can you please help me with this question ?​

Answer:

the correct answer is letter B

Answer:

2/3

Step-by-step explanation:

rise over run

Answer:

Step-by-step explanation:

take 34 degree as reference angle

using tan rule

tan 34=opposite/adjacent

0.67=x/16

0.67*16=x

10.72=x

10.7=x (after converting it to the nearest tenth)

Answer:

let the number be y

Opposite of 4 is -4

4y + 8 = -4

Group liked terms

4y = -4 - 8

4y = -12

y = -3

Step-by-step explanation:

let the number be y

Opposite of 4 is -4

4y + 8 = -4

Group liked terms

4y = -4 - 8

4y = -12

y = -3

Answer:7.5=−k(2.5)−7.52.5=kma=−7.5x2.5my′′+9y′+−3y=0,y(0)=2.5,y(5)=0−9±81+4(m)(3)−−−−−−−−−−−√2m−92m±81+12m−−−−−−−−√2my=Ae−(9/2)xcos(81+12m−−−−−−−−√2mx)+Be−(9/2)xsin(81+12m−−−−−−−−√2mx)2.5=A+B⋅00=(2.5)e−45/2cos(81+12m−−−−−−−−√52m)+Be−45/2sin(81+12m−−−−−−−−√52m)

Step-by-step explanation:

Answer: 5/14

Step-by-step explanation:

Answer:

[tex]3x^2-1[/tex]

Step-by-step explanation:

Answer:

[tex]j = \frac{3}{4} m[/tex]

Step-by-step explanation:

[tex]4j = 3m[/tex]

Divide both sides by 4 and you get the answer :)

Step-by-step explanation:

Yo all ✌️✌️

Jóin me

g-meet

besmfyotjp

Answer:

73.66 miles per hour

or if 40 degree whole swing of pendulum then ;

147.33 miles per hour.

Divide by 3600 for p/second

Step-by-step explanation:

sin x = opp /hyp  = 8 x sin (20) = 1.113384808 = 1.11ft

1.1ft p/s

5290 feet in every mile

5290/1.113384808 = 4751.27733 feet

3500 seconds in an hour

3500/4751.27733 x 100 = 73.6644013 m/ph

Scenario 2

or 2.2 feet per second depending on whether the angle from central each side is 20 degrees = 1.1 x 2 = 2.2 feet.

5290/2.22676962 =2375.63866

3500 seconds in an hour

3500/2375.63866 x 100 =  147.328803 m/ph

Answer:

I'm not positive but here are my calculations:

A cube is 1 unit per cube. 3+2+1=6 if you do 6x6 you come out with 36.

Hope this helped.

Answer:

the answer should be 3 and 5 :)

Step-by-step explanation:

the answer speaks for itself

Answer:

-250, and 100

Step-by-step explanation:

The intercepts of the line are the points where line intersects the x-axis and y-axis .

the x intercept is at point (-250, 0)

the y intercept is at point (0, 100)

Answer:

Hello There!!

Step-by-step explanation:

I believe the answer is b. If you add and subtract two standard errors to and from the sample mean, in 95% of all cases, you will have captured the true population mean.

hope this helps,have a great day!!

~Pinky~

The 95% confidence interval does not mean that b. If you add and subtract two standard errors to ... 95% of all cases,... captured the true population mean.

It means that for any given number of samples, 95% of them will fall within 2 standard errors of the true mean of the population the sample is derived from.

Applying this confidence interval to the sample mean will not help you capture the true population mean which is why option B is incorrect as regards the 95% confidence interval for the population mean.

In conclusion, option B is correct.

Find out more on the 95% confidence interval at https://brainly.com/question/3191358.

Answer:

[tex]7x - 21y = 14 - - - (a) \\ 2x + 3y = 11 - - - (b) \\ (a) + 7 \times (b) : \\ 21x + 0y = 91 \\ x = 4.33 \\ (2 \times 4.33) + 3y = 11 \\ 3y = 2.34 \\ y = 0.78 \\ { \boxed{x = 4.33}} \\ { \boxed{y = 0.78}}[/tex]

Answer:

147 cubic inches

Step-by-step explanation:

volume of the prism is length x breadth x height

3.5 x 7 x 6=147

Answer:

This isn't a question

Step-by-step explanation:

Answer:

-x^2+2x-3

Step-by-step explanation:

(x^2 - 3x) + (-2x^2 + 5x - 3)

Combine like terms

-x^2+2x-3

Answer:

The fourth answer

Step-by-step explanation:

What is the sum of the given polynomials in standard form? (x2 - 3x) + (-222 + 5x - 3) 0 -37 + 8x - 3 0-22–2x-3 o 3,2 - 8x + 3 o 2 + 2-3

The fourth answer

Answer:

The decrease in the value of the truck, which is 12%

Step-by-step explanation:

f(x) = 29,000(0.88)^x

This is an exponential function of the form

y = ab^x

a is the initial value

b is the growth(decay) rate

x is the time

Since b is less than 1, we know it is decay

To find the rate

1-b = rate

1-.88 = .12

The decay rate is .12*100% = 12 %

Answer:

its A:The decrease in the value of the truck, which is 12%

Step-by-step explanation:

i got this correct

Answer:

75.4cm

Step-by-step explanation:

To calculate the circumference, you need the radius of the circle:

Multiply the radius by 2 to get the diameter.

Multiply the result by π, or 3.14 for an estimation.

That's it; you found the circumference of the circle.

Answer:

C ≈ 75.4 cm

Step-by-step explanation:

[tex]2\pi r[/tex]

2 × 3.14 × 12

C ≈ 75.4 cm

Answer:

15.31

Step-by-step explanation:

The expected value, E(X) is given by :

E(X) = Σx*p(x)

From the table above :

E(X) = (13 * 0.01) + (14 * 0.27) + (15 * 0.30) + (16 * 0.25) + (17 * 0.16) + (18 * 0.01)

E(X) = 15.31

The percentage of the games the club has won is P = 77.78 %

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.

Percentage change is the difference between the measured value and the true value , as a percentage of the true value

Percentage change =( (| Measured Value - True Value |) / True Value ) x 100

Given data ,

Let the total number of games = 18

The number of games they lost = 4

So , the number of games they won = 14 games

Now , the percentage of games they won = ( 14 / 18 ) x 100

On simplifying the equation , we get

A = 0.7778 x 100

A = 77.78 %

Hence , the percentage is 77.78 %

To learn more about percentage click :

https://brainly.com/question/12861068

#SPJ2

Answer:

I think the answer would be 22.15 but I'm not really sure.

Answer:

22.15

Step-by-step explanation:

So, lets go over a few things:

The y coordinates is the Foot length.

The x coordinate is the Arm span.

They gave us a yellow stone in the graph, this shows what the feet length is when the arm length is at a specific value.

So we need to find the foot length when the arm length is at 160.

Once you have pinpointed 160 on the graph, go strait up until you get to the yellow line.

WHen you hit the yellow line, look at the y axis. It should seem to be in between 21 and 23.The only answer in between 21 and 23 is 22.15

So this is the answer!

Hope this helps! :D

Answer:

Step-by-step explanation:

take angle C as reference angle

using tan rule

tan C=oppposite/adjacent

tan C=6/12

tan C=0.5

C=[tex]tan^{-1}[/tex]0.5

C=26.6 degree

9514 1404 393

Answer:

  x^2/625 +y^2/400 = 1

Step-by-step explanation:

The semi-major axis is a=25, the semi-minor axis is b=20. The equation is ...

  x^2/a^2 +y^2/b^2 = 1

  x^2/625 +y^2/400 = 1

Answer:

There is not a convincing statistical evidence, at the significance level of a = 0.05, that the manager's belief is correct.

As the null hypothesis maybe false accepting it makes a type II error.

Step-by-step explanation:

Let the null and alternate hypotheses be

H0: p ≤ 0.4  vs Ha : p>0.4

q= 1-p= 1-0.4= 0.6

The significance level alpha is 0.05

The critical region for one tailed test is Z> ± 1.645

The sample proportion is p^= x/n= 38/90=0.42222

Using the z statistic

z= p^- p/ √pq

z= 0.422-0.4/ √0.4*0.6

z= 0.04536

Since the calculated value of z= 0.04536 does not lie in the critical region  Z> ± 1.645 we fail to reject null hypothesis.

There is not sufficient evidence to support the manager's claim.

Type I error is when we reject the true null hypothesis .

Type II error is when we accept the false null hypothesis .

As the null hypothesis maybe false accepting it makes a type II error.

There is not enough statistical evidence that the managers' claim is true.

Suppose that we have:

Then, the z test statistic for one sample proportion is:

[tex]Z = \dfrac{\hat{p} - p}{\sqrt{\dfrac{p(1-p)}{n}}}[/tex]

The Type I error is false positive (returning the test result as positive, which means, rejecting the null hypothesis(conclusion of rejection of null hypothesis is called positive test result) when its incorrect).

The Type II error is false negative (returning the test result as negative, which means, accepting the null hypothesis(assuming negative test result, so no flaw in null hypothesis from the perspective of test) when its wrong).

For this case, we've got:

The hypotheses for test would be:

It is single tailed.

At the level of significance 0.05, for single tail, the critical value of Z test statistic is found to be [tex]Z_{\alpha/2} = \pm1.645[/tex]

The z test statistic for one sample proportion is:

[tex]Z = \dfrac{\hat{p} - p}{\sqrt{\dfrac{p(1-p)}{n}}}[/tex]

We test null hypothesis, according to which p is 0.4 or less, so we get:

[tex]Z \approx \dfrac{0.422- 0.4}{\sqrt{\dfrac{0.4(1-0.4)}{90}}} \approx \dfrac{0.022}{\sqrt{0.00267}} \approx 0.426 < |Z_{\alpha/2}| = 1.645[/tex]

Thus, we accept the null hypothesis (we do so when [tex]Z < |Z_{\alpha/2}|[/tex] )

Therefore, there is not enough statistical evidence that the managers' claim is true.

Thus, here, we get:

Learn more about type I and type II errors here:

https://brainly.com/question/26067196

Answer:

both of them thats the answer

Step-by-step explanation:

Answer:

[tex]\frac{1}{5} (2x+10)=4[/tex] [tex]x=5[/tex]

[tex]\frac{1}{3} (3x+9)=9[/tex] [tex]x=6[/tex]

Step-by-step explanation:

[tex]\frac{1}{5} (2x+10)=4[/tex]

Multiply both sides of the equation by 5.

5 · [tex]\frac{1}{5}[/tex] · [tex](2x+10)=[/tex] 5 · 4

Simplify both sides of the equation.

[tex]2x+10=20[/tex]

Subtract 10 from both sides of the equation.

[tex]2x=10[/tex]

Divide each term by 2 and simplify.

[tex]x=5[/tex]

--------------------------------------------------------------------

[tex]\frac{1}{3} (3x+9)=9[/tex]

Substitute x for 6

[tex]\frac{1}{3} (3(6)+9)=9[/tex]

Multiply 3 · 6

[tex]\frac{1}{3} ((18)+9)=9[/tex]

Add 18 + 9

[tex]\frac{1}{3} (27)=9[/tex]

Divide [tex]\frac{1}{3}[/tex] ÷ 27

9 = 9

Answer:

0.8

Step-by-step explanation:

i did math <: