Help me !!!
Please I really need it

Help Me !!!Please I Really Need It

Answers

Answer 1

Answer:

i don't know

Step-by-step explanation:


Related Questions

find the value of x and is it congruent or not​

Answers

Answer:

x would be 10.

It is congruent since two sides are given to be congruent. This can be proven with the SSS Congruence Postulate.

4 * (3.4+2)-(56 divided by 7)= 13.6, please give an explanation to this problem!!

Answers

Answer:

[tex]=13.6[/tex]

Step-by-step explanation:

[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]

[tex]=4\left(3.4+2\right)-\frac{56}{7}[/tex]

[tex]=21.6-8[/tex]

[tex]\mathrm{Subtract\:the\:numbers:}\:21.6-8=13.6[/tex]

[tex]=13.6[/tex]

A student records the repair cost for 22 randomly selected dryers. A sample mean of $98.78 and standard deviation of $15.49 are subsequently computed. Determine the 95% confidence interval for the mean repair cost for the dryers. Assume the population is approximately normal. Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Answers

Answer:

The critical value that should be used is T = 2.0796.

The 95% confidence interval for the mean repair cost for the dryers is between $91.912 and $105.648.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 22 - 1 = 21

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 21 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.0796, which is the critical value that should be used.

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 2.0796\frac{15.49}{\sqrt{22}} = 6.868[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 98.78 - 6.868 = $91.912

The upper end of the interval is the sample mean added to M. So it is 98.78 + 6.868 = $105.648

The 95% confidence interval for the mean repair cost for the dryers is between $91.912 and $105.648.

PLS ANSWER FAST WILL GIVE BRANLIEST

Answers

Answer:

m<RTS=63

m<PTQ=27

Step-by-step explanation:

8x-17=5x+13

x=10

5(10)+13=63

8(10)-17=63

<RTQ=<UTQ

90-63=27

What's another name for qualitative variables?

Answers

Answer:

A qualitative variable, also called a categorical variable, is a variable that isn't numerical.

A qualitative variable, also called a categorical variable, is a variable that isn't numerical. It describes data that fits into categories.

I need help in this algebra problem plz

Answers

Answer:

X+2

Step-by-step explanation:

Two less than five times a number is equal to 10 more than seven times the number. What is the number?

Answers

Answer:

x = -6; the number is -6!

Step-by-step explanation:

This is a somewhat wordy question, but it is actually easy to solve once you write it down!

It should look like this:

[tex]5x-2=7x+10[/tex]

See? It's simple! Now we just solve from there.

[tex]5x-2=7x+10\\-2x-2=10\\-2x=12\\x=-6[/tex]

Have a nice day fam! Spread the love <3

will someone help me with this?

Answers

height of movable brigde 37cm

width of movable brigde 85 cm

Solve for x.
7x - = 6x -
O x = 1/4
Ox=1
Ox= -1
O x = -1/4
Will give brainly

Answers

Answer:

D. - 1/4

Step-by-step explanation:

Answer:

-1/4

Step-by-step explanation:

0.375=3/8 0.625=5/8

7x-0.375=6x-0.625

1x=-0.25

-0.25=-1/4

(NO LINKS) A space shuttle travels at 2.6 x 10,000 feet per second. An hour is 3.6 x 1,000 seconds. This expression can be used to find the number of feet the space shuttle travels in an hour. How many feet does the shuttle travel in an hour?

Answers

Answer:

1) 7.22 ft in a hr & 2) Choice C.  y = 0.50x + 2

Step-by-step explanation:

1) Space shuttle

2.6 x 10,000 = 26,000ft

3.6 x 1,000 = 3,600 seconds = 1 hr

26,000/3,600 = 7.22 ft in a hr

2) Taxi company

y = 0.50x + 2

A sample of 1300 computer chips revealed that 50% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 47% of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Make the decision to reject or fail to reject the null hypothesis at the 0.01 level.

Answers

Answer:

The pvalue of the test is 0.03 > 0.01, which means that we fail to reject the null hypothesis at the 0.01 level.

Step-by-step explanation:

The company's promotional literature states that 47% of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage.

This means that at the null hypothesis we test that the proportion is 47% = 0.47, that is:

[tex]H_0: p = 0.47[/tex]

And at the alternate hypothesis, we test that the proportion is different from 47%, that is:

[tex]H_a: p \neq 0.47[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

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

47% is tested at the null hypothesis:

This means that [tex]\mu = 0.47, \sigma = \sqrt{0.47*0.53}[/tex]

A sample of 1300 computer chips revealed that 50% of the chips do not fail in the first 1000 hours of their use.

This means that [tex]n = 1300, X = 0.5[/tex]

Value of the test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{0.5 - 0.47}{\frac{\sqrt{0.47*0.53}}{\sqrt{1300}}}[/tex]

[tex]z = 2.17[/tex]

Pvalue of the test and decision:

The pvalue of the test is the probability that the proportion differs from 0.47 by at least 0.5 - 0.47 = 0.03, which is P(|Z| > 2.17), which is 2 multiplied by the pvalue of Z = -2.17

Z = -2.17 has a pvalue of 0.015

2*0.015 = 0.03

The pvalue of the test is 0.03 > 0.01, which means that we fail to reject the null hypothesis at the 0.01 level.

Enter the measure of YVZ in degrees

Answers

Answer:

(3x+5)+(2x) = 90

5x + 5 = 90

5x = 85

x = 17

YVZ = 3×17 +5

=56°

Yeah the answer is just had the same question 56

Someone please help me answer this!1

Answers

Answer:

16 km is the answer

Step-by-step explanation:

a (Colton to parents' house) = 12 km

b = ?

c (parents' house to grandparents' house) = 20 km

According to the Pythagoras theorem,

a² + b² = c²

12² + b² = 20²

144 + b² = 400

b² = 400 - 144

b² = 256

b = 16

∴ Colton is 16 km away from his grandparents' house.

3 cm
.
.
5 cm
If the base is halved and the height is quadrupled, then which of the following statements
about its area will be true?

Answers

Answer:

I think 7

Step-by-step explanation:

if the moon is purple then what toothpaste do u use on your but

PLZ HURRY
The two triangles below are similar. What is the ratio of the corresponding sde lengths? A. 4:9 B. 4:2 C. 26:26 D. 4.5:2​

Answers

Answer:

Step-by-step explanation:

It is 4:9   and 4.5:2

PLS ANSWER QUICK! Thanks!

Answers

Answer:

The correct answer would be [tex]a=\sqrt{c^2-b^2}[/tex]

Step-by-step explanation:

given [tex]a^2+b^2=c^2[/tex] we want to solve for a

How?

We can do this by using basic algebra ( isolating the variable (a ))

Step 1 subtract [tex]b^2[/tex] from each side

[tex]a^2+b^2-b^2=a^2\\c^2-b^2=c^2-b^2[/tex]

now we have [tex]a^2=c^2-b^2[/tex]

step 2 take the square root of each side

[tex]\sqrt{a^2} =a\\\sqrt{c^2-b^2} =\sqrt{c^2-b^2}[/tex]

we're left with [tex]a=\sqrt{c^2-b^2}[/tex]

Hence your answer is A

find the size of each sample needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume that we want a 95% confidence level and that the error is smaller than 0.03.

Answers

Answer:

sample

Step-by-step explanation:

Steve manages a skate park and he has been analyzing the attendance data. Steve finds that the number of visitors increases exponentially as the temperature increases, and this situation is represented by the function f(x) = 5x. Steve also finds a linear equation that models the number of people who leave the park early depending on the change in temperature, and it is represented by g(x) = −x + 6. The graph of the two functions is below. Find the solution to the two functions and explain what the solution represents.

Answers

Answer:

(1, 5)

Step-by-step explanation:

Both of the graphs include infinite number of points.

The solution is the common point that belongs to both of the graphs, their intersection, which is the point (1, 5)

This is the point when the temperature change is positive 1 degree.  At this point number of visitors is equal to number of those leaving the part early (5 visitors).

Answer:

(1,5)

Step-by-step explanation:

The graphs intersect at (1,5). At this point, the temperature change is 1 degree and the number of visitors is equal to those leaving early, which is 5 visitors.

a picture frame is 4 inches taller than it is wide and has an area of 192 square inches. What are the dimensions of the picture frame? using the quadratic method

thank you :)

Answers

Answer: width is 12, length is 16

Step-by-step explanation:

A= l*w

l=w+4

A=w(w+4)

[tex]A=192\\192=w^{2} +4w\\0=w^{2} +4w-192[/tex]

factor

(w+16)(w-12)

w= -16 or w=12

width is 12, length is 16

Giving brainliest!!!!!

Answers

Answer: V = 434cm³

6 x 10 x 5 = 300
4/3 x π x r x 4³ = 268.08257310633

268.08257310633 + 300 = 434.041286553

Answer:

434 [tex]cm^3[/tex]

Step-by-step explanation:

volume of bottom: 6 x 10 x 5 = 300 [tex]cm^3[/tex]

volume of top:

[tex]V = (\frac{4}{3}\pi r^3)/2\\\\= (\frac{4}{3}\pi(4)^3)/2\\[/tex]

≈ 134.041 [tex]cm^3[/tex]

300 + 134.041 = 434.041

they want to the nearest tenth, so it would just be 434.0

please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

√11 = 3.31....

option 1. Irrational: √11 = 3.3

Answer:

Irrational [tex]\sqrt{11}[/tex] = 3.3

Step-by-step explanation:

Have a nice day!! :)

Find the slope of the line.
Please Help

Answers

the slope should be y=3x

18 out of 20 to percentage

Answers

Answer:

90%

Step-by-step explanation:

That would be 90% as it is equivalent to 9/10 or 90/100

The quadrilateral shown is a rectangle. What is m∠ZVY?
A) 39°
B) 59°
C) 61°
D) 119°

Answers

Answer: hey bro i can solve this for you but you need to show the quadrilateral. without it i can't solve it.

Step-by-step explanation:


Find the sum of the following arithmetic series:
(a) 6-5-16 - .... -115 (b) 21
(c) 13 + 6 -1 - .... -106
Find the sum of the first 500 odd numbers.

Answers

Answer:

12345678910

Step-by-step explanation:

CHARRRRRRRRR joke lang bestie

Evaluate the expression: -(8 - 12) + 6° + (-4)2.

Answers

Answer:

-4 + 6°

Step-by-step explanation:

- (8 - 12) + 6° + (- 4)2 = - ( - 4) + 6° - 8 = 4 + 6° - 8 = - 4 + 6°

the y coordinate is 7 more than the x coordinate

Answers

Answer:

if you have the value of x then y =x +7

Question 7 (5 points)
Find the distance between a point (-3, 4) and a vertical line at x = 4.
A) -7
B) 8
O
C) 1
OD 7

Answers

Answer:

D.7

Step-by-step explanation:

[tex] 4 - ( - 3) = 4 + 3(because \: - \times - ) \: it \: is \: positive \\ = 7[/tex]

8x^2+1/9
the expression represents a....
quartic
cubic
quartic
linear
quadratic

Answers

Answer:

A. Quartic

Step-by-step explanation:

I went to desmos graphing,

8x^2+1/9 (plug it in and looked at the line)

It shows a parabola,

y-intercept: (0,0.111)

"Cubic functions. Three points not in a line determine a parabola, a polynomial function of degree 2. Polynomials of degree 2 are quadratic functions. Their graphs are parabolas."

Therefore, this is a quadratic ( quartic) since the degree in this parabola is 2.

What is the value of x and y?

Answers

Answer:

Step-by-step explanation:

[tex]\frac{x}{42}=tan 30=\frac{1}{\sqrt{3} }\\x=\frac{42}{\sqrt{3} } \times \frac{\sqrt{3}}{\sqrt{3}} =14\sqrt{3} \\\frac{42}{y} =\cos ~30=\frac{\sqrt{3}}{2} \\y=\frac{84}{\sqrt{3}} \times \frac{\sqrt{3}}{\sqrt{3}} =\frac{84 \sqrt{3}}{3} =28 {\sqrt{3}}[/tex]

Other Questions
please help i will give you brainliest!!!!! Read the following passage from "Tokyo."She got up, swung the rucksack on her back, and walked away from the river. As she strolled along a side street, she noticed a hut which seemed to consist of old boards nailed haphazardly together. Going to the door, she called out, "Tea for sale! Would anyone like some tea?" The door opened and in the entrance appeared a woman dressed far more poorly than Ryo herself."How much does it cost?" asked the woman. And, then, seeing the rucksack, she added, "Come in and rest a while, if you like. I'll see how much money we've got left. We may have enough for some tea."Ryo went in and put down her rucksack. In the small room, four sewing women were sitting on the floor around an oil stove, working on a mass of shirts and socks. They were women like herself, thought Ryo, as she watched their busy needles moving in and out of the material. A feeling of warmth came over her.Which of the following best describes the mood created by the situation and the setting? A. anxious B. content C. grateful D. relaxed HURR FAST MARK AS BRAINIEST PLS HELPPPPPPPPPPPP BRAINLY A ball falls down 30 meters from the top of a building. If the ball weighed 1.2 kg, what is the gravitational potential energy lost by the ball? Estimate g as 9.81. Political bosses, please help! Will give brainliest. On June 30, 2017, Wisconsin, Inc., issued $200,200 in debt and 19,300 new shares of its $10 par value stock to Badger Company owners in exchange for all of the outstanding shares of that company. Wisconsin shares had a fair value of $40 per share. Prior to the combination, the financial statements for Wisconsin and Badger for the six-month period ending June 30, 2017, were as follows: Wisconsin Badger Revenues $(1,050,000) $-402,000 Expenses 732,000 293,000 Net income $(318,000) $-109,000 Retained earnings, 1/1 $(810,000) $-223,000 Net income (318,000) -109,000 Dividends declared 103,000 0 Retained earnings, 6/30 $(1,025,000) $-332,000 Cash $72,000 $86,000 Receivables and inventory 460,000 252,000 Patented technology (net) 928,000 328,000 Equipment (net) 726,000 648,000 Total assets $2,186,000 $1,314,000 Liabilities $(531,000) $-512,000 Common stock (360,000) -200,000 Additional paid-in capital (270,000) -270,000 Retained earnings (1,025,000) -332,000 Total liabilities and equities $(2,186,000) $-1,314,000 Wisconsin also paid $36,200 to a broker for arranging the transaction. In addition, Wisconsin paid $47,800 in stock issuance costs. Badgers equipment was actually worth $780,000, but its patented technology was valued at only $299,200. What are the consolidated balances for the following accounts?Net Income 281,800Retained Earnings 1/1/15 810,000Patented Technology 1,227,200GoodwillLiabilities 1,243,200Common Stock 553,000 Additional Paid-In Capital 801,200 HELLLLLP ME DON'T GO PAST THIS QUESTION!!!!!! JUST AREA WITH COMPOSITE 3D SHAPES!!!! 100 POINTS!!!!! In a population with 100 rabbits there are 16 that are albino, with tworecessive genes for albinism. In this population, what is the genefrequency for the albino allele?16160.40.84 What number must be divided by 15 3/4 so that the quotient is 60? PLEASSSEEE HELLPPPWhat is the product if q and r are positive integers?ABCD**I cannot type the answers and part of the question on here, so please refer to the image I attached** and will get branlist Why is Constantine important to Christianity? 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(1 point) apolytheism breligious tolerance cseparation of Church and state dpersecution of pagans I dont get it honestly whats 1girl + 1 girl= which sentence most clearly makes use of a similie What environment are affected by animals cloning What were the Articles of Confederation? Can someone please help i cant tell which side the base would be and i dont understand- i will mark brainliest if correct- Thanks !! Whats the answer for this how to say butt in spanish