{4}{49}\right)[/tex].

Solution:

We have,

[tex]\log_34\approx 1.262[/tex]

[tex]\log_37\approx 1.771[/tex]

Using properties of log, we get

[tex]\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_349[/tex]      [tex]\left[\because \log_a\dfrac{m}{n}=\log_am-\log_an\right][/tex]

[tex]\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_37^2[/tex]      

[tex]\log_3\left(\dfrac{4}{49}\right)=\log_34-2\log_37[/tex]          [tex][\log x^n=n\log x][/tex]

Substitute [tex]\log_34\approx 1.262[/tex] and [tex]\log_37\approx 1.771[/tex].

[tex]\log_3\left(\dfrac{4}{49}\right)=1.262-2(1.771)[/tex]

[tex]\log_3\left(\dfrac{4}{49}\right)=1.262-3.542[/tex]

[tex]\log_3\left(\dfrac{4}{49}\right)=-2.28[/tex]

Therefore, the value of [tex]\log_3\left(\dfrac{4}{49}\right)[/tex] is [tex]-2.28[/tex].

Answer:

The answer is 3

Step-by-step explanation:

Here's my explanation. So all you have to do is divide 6 by 2 and we ALL KNOW FOR AFACT what 6/2 right? And its 3 so there ya go!!!

Answer:

(c) The x and y coordinates are switched

Step-by-step explanation:

Given

[tex]Point = (4,-1.5)[/tex]

See attachment

Required

Determine the error in the plot

The plot on the attached graph is represented with: [tex](-1.5, 4)[/tex]

This implies that Raj plotted the x coordinate on the y coordinate and vice versa.

Hence: (c) is true

Answer:

The answer is C. or The x- and y-coordinates are switched.

Step-by-step explanation:

I got this right on edge 2020!!!

Please give brainliest!!!

hope this helps!!!

Answer: 17 square units

Step-by-step explanation:

There are two rectangles

One has the dimensions

5 by 3, A = 5 * 3 = 15

The other has the dimensions 3-2 or 1 by 7-5 or 2, A = 1 * 2 = 2

Add the areas:

15 + 2 = 17

The entire area is 17 square units

Answer:

[tex]Polynomial = 5x+ 2[/tex]

Step-by-step explanation:

Given

[tex]Weights = 3 + 4x[/tex]

[tex]Treadmill = 9x + 5[/tex]

Required

Polynomial that represents time spent running treadmill than weight lifting

To do this, we simply subtract weights from treadmill

i.e.

[tex]Polynomial = Treadmill - Weights[/tex]

[tex]Polynomial = 9x + 5 - (3 + 4x)[/tex]

[tex]Polynomial = 9x + 5 - 3 - 4x[/tex]

[tex]Polynomial = 9x - 4x+ 5 - 3[/tex]

[tex]Polynomial = 5x+ 2[/tex]

Answer:

19

Step-by-step explanation:

y = 2(5) + 9

Answer:

$79.12

Step-by-step explanation:

0.54 x 172 = 92.88

172 - 92.88 = 79.12

He needs $79.12 more.

Bailey has saved 54% of the money he needs to buy a new

skateboard he needs $79.12 more.

We have given that,

Bailey has saved 54% of the money he needs to buy a new

a skateboard that costs $172.00.

We have to determine how much more money he needs to buy the skateboard.

What is the savings?

Saving is income not spent or deferred consumption. Methods of saving include putting money aside in, for example, a deposit account, a pension account, an investment fund, or cash. Saving also involves reducing expenditures, such as recurring costs.

0.54 x 172 = 92.88

172 - 92.88 = 79.12

He needs $79.12 more

To learn more about the savings visit:

https://brainly.com/question/25787382

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Answer:

We can solve this problem by:-

Here,

X=38°(Being vertically opposite angle)

So, X=38°

Vertical angles are congruent

The value of x = 38 degrees.

Given :

We are given with two lines that intersects .

we need to find out the vertical angle for the given angle.

When two lines intersects then the opposite angles are equal .

Opposite angles we call it as vertical angles .

Vertical angles are equal when two line intersects.

From the given diagram , vertical angles x  and 38  are congruent .

so [tex]x=38[/tex]

The value of x is 38 degrees.

Learn  more :

brainly.in/question/4585441

% is read as percent, and cent means 100.

In this case 6% is 6 out of 100 or 6/100.

so 6%*350=350*6/100=21

The second case its 25%*80=25/100*80=20

The third case, its 35*15/100=5.25