In XYZ the measure of Z=90 ZY=7, XZ=24 and YX=25 what ratio represents the cosine of X?

Answer:

790

Step-by-step explanation:

Substitute the value (x = 5) into the following expression, replace the parameter (x) with the value (5) wherever the parameter (x) is present,

[tex]6x^3+8x[/tex]

[tex]6(5)^3+8(5)[/tex]

Simplify use the order of operations. The order to operations is the system of steps that one uses to solve an equation, these steps are the following,

1. Parenthesis

2. Exponents or Radicals

3. Multiplication or Division

4. Addition or subtraction

Quick note, a number to any exponent is equal to the number times itself the number of times the exponent indicates.

Use these steps to simplify the given expression,

[tex]6(5)^3+8(5)\\\\=6(125)+8(5)\\\\=750+40\\\\=790[/tex]

Answer:

$346.5

Step-by-step explanation:

10% of $550 is 55

3*55 = 165

550 - 165 = $385

10% of $385 is 38.5

385 - 38.5 = $346.5

Have a nice day! :-)

Answer:

4x+8y and 5(3x-y)

Step-by-step explanation:

In the first question 4(x + 2y), you multiply 4 by both the x and the +2y. This is known as the distributive property. So, 4*x is 4x and 4(2y) is +8y. This is equal to 4x+8y.

In the second question 15x-5y, there is a common factor of 5, so you take 5 out and get 5(3x-y). If you open up these brackets, you get 15x-5y. This cannot be factored any further.

Answer:

A. I and IV only

Step-by-step explanation:

I calculated it logically

Answer:

x = -7 or 7

Step-by-step explanation:

x² - 49 = 0

→ Factorise

( x + 7 ) ( x - 7 )

→ Solve

x = -7 or 7

Answer:

(x + 7) (x - 7) = 0

x + 7 = 0 and x - 7 = 0

So, x = +7 and -7

Hope this helps!

Answer:

1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

You're welcome!

Answer:

t=2.24 for khan

Step-by-step explanation:

The test statistic for the Adam's test is 2.24.

Test statistic is a value calculated from a statistical test of hypothesis. It describes the closeness of the observed data with the expected distribution under the null hypothesis.

The formula to find the test statistic is,

t = (x - μ) / (s / √n)

Here x is the sample mean, μ is the population mean, s is the standard deviation and n is the sample size.

Given,

x = 208, μ = 200, s = 25 and n = 49

Substituting the values,

t = (208 - 200) / (25 / √49)

 = (8 × 7) / 25

 = 2.24

Hence the test statistic is 2.24.

Learn more about test Statistic here :

https://brainly.com/question/14128303

#SPJ3

Answer:

-1

Step-by-step explanation:

first put the equation in slop int form:

y= x-6

to find the slope of a line that is perpendicular take the negative reciprical of the slope

so the answer is

-x

Answer:

4x^2 + 28x + 48

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

4x^2 +28x+48

Step-by-step explanation:

see steps below:)

Answer:

ummm. what do you need help with???

Answer:

x = 3 + 2p        (2p is 2 times p)

Answer:

The p-value of the test is 0 < 0.05, which means that there is significant evidence to conclude that more people utilize the bike lane after the change.

Step-by-step explanation:

Before the upgrade, on any given day, it was known that the section of road saw an average of 350 unique cyclists. Test if more people are using now.

At the null hypothesis, we test if the same number of people is still using, that is, the mean is 350. So

[tex]H_0: \mu = 350[/tex]

At the alternate hypothesis, we test if this mean increased, that is:

[tex]H_1: \mu > 350[/tex]

The test statistic is:

[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

350 is tested at the null hypothesis:

This means that [tex]\mu = 350[/tex]

After the upgrade, they took a random sample of 35 days in the year and counted the number of unique cyclists each day. The average was 405 cyclists with a standard deviation of 25.

This means that [tex]n = 35, X = 405, s = 25[/tex].

Test statistic:

[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{405 - 350}{\frac{25}{\sqrt{35}}}[/tex]

[tex]t = 13.02[/tex]

P-value of the test and decision:

The p-value of the test is the probability of finding a sample mean above 405, which is a right-tailed test with t = 13.02 and 35 - 1 = 34 degrees of freedom.

Using a t-distribution calculator, this probability is of 0.

The p-value of the test is 0 < 0.05, which means that there is significant evidence to conclude that more people utilize the bike lane after the change.

Answer:

my answer would be c. y=lX+7l

Answer:

b,c and A

Step-by-step explanation:

Answer:

Honestly I dont really know

Step-by-step explanation:

Answer:

Law of sine

Angle R = 34°

Step-by-step explanation:

From the question given above, the following data were obtained:

Side opposite angle Q (q) = 54 ft

Angle Q = 96 °

Side opposite angle R (r) = 30 ft

Angle R =?

The value of angle R can be obtained by using the law of sine as illustrated below:

r / Sine R = q / Sine Q

30 / Sine R = 54 / Sine 96

Cross multiply

54 × Sine R = 30 × Sine 96

54 × Sine R = 30 × 0.9945

54 × Sine R = 29.835

Divide both side by 54

Sine R = 29.835 / 54

Sine R = 0.5525

Take the inverse of Sine

R = Sine¯¹ 0.5525

R = 34°

Thus, the value of angle R is 34°

Answer:

associative only!!!!!!!!!!!!!

9514 1404 393

Answer:

  90°

Step-by-step explanation:

On a standard 12-hour analog clock, the minute hand will be at the 12, and the hour hand will be at the 3 at 3:00. The smaller angle between the two hands is 90°. Of course, the larger angle is 360° -90° = 270°.

Answer:

50% off

Step-by-step explanation:

The coupons are based on the percentage off. In this case, it doesn’t matter that one coupon is for nightstands. Would you rather save 50% or 25%? The answer is 50%.

Answer:

B

Step-by-step explanation:

Answer:

Circle

Step-by-step explanation:

The horizontal cross section of a cylinder is a circle

Answer:

Circle

Step-by-step explanation:

The horizontal cross section is a circle. If we slide the figure in half, the shape it would show is a circle.

If you have any questions, comment!!

Hope this helped!! :)

Answer: y=3x+1

Step-by-step explanation:

First find slope using formula

m= y2–y1/x2–x1

m= 4– (—2)/ 1— (—1)

m= 3

So,

y= mx+b

y=3x+b. Using (1,4) plug into equation of a line

4= 3(1)+b

4 – 3= b

1= b. So,

y=3x+1

Answer:

y= 3x+1.

Step-by-step explanation:

(-1,-2) and (1,4)

x1 = -1

x2= 1

y1= -2

y2=4

y - y1= (y2 - y1)

______ ( x - x1)

(x2 - x1)

y- (-2)=(4-(-2))

_____ (x- (-1))

(1-(-1))

y+2= 4+2

___ (x+1)

1+1

y+2= 6

_ (x + 1)

2

y+2=3(x+1)

y+2=3x+3

y=3x+1.

Answer:

B

Step-by-step explanation:

Answer:

B)...  A and C

Step-by-step explanation:

A is a square with a length of 6 so the area is 36

but the perimiter is 24

C is a rectangle with a width of 4 and a length of 12 so the area is 36 also

but the perimiter of C is  32

A and C have the same area but a diffrent perimiter

Answer:

53 degrees

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

Angle D = Angle F as they are vertical angles :)))

Step-by-step explanation:

d=√(x2-x1)²+(y2-y1)²

d=√(-1+-7)²+(1+6)²

d=√(-8)²+(7)²

d=√64+49

d==√113

d=10.6

Answer:

468

Step-by-step explanation:

Answer:

468

Step-by-step explanation:

First, we want to break this up into separate pieces, there will be 3 rectangles and 1 square.

each rectangle has a height of 6 and a width of 24. so the area of each rectangle would be 6*24 or 144, then we multiply that by 3 because there are 3 rectangles, when we multiply 144*3 we will get 432.

Now we must solve for the area of the square, on each side, it is 6 cm so we multiply 6*6 so we get 36, that's all we need to do for that now.

to get our final answer we add both answers together so, 432+36 then our final answer is 468 cm

Answer:

Answer:

She used 22 paper fans, 66 balloons, and 32 streamers.

Step-by-step explanation:

In order to solve this problem, we need to find out the value of the paper fans. Because we need to find out the balloon amount, which is 3 times as much. The amount of streamers is 12 fewer than two times. We can't find it out just yet since we don't know the value of the paper fans. To find it out:

First, let's call the amount of paper fan as "x".

Then, we need to find out the amount of balloons. It is 3 times x. Which is the same as 3x.

The equation is now x + 3x + (?) = 120

We need to find out the amount of the (?).

So, to do that, it says the value is 12 fewer than 2 times the value of x. (x, because it is the amount of paper fans.)

It should be 2x-12.

Now, the equation is x+3x+2x-12=120.

Once we solve it, we know "x" is 22.

Now, we can multiply 3 by 22. Which is 66.

Then we can multiply 22 by 2, which is 44, and subtract 12, which is 32.

To double check, 22 + 44 + 32 = 120.

That's your answer!

Answer:

Step-by-step explanation:

its 22, and 66, and 32