Answers
Answer:
w² - 2w + 4
Step-by-step explanation:
(w² - 4w + 14) - (2w + 10) = w² - 2w + 4
Related Questions
Solve the equation for all real solutions in simplest form.
-3w^2-10w+1=\,\,-4w^2−4w 2
Answers
Here is the answer. Let me know if you need any clarification!
A root of the equation x^3-x-11=0 correct to four decimal places using bisection method is...?
Answers
Given the following equations, determine the relationship of the lines they represent: y = 5 and x = 6 .
Answers
Answer:
The answer is perpendicular :]
Step-by-step explanation:
wont waste your time
A local baseball team is struggling this season, and many fans of the team believe it may be time to replace the head coach. To estimate support for firing the current head coach, a television news station provides a link on its website where fans of the team can respond to the question: "Do you feel the current head coach should be fired?" After 2,367 votes on the website, 79% of those who responded felt the coach should be fired. Which of these describes the type of bias in this survey and a likely direction of the bias in estimating overall support for firing the coach?
A) This is nonresponse bias. The result overestimates true support for firing the coach.
B) This is nonresponse bias. The result underestimates true support for firing the coach.
C) This is voluntary response bias. The result overestimates true support for firing the coach.
D)This is voluntary response bias. The result underestimates true support for firing the coach.
Answers
Answer:
Option A
Step-by-step explanation:
Here in this case the respondents differ from the non respondents in more than one ways and hence this results to a nonresponse bias due to which there is an extra thumbs up in support of firing the coach thereby leading to an over estimated number.
Hence, option A is correct
A group of people move a large box that weighs 90 Newtons, 10 meters in 20 seconds, how much power was used?
Answers
Answer:
P = 45 W
Step-by-step explanation:
Given that,
The weight of a box, W = 90 N
Distance moved, d = 10 m
Time, t = 20 s
We need to find the amount of power used. The rate of doing work is called power It can be calculated as the formula,
[tex]P=\dfrac{W}{t}\\\\P=\dfrac{Fd}{t}\\\\P=\dfrac{90\times 10}{20}\\\\P=45\ W[/tex]
So, 45 W of power was used.
Evaluate 2x3 - 3x2 + 4 for x = - 2.
Answers
Answer:
0 or 1.110838652
Step-by-step explanation:
I WILL MARK YOU AS BRAINLIEST IF YOU ARE CORRECT! THIS QUESTION IS SUPER EASY! Look at the image below.
Answers
Answer:
the answer you are looking for is B
Answer:
A
Step-by-step explanation:
Its A.....unless im super dum lol
star time 8:00 a.m elapsed time 5 hours, 15 minutos end time is
Answers
Answer:
1:15 P.M
Step-by-step explanation:
After 5 hours if will be 1:00 P.M and 25 minutes after it turns 1:00 P.M will be 1:15 P.M
Answer:
1 : 15p.m
Step-by-step explanation:
Help me please??ndjfbd
Answers
Answer:
A
Step-by-step explanation:
Becuase the proability of drawing a red marble is 10/20 or 50% and drawing a green marble is 4/20 or 20% and drawing a red marble is 6/20 or 30%
Find the area of the composite figure.
Round to the nearest hundredth.
(10 Points)
20.9m
14.3m
22.7 m
Answers
Answer:
474.43 m²
Step-by-step explanation:
The shape is composed of a rectangle and a parallelogram
Area of the composite shape = area of the rectangle + area of the parallelogram
= Length*Width + base*height
Where,
Length = 20.9 m
Width = 14.3 m
base = 20.9 m
height = 22.7 - 14.3 = 8.4 m
Area = 20.9*14.3 + 20.9*8.4
Area = 298.87 + 175.56
= 474.43 m²
Vending machines can be adjusted to reject coins above and below certain weights. The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram. If a vending machine is adjusted to reject quarters that weigh more than 5.81 grams and less than 5.53 grams, what percentage of legal quarters will be rejected by the vending machine
Answers
Answer: The percentage of legal quarters will be rejected by the vending machine = 2.275%
Step-by-step explanation:
Given: The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram.
Let x be the weights of legal U.S. quarters .
Required probability: [tex]P(x<5.53)+P(x>5.81)[/tex]
[tex]=P(\dfrac{x-\mu}{\sigma}<\dfrac{5.33-5.67}{0.07})+P(\dfrac{x-\mu}{\sigma}>\dfrac{5.81-5.67}{0.07})\\\\=P(z<-4.857)+P(z>2)\approx0.02275 \ \ \ [By\ P-value\ calculator][/tex]
The percentage of legal quarters will be rejected by the vending machine = 2.275%
1. The cost of using a telephone in a hotel meeting room is $0.20 per minute. Which of the
following equations represents the total cost, c, in dollars for h hours of phone use?
a c= 0.20(60h)
b c= 0.20 + 60
d =
Answers
Answer:
A is correct
Step-by-step explanation:
[tex]\frac{0.20}{1min}[/tex] = [tex]\frac{12.00\\}{1 hour}[/tex]
We can scale the ratio to give the most accurate answer.
0.20 X 60 = 12.00
*pls give brainlist*
Solve and graph 4<-1/3n
Answers
Answer:
n<-12
Step-by-step explanation:
4<-1/3n
4<-n/3
4×3<-n
12<-n
-12<n
n<-12
please answer with explanation
Answers
Answer:
5
Step-by-step explanation:
You need to add the bowls and vases. You get 20. Then you divide to get one quarter of then and get 5.
Ringo deposited some money into a savings account. He earned 4% interest. After 6 months he earned $21 in interest. How much money did he start with?
I NEED HELP PLEASE!!
Answers
Answer:
$1050
Step-by-step explanation:
I = PRT / 100
I = 21
P = ?
R = 4%
T = 6 months = 0.5 yr
P = 100I / RT
P = (100 * 21) / (4 * 0.5)
P = $1050
cylinder with radius of 5 and height of 4 surface area
Answers
Answer:
answer attached
Step-by-step explanation:
Need Help ASAP..
Don't put the link or you will get reported and ill reach out to brainley.
Answers
Answer:
5
Step-by-step explanation:
1,1,3,4,4,5,6,6,6,7,9
/ / / / / / / / / /
The answer is 5
Two similar prisms have surface areas of 9
cm² and 16 cm ²?. Find the ratio of their
volumes.
Answers
Answer:
Simplified ratio is 9:16
Step-by-step explanation:
Sophie drew a scale drawing of a house and its lot. The back patio is 3 centimeters wide in the drawing. The actual patio is 18 meters wide. What scale did Sophie use for the drawing?
Answers
Answer: 45?
Step-by-step explanation: Sorry If I'm wrong, I haven't learned this yet but I tried my best.
I'm ABC, the measure of
Answers
Answer: D,E,F,G
It's self explanitory
Answer:
I would say an angle.
Step-by-step explanation:
Which number line shows all the values of a that make the inequality - 3x +1 < 7 true?
Answers
Answer:
Third option
Step-by-step explanation:
The monthly cost for 46 minutes of calls is 12.75. What is the monthly cost for 52 minutes of calls?
Answers
Answer:
$14.41
Step-by-step explanation:
set up a proportion then cross-multiply:
12.75 / 46 = x / 52
46x = 663
x = 14.41
Battery life for a hand-held computer is normally distrituted and has a population standard deviation of 7 hours. Suppose you need to estimate a confidence interval estimate at the 95% level of confidence for the mean life of these batteries. Determine the sample size required to have a margin of error of 0.585 hours. Round up to the nearest whole number.
Answers
Answer:
A sample size of 551 is required.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
Population standard deviation of 7 hours.
This means that [tex]\sigma = 7[/tex]
Determine the sample size required to have a margin of error of 0.585 hours.
This is n for which M = 0.585. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]0.585 = 1.96\frac{7}{\sqrt{n}}[/tex]
[tex]0.585\sqrt{n} = 1.96*7[/tex]
[tex]\sqrt{n} = \frac{1.96*7}{0.585}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96*7}{0.585})^2[/tex]
[tex]n = 550.04[/tex]
Rounding up(as for a sample of 550 the margir of error will be a bit above the desired target):
A sample size of 551 is required.
PLS HELP DUE VERY SOON
3. Consider the following box plot.
(a) Find the interquartile range.
(b) What percent of values is included in the interquartile range?
Answers
Answer:
a. IQR = 2.25
b. 40%
(I'm not sure about B.)
Step-by-step explanation:
a.=Q3 - Q1
=4.7 - 2.2
=2.5
b. =2/5 × 100/1
=40%
I need the volume asap please homework due in 10mins question is a sphere has the inside of it a 9 so what's the volume
Answers
Answer:
Step-by-step explanation:
The volume should be 9 to the second power times 4×3.14
Find the base of a parallelogram with area of 24 and height of 3 3/4
Answers
Answer:
base = 6.4 units or 6 2/5
Step-by-step explanation:
area = bh
24 = b(3.75)
b = 6.4 units or 6 2/5
Answer:
6.4
Step-by-step explanation:
Area = base x height
if height = 3.75 or 3 3/4
Divide
24 ÷ 3.75 = 6.4
base = 6.4
Can somebody please help me!!!!!
Answers
Answer:
Varies
Step-by-step explanation:
What this question is asking you to do is to measure the angle of the blue dot and find the 90 degree angle, so you need to get a protractor and measure the 90 degree angle in order to get the answer
Answer:
Step-by-step explanation:
Find the value of each trigonometric ratio.
Cos C
Help please
Answers
sinx=p/h -----> some people have
cosx=b/h ----> curly brown hair
tanx=p/b -----> through proper brushing
easy way to remember it
we need cos c for this
h= 26 which is always the longest side of the triangle
b= 10
p=24
these both can be switched depending on which angle the question is talking about in this case its angle C so 10 is the base, if it was angle a 24 would have been the base
[tex]cosC=\frac{10}{26} \\[/tex]
Yo please help me!
First image answer choices for all questions
2nd image the questions
Answers
Answer:
Step-by-step explanation:
P' (2,4)
Q' (4,4)
M' (2,1)
K' (4,1)
ARITHMETIC SEQUENCES, what comes next after -2/25? I will Mark you as BRAINLIEST pls help
Answers
Answer:
26/5
Step-by-step explanation:
an=a1+(n-1)d
d is common difference
so,
2/5- (-2)=12/5
putting values in above formula
=-2+(4-1)(12/5)
=-2+3(12/5)
=-2+(36/5)
=26/5