which decimal is equivalent to -9/4​

Answers

Answer 1

Answer:

-2.25

Step-by-step explanation:

1/4=0.25

0.25 times -9= -2.25


Related Questions

A recent survey of 252 customers, selected at random from a database with 12,861 customers, found that 208 are satisfied with the service they are receiving. Find the upper bound of a 99% confidence interval for the percentage satisfied for all customers in the database.

Answers

Answer:

The upper bound of a 99% confidence interval for the percentage satisfied for all customers in the database is 88.70%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

Sample of 252 customers, 208 are satisfied:

This means that [tex]n = 252, \pi = \frac{208}{252} = 0.8254[/tex]

99% confidence level

So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8254 + 2.575\sqrt{\frac{0.8254*0.1746}{252}} = 0.8870[/tex]

As a percentage:

100%*0.8870 = 88.70%

The upper bound of a 99% confidence interval for the percentage satisfied for all customers in the database is 88.70%.

A rectangular prism has a length of 4 feet a height of 14 feet and a width of 2 feet what is its volume in cubic feet?

Answers

Answer:

112 cubic feet

Step-by-step explanation:

The answer is 112 cubic feet:

Why: Area of Rectangular Prism= L x W x H(LenghtxWidthxHeight)

                                                        4 x 2 x 14 = 112

What is the height of the tree in the figure to the nearest tenth of a foot?
h
40°
75 ft

Answers

I think that would be B 0.11

What is the value of the expression 2 + 4x (3 + 7) *

Answers

Answer:

20=4x

Step-by-step explanation:

if finding x divide by 4 and x=5

A scale drawing of a park is 1 inch equal to 15 feet. What is the actual area of the park?

Answers

Answer:

Step-by-step explanation:

To get the current area of the park you must multiply by 15 the number of inches indicated on the map.

Find the angle which is vertical

Answers

Answer:

<2

Step-by-step explanation:

A vertical angles are "pairs of opposite angles made by two intersecting lines." We can see that the same two lines that form <5 form an angle opposite to it, <2.

Calculate the Surface Area Of the Figure Below. Please Help Thank you !

Answers

Answer:

A = 2 ( w l + h l + h w)

A = 2 (2*8+4*8*4*2)

A = 112 units cubed

Find the component form of the resultant vector.
u=-12i + 35j
Find: -8u
A) 10V 47 - 1 + 10j
B) -40i + 35j
C) 961 – 280j
D) 151 – 5V3.j

Answers

Answer:

C) 96i – 280j

Step-by-step explanation:

Multiplying vector by constant:

When a vector is multiplied by a constant, each component of the vector is multiplied by this constant.

In this question:

u = -12i + 35j

-8u = -8(-12i + 35j) = (8*12i - 8*35j) = 96i - 280j.

The answer is C) 96i – 280j

Use side ratios to determine if the triangles in each pair are similar. If so, complete the similarity statement. NO LINKS!!!​

Answers

9514 1404 393

Answer:

  3)  ΔQRS ~ ΔQFG

  5)  ΔRST ~ ΔGFE

Step-by-step explanation:

3) Shortest to longest, the side ratios are ...

  RQ : QS = 6 : 12 = 1 : 2 (reduced)

  FQ : QG = 2 : 4 = 1 : 2 (reduced)

  ΔQRS ~ ΔQFG

__

5) FE : EG : GF = 18 : 24 : 26 = 9 : 12 : 13 (reduced)

  ST : TR : RS = 27 : 36 : 39 = 9 : 12 : 13 (reduced)

  ΔRST ~ ΔGFE

please help i will mark brainlist

Answers

Answer:196.8

Step-by-step explanation:brainlyest plz plz I need it for my rank

196.8 because you have to multiply 8•12 and 2.05

solve for b
b − 326 = 411

Answers

Answer:

b = 737

Step-by-step explanation:

b - 326 = 411

  + 326 +326

b = 737

Answer:

b = 411 - 326

b = 85

I hope this will be helpful

of the exam form that you MUST che
Question 1 Multiple choice Worth points)
(08.02)The calculated average of a data set best describes which of the re
Mean
The calculated average of a data set best describes which of the following?

Answers

Answer:

A. Mean

Step-by-step explanation:

Mean can also be described as the average of a data set.

The calculated average of a data set is the sum of all data values divided by the number of data values we have in a data set. This is the same as the mean.

For example, let's say you bought 5 t-shirts. The cost of the 5 t-shirts can be regarded as a data set, which are: $10, $10, $11, $12, and $15.

The average cost of t-shirt bought by you can be calculated as:

Average = Mean = (10 + 10 + 11 + 12 + 15)/5

= 58/5

= 11.6

The average cost of t-shirt you bought, which is also the mean cost of t-shirt is $11.6

What is the product of the polynomials below?

Answers

Answer:

D

Step-by-step explanation:

the answer of the question above is

-3x⁵-7x³+ 18x² + 42

Answer:  Choice D

-3x^5 - 7x^3 + 18x^2 + 42

===================================================

Work Shown:

(3x^2 + 7)(6 - x^3)

y(6 - x^3) ........ let y = 3x^2+7

y*6 - y*x^3 ..... distribute

6y - x^3y

6( y ) - x^3( y )

6( 3x^2+7 ) - x^3( 3x^2+7 ) ..... plug in y = 3x^2+7

6*3x^2 + 6*7 - x^3*3x^2 - x^3*7 .... distribute twice more

18x^2 + 42 - 3x^5 - 7x^3

-3x^5 - 7x^3 + 18x^2 + 42

13. Suppose the probability of passing a driving test is 65%. (a) On a certain afternoon 15 people are tested. (i) What is the expected number of people who pass

Answers

Answer: 9

Step-by-step explanation:

Based on the information given in the question, the expected number of people who pass will be calculated as:

= Probability of passing the driving test × Number of people tested

= 65% × 15

= 0.65 × 15

= 9.75

Therefore, expected number of people who pass is 9.

what is the volume of a rectangular prism with a length of 4 a width of 6 and a height of 2?​

Answers

Answer: Volume = 48

Step-by-step explanation:

V = L * W * H

V = 4 * 6 * 2

V = 48

which geometric series converges?
a. 1/6+1/6+1/6+1/6
b. 1/6+2/6+4/6+8/6
c. 6+12+24+48
d. 6+2+6/9+6/27

Answers

Answer:

D

Step-by-step explanation:

Ed2021

The series 6+2+6/9+6/27 is a required converging geometric series. Option D is correct.


Which geometric series converges is determined from the options below

a. 1/6+1/6+1/6+1/6    b. 1/6+2/6+4/6+8/6   c. 6+12+24+48  d. 6+2+6/9+6/27.

What is geometric progression?

Geometric progression is a sequence of series whose ratio with adjacent values remains the same.

Options A B and C have been omitted because the series given in the corresponding option has the increasing order. Option D has a decreasing order with the common ratio between the preceeding values of the series being 1/3. Thus option D is the correct option.

Thus, the series 6+2+6/9+6/27 is a required converging geometric series. Option D is correct.

Learn more about geometric progression here: https://brainly.com/question/4853032

#SPJ2

Aidans rug is 7 feet long and 5 feet wide what’s the area

Answers

Answer:

35

Step-by-step explanation:

You need to multiply 7 x 5, You get 35. Hope this helps!

Area is Length times Width so here you would multiply 7 by 5 in which you get 35
35 is the answer

PLEASE HELP PLEASE!!
Find the limit of the function algebraically. (2 points) alt='limit as x approaches zero of quantity negative seven plus x divided by x squared.'

Answers

9514 1404 393

Answer:

  negative infinity

Step-by-step explanation:

The numerator approaches -7 as x approaches 0 from either direction.

The denominator approaches 0 from above, as x approaches 0 from either direction.

Hence, the rational expression approaches -∞ as x approaches 0 from either direction.

The limit is -∞.

Help me with this problem!!!!

Answers

Good morning. I’m sorry to say I can’t really see what the numbers are in your photo. I zoomed in and circled what I could on my picture.

For your first question (6), subtract the difference between the two points that I have circled. Each of those marks the upper quartile for each team.

For (7), I need to know which line or dot is 210. If it’s the line in the middle of the box, the answer is 50%. If it’s the line at the right side of the box, the answer is 75%

For (8), again, I need your help to know where 220 is.

If you can put some answers in the comments, I’m happy to keep helping you.

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was 4 minutes. Use that as a planning value for the standard deviation in answering the following questions. Round your answer to next whole number

Answers

This question is incomplete, the complete question is;

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and preview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal, October 12, 2012). A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was 4 minutes. Use that as a planning value for the standard deviation in answering the following questions. Round your answer to next whole number,

a) If we want to estimate the population mean time for previews at movie theaters with a margin of error of 75 seconds, what sample size should be used? Assume 95% confidence.

b) If we want to estimate the population mean time for previews at movie theaters with a margin of error of 1 minute, what sample size should be used? Assume 95% confidence.

Answer:

a) the required Sample Size is 40

b) the required Sample Size is 62

Step-by-step explanation:

Given the data in the question;

standard deviation σ = 4 minutes

a)

margin of error E = 75 seconds = ( 75 / 60 )minutes = 1.25 minutes

And 95% confidence.

Now, Critical Value of z for 0.95 confidence interval;

∝ = 1 - 0.95 = 0.05

[tex]Z_{\alpha /2[/tex] = 1.96

so, sample size n will be;

n = [ [tex]Z_{\alpha /2[/tex] × σ/E ]²

we substitute;

n = [ 1.96 × (4/1.25) ]²

n =  [ 1.96 × 3.2 ]²

n = [ 6.272 ]²

n = 39.338

Since we referring to a number of sample, its approximately becomes 40

Therefore, the required Sample Size is 40

b)

margin of error E = 1 minutes

And 95% confidence.

Now, Critical Value of z for 0.95 confidence interval;

∝ = 1 - 0.95 = 0.05

[tex]Z_{\alpha /2[/tex] = 1.96

so, sample size n will be;

n = [ [tex]Z_{\alpha /2[/tex] × σ/E ]²

we substitute;

n = [ 1.96 × (4/1) ]²

n =  [ 1.96 × 4 ]²

n = [ 7.84 ]²

n = 61.466

Since we referring to a number of sample, its approximately becomes 62

Therefore, the required Sample Size is 62

Determine the number of real solutions:
1. y = -x? +2 x + 6
2. y = 2x² - 6x + 5
3. y = x² + 8x + 16

Answers

Here is my answer.. correct me if im wrong.

Pwease help this is very important I will give you brain thing if its correct ♡

Answers

C is the correct answer pls give brainiest
the answer is c i’m pretty sure

PLEASE HELP
log (5x – 10) = log (6 – 5x)

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :D, Can I have a Brainliest I really needed it please

HELP MEEE! I NEED IT RIGHT NOW!

Answers

Answer:1/16 for each of us

Step-by-step explanation:

Since only 1/4 is left and you and the teachers are splitting it up,you’d get 1/16 each because the half of 1/4 (1/8) was split into 2 (1/16)

The ratio of pants to shots that John has is 3:7. If John has 12 pairs of pants then how many pants and shorts does he have?

Answers

Answer:

John has 12 pairs of pants and 28 pairs of shorts.

Step-by-step explanation:

Given that the ratio of pants to shorts that John has is 3: 7, if John has 12 pairs of pants, to determine then how many pants and shorts does he have the following calculation must be performed:

(12/3) x 7 = X

4 x 7 = X

28 = X

Therefore, John has 12 pairs of pants and 28 pairs of shorts.

plz plz plz plz help me plz it is due in 1 hour and no links plz​

Answers

Answer:

B

Step-by-step explanation:

The formula for the area of a triangle is given as:

A = ½*base*height

A = ½*b*h

A = (bh)2

If we know the area (A) and the base, to find the height, the following would be done:

Divide both sides by b

A/b = h/2

Multiply both sides by 2

[tex] \frac{A}{b} * 2 = h [/tex]

As we can see here, to find the base, we would divide the area by the vase, then multiply what we get by 2.

Variable c is 9 less than variable w. Variable c is also 3 more than variable w. Which pair of equations best models the relationship between c and w? (5 points)

a
c = w + 9
c = w − 3

b
w = c + 9
w = c − 3

c
c = w − 9
c = w + 3

d
w = c − 9
w = 4c + 3

Answers

B is the right anwser

3.1 The following table shows the employees of a small manufacturing company
cross-classified based on age and work category.
Work category
Age Production Sales
Office Total
Group
<25
50
50
102
25-40
24
50
>40
40
4
10
54
Total
160
30
110
N
3.1.1 Copy and complete the cross-tabulation table above.
[3]
3.1.2 An employee is selected at random from this population. Calculate the
probability that the employee is:
(a) Under 40 years of age.
[1]

Answers

Answer:

please edit this i dont know what all this means yet

Step-by-step explanation:

if sin= 3/4 what are the values of cos 0 and tan 0

Answers

Answer:

Your choice is correct

Step-by-step explanation:

The first choice

1. Name the angle below in four ways. Then classify it as acute, right, obruse, or straight.
Please anwser :/​

Answers

Answer:

Ok so I know the angle is acute

Step-by-step explanation:

because the angle looks smaller than a 90 degree angle...

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