12 The acute angle between the vectors ( 1 k 2 ) and ( 0 -1 1 ) is 45° Calculate the possible values of k

the answer is -1/4 but i have no clue how to reach it, thanks. ​

Answers

Answer 1

The confidence interval of p±E is 0.555±0.444

Definition of confidence interval-A Confidence Interval is a region constructed using sampled data, of fixed size, from a population (sample space) following a certain probability distribution. The interval is constructed to contain a chosen population statistic with prescribed probability.

A confidence interval, in statistics, refers to the probability that a population parameter will fall between a set of values for a certain proportion of times. Analysts often use confidence intervals than contain either 95% or 99% of expected observations. Thus, if a point estimate is generated from a statistical model of 10.00 with a 95% confidence interval of 9.50 - 10.50, it can be inferred that there is a 95% probability that the true value falls within that range.

Given:-0.111<p<0.999=Confidence interval. we have to express it in the form p±E.

Explanation:-The midpoint of the interval is p.

p=[tex]\frac{0.111+0.999}{2}[/tex]=0.555

Next the error term E is the distance from p to the end of the interval.

E=0.999-0.555=0.444

So, finally we get the answer as p±E=0.555±0.444

The final answer is p±E=0.555±0.444

To learn more about confidence interval visit:

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Related Questions

Out of the 125 children at summer camp, 45 signed up for swimming and 38 signed up for arts and crafts. Twelve students who signed up for swimming also signed up for arts and crafts. If a child is randomly selected, what is the probability that they are signed up for swimming, if it is known that they did not sign up for arts and crafts? Please help!​

Answers

Answer:33/125

Step-by-step explanation:

First, you subtract 12 from 45, because there were 45 who signed up for swimming and 12 of them also signed up for arts and crafts. So, there are 33 children, out of the 125, who only signed up for swimming. Which means there is a 33/125 chance that a child who only signed up for swimming is randomly selected.

Math Journal Brian says that the expressions 2(x + 2) and 3(x + 1) + 1 are
equivalent because they name the same value when x = 0. Is Brian's reasoning
correct? Explain.

PLEASE HURRY

Answers

4(x + 2) your welcome

Step-by-step explanation:

if 2(0+2)=0+4=4 Answer

3(0+1)+1=(0+3)+1=4 Answer

hope it helps

Ms reynolds has 5 pounds of clay for her art club. If she divides the clay into 1 third pound pieces, how many pieces will she have?

Answers

Answer:

15

Step-by-step explanation:

Total quantity of clay = 5 pound

Now, Reynolds  divides the clay into 1 third pound pieces.

this means each piece of clay weighs = 1/3 pounds

Therefore, number of pieces of clay = Total weight of clay/ weight of each piece

= 5/(1/3) = 15

State if the three numbers can be the measures of the sides of a triangle.
9,8,5
Yes
No

Answers

Answer:

Yes9, 8 and 5 can be the measures of the sides of a triangle

Explanation:

because

9 < 8+5 8 < 9+55 < 9+8

All sides will reach each other

I need help with this question ( see image). Please show workings.​

Answers

Answer:

(a) ∠KHG = 120°

(b) (i) KG = 15.625 km

(b) (ii) bearing of G from K = 240°

Step-by-step explanation:

(a) 360° - 290° = 70°

∠KHG = 70° + 50° = 120°

(b) (i) ∠KGH = 26°

∠GKH = 34°

KG = 7.875 + 7.75 = 15.625 km

(b)(ii) Bearing from G from K = 110° + 130° = 240°

In triangle ABC, where triangle B is the right angle, side AB has a length of 6 cm and side BC has a length of 10 cm. What is the length of side AC? A. 4 cm B. 6 cm c. 11.66 cm D. 8 cm

Answers

Answer:

11.66cm (c)

Step-by-step explanation:

Apply the phuthagorean theorem

Side opposite to the right angle in triangle is AC

AC²=ab²+bc²=10²+6²=100+36=136

We need AC so take the square root of 136 which is 11.66 as the answer

donner l'écriture scientifiques des nombres ci-dessous
500 000 000=
650 000=
58 400 000 000=
0,000 6=
0,000 032=
0,000 000 072 3=

Answers

Answer:

Step-by-step explanation:

salut :

500 000 000= 5× 10^8

650 000= 6,5 ×10^4

58 400 000 000= 5.84 ×10^8

0,000 6= 6×10^-4

0,000 032= 3.2 ×10^-4

0,000 000 072 3= 7.23 × 10^-8

0,000 000 072 3=7,23×10^-7

A company buys a digital scanner for $12,000. 
The value of the scanner is $12,000 (1 - n/5 ) after years. 
The
company has budgeted to replace the scanner when the trade-in value is $,400. 
After how many years should the
company plan to replace the machine in order to receive this trade-in value?

Answers

Answer:

it will be n=4

Step-by-step explanation:

12,000 1-n/5 =2,400n

12000-12000=2,400

2,400-12000=-9600

                      -2400  n=4

The designer wants to plant new flowers around the pond. How many feet of flowers would she need to plant in this new design? Round to the nearest hundredth. Show your work.

Answers

Answer: 1,257.14 ft

Step-by-step explanation:

The question is missing the vital detail of the diameter or radius of this circular pond which I found to be 400 feet.

The plants are to be planted around the pond which means that they are to be planted around the circumference of the pond.

The number of feet of flowers to be planted is therefore the circumference.

Circumference = π * diameter

= 22/7 * 400

= 1,257.14 ft

You have to write a equation

Answers

Answer:

y = 3 sin 4x

Step-by-step explanation:

For y = a sin bx,

a is the amplitude which is the crest of the graph. In this case a = 3 from the given graph.

Now, b is associated with the period where; b = 2π/period

From the graph the period which is the time between where the graph crosses the x-axis = π/2

Thus; b = 2π/(π/2)

b = 4

Thus,equation is; y = 3 sin 4x

What is the value of sin(F)?
1 point

4/3
3/5
4/5
3/4

Answers

Answer:

the value of sin(F) is 3/5

what is 79% of 800? that's all the questions but I can ask it cuz apparently it's to shirt but what is 79% of 800?​

Answers

Answer:

the answer is 632

Step-by-step explanation:

that is %79 of 800

Answer:

79% of 800=632

Step-by-step explanation:

Change 79% to .79

Then, multiply .79 by 800.

Your answer should be 632.

Please answer!!!!! Im in the middle of this test and im not sure what the answer to this is!

Answers

Answer:

Increase of 8

Step-by-step explanation:

x = y-8

y=x+8

Answer:

Ummm try -4 akfkaf cuz I think it is girly lolll im so goofy

Step-by-step explanation:

Help please *no links*

Answers

Answer in photo below
42, 24, 48

Una persona ahorra todos los meses el mismo monto de dinero durante 1 año. Si luego de este tiempo reunió $243.000 ¿Cuánto dinero guardo cada mes?

Answers

Answer:

Ahorro por mes= $20.250

Step-by-step explanation:

Dada la siguiente información:

Ahorro total= $243.000

Número de meses= 12

Voy a suponer que empeza a ahorrar desde los cero $.

Debemos usar la siguiente formula:

Ahorro por mes= ahorro total / número de meses

Ahorro por mes= 243.000 / 12

Ahorro por mes= $20.250

Help please i need this last question

Answers

Answer:

(D) or 703.4^2 is the answer here.

Step-by-step explanation:

Well I would imagine this.

Imagine a cylinder right and its liek a soda can. If you cut the middle straight down (which is the height) and you pull out the whole sheet and flatten it, you get a rectangle. You have the height but no width. The width can be found be finding the Circumfrnce of the circle or the perimeter of the circle on top.

Circumfrence formula is C=dπ or in this case the radius is 7, double the radius which would be 14 and the diameter, multiply that by π, you’d Get 43.98229 smth.

Now you have the surface for that rectangle or the surface recall for the whole cylinder except for the top and bottom, you just gotta find the top and double it!.

The area of a circle is a=πr^2

Raidus in. This case is 7, 7^2=49. 49π double it (top and bottom) is 307 smth Yu add those two up and you’d get 703.4 smth so the answer is (D).

Solve the right triangle. Round decimal answers to the nearest tenth.
B
14
6
А
b
С
In AABC, ~ .mA
7, and m_B~

Answers

Answer:

b=12.6

m<A=25.4

m<B=64.6

A rectangular tank measures 14 cm by 9 cm by 10 cm. What is the volume of the tank in cubic centimeters?

Answers

1260cm cubed.........…........

15. Hassan is solving x2 + 8x = 6 by
completing the square. His first steps are
shown below.
x? + 8x + C = 6+C
(x + Vc)* = 6+C
a. What is the value of c?

Answers

Answer: I took a screenshot of the anser hope this helped

Step-by-step explanation: ok after i did x=-4+/22 and got =0.69041575 and i am going to but the screen shot

pleas make brainly

3 liters of milk divided by 20

Answers

Answer:

0.15 Per person/number!

Step-by-step explanation:

3liters divided by 20

Please helpp

How much money would you have after 7 years if you invested $12,000 at 2% compounded annually?

Answers

Answer:

13,784

Step-by-step explanation:

What us the measure of the missing angle?

Answers

Answer:

None of them

Step-by-step explanation:

Because 30+135+45 add up to 210 then if you add 30, or 45 degrees it will be more than 180 degrees. If you subtract -15 from 210 you will get 195 which is still not right. So the best  answer is none of the above

Hope this helps

Please help I’m not too good with polynomials

Answers

Answer:

D

Step-by-step explanation:

A polynomial is an expression with variables, and this expression does not have a variable. So, answer D is not a polynomial.

If Savannah increases her protein intake from 45g to 54g in order to stay competitive in volleyball. What is the percentage increase of her protein intake?

Answers

20% :) you can find the percentage difference between the numbers to make it easier

Help this is due in 2 minutes

Answers

Answer:

72

Step-by-step explanation:

because 60 * 0.05 is 3

3*4=12

60+12=72

Answer: 72

I think I’m not really that sure

I need this answer as soon as possible will give brain thing

Answers

Answer: X=5 so whats 3 + 5? easy, 8. so now you know the bottom is eight and since it's a rectangle the top is also 8. And the left side is 15 so we know the right side is also 15. To find the perimeter you add all the sides of which in this case it would be 8 + 8 + 15 + 15. or (8 times 2) + (15 times 2). = 46 the answer is 46

Step-by-step explanation:

iykutjrhgyjukftrjrhter

Answers

Answer:

c

Step-by-step explanation:

Im not the best at that hope it helped tho

can SOMEBODY HELP ME WITH THIS LESSON I NEED HELP ASAP !!​

Answers

Answer:

what's your question? I'm here to help if I can.

HELP I AM TIMED AND EXPLAIN HOW YOU GOT IT

Answers

Answer:

C) p + 3 < 20

Step-by-step explanation:

Since the max is 20, it has to be < 20

p + 3 < 20

es > My H
What do you notice about this segment of the graph?
Bake Stars' Oven Temperature as a function of Time
The line on the graph
slopes up.
Pre
Temperature (°F)
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
The temperature is
increasing
The segment is linear.
0
10 20 30 40 50
60
70
80 90 100
Prev
Ne

Answers

Answer:

The temp is increasing

Step-by-step explanation:

I just did it

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