Answers
Answer:
Step-by-step explanation:
that the A on the triangle is pointed in the opposite direction should help you decide what happened.... how far around do you have to turn to be facing in the opposite direction?
if you said 180 ° , you'd be right :)
180 is the green choice, that looks good
Related Questions
If f(x) = 2x+ 1, then f(3) =
i cant really seem to understand how to work it out.
Answers
Answer:
f(3) = 7
Step-by-step explanation:
f(x) = 2x + 1
f(3) = 2(3) + 1
f(3) = 6 + 1
Substitute the 3 in for x.
f(3) means that x is equal to 3.
This just means we substitute the value of 3 into the f(x) = 2x+ 1 to get
f(x) = 2(3)+ 1,
f(3) = 2(3)+ 1,
f(3) = 6+ 1,
f(3) = 7
what the perimeter and area of this shape?
Answers
Answer:
P = 55 feet
A = 237 sq feet
Step-by-step explanation:
P = 2(4) + (3.14 x 15)
A = (4 x 15) + (3.14 x 7.5²)
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.
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*
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.
y=x^2+14x+3
what’s (x,y)
Answers
Answer:
(-7, -46)
Step-by-step explanation:
help me..............
Answers
Answer:
b
Step-by-step explanation:
Answer: 6.30
Step-by-step explanation:
4 and below let it go, five and above give it a shove
The 5 in the thousandths place tells us that we need to raise the 9 in the hundredths place to 10, so we have to carry the 1 to the tenths place and add 2 + 1
6.295
6.30
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%
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.
Find the distance between the points (6, -2) and (9,4)
Answers
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]
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
18 is 32% of what number w
Answers
Answer:
56.25
Step-by-step explanation:
100% of 56.25 is 56.25, therefore 32% of 52.25 equals 18
Solve for t. t - 5/ 6 = 5/ 6
Answers
Answer:
t = 0
Step-by-step explanation:
Answer:
t = 5/3
Step-by-step explanation:
t - 5/ 6 = 5/ 6
t = 5/6 + 5/6
t = 10/6
t = 5/3
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%
Hannah claims that people who live in southern states spend 9 hours more per week outside than do people in northern states. She selects a random sample from each group. The mean number of hours per week that people in southern states spent outside is 18.6, and the mean number of hours per week that people in northern states spent outside is 14.4. A 99 percent confidence interval to estimate the difference in population means (southern minus northern) is (0.4,8.0).
Answers
Answer: Hello your question is incomplete below is the missing part
Which of the following statements about Hannah’s claim is supported by the interval?
A) Hannah is likely to be incorrect because the difference in the sample means was 18.6−14.4=4.218.6−14.4=4.2 hours.
B) Hannah is likely to be incorrect because 9 is not contained in the interval.
C)The probability that Hannah is correct is 0.99 because 9 is not contained in the interval.
D)The probability that Hannah is correct is 0.01 because 9 is not contained in the interval.
E)Hannah is likely to be correct because the difference in the sample means (18.6−14.4=4.2)(18.6−14.4=4.2) is contained in the interval.
Answer : Hannah is likely to be incorrect because 9 is not contained in the interval. ( B )
Step-by-step explanation:
The statement that is supported by the interval in Hannah's claim is that
Hannah is likely to be incorrect because 9 is not contained in the interval.
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)
Gabrielle is 9 years younger than Mikhail. The sum of their ages is 75 . What is Mikhail's age?
Answers
Answer: We know Gabrielle is 9 yrs younger than Mikhail hence it will be x-9 yrs. Sum of their ages is 87. Mikhail's age is 48 yrs.
HOPE THIS HELPS
A sports ball has a diameter of 18 cm find the volume of the ball
Answers
Answer:
volume= 3054.86cm^3
Step-by-step explanation:
Evaluate 2x3 - 3x2 + 4 for x = - 2.
Answers
Answer:
0 or 1.110838652
Step-by-step explanation:
Your answer
PLS SOMEONE HELP AND NO LINKS PLS
Answers
Answer:
71
Step-by-step explanation:)
cylinder with radius of 5 and height of 4 surface area
Answers
Answer:
answer attached
Step-by-step explanation:
Question
Question: 1-1
AACPS Geometry Standard Assess Q3 20-21 ONLINE
Selected Response: 1 point for answer only.
Examine the figure below
Note: Figure
not drawn to
scale.
The Mars Rover Curiosity is sending signals that it is driving into a crater at an angle of depression of 53º.
If the rover covers a horizontal distance of 110 meters, what vertical distance has it traveled? Round your answer to the nearest thousandth.
O 137.735 meters
82.891 meters
87.850 meters
145.975 meters
Constructed Response: Work and answer will be scored on a 3 point rubric. Please answer in the space provided.
After conducting a few experiments, the rover completes its journey by exiting the crater at a different location from where it entered. The rover travels up and out
Pause
Next
e
Answers
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
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
Trey made 104 for 8 hours of work. At the same rate, how many hours would he have to work to make 221?
Answers
Answer:17
Step-by-step explanation:
first off find the rate in which he made in an hour.
so 104/8 which is 13. then divide 221 by 13 and u get 17.
17 hours
Pls Need Help! Thank you
Answers
Answer:
y = [tex](\frac{1}{2})^{-x} +4[/tex]
Step-by-step explanation:
In order to achieve the following transformation we need to do the following. To get the graph to be reflected accross the y-axis we need to change the sign of the x variable. Since the x-variable in this scenario is a positive we would change it to a negative. Next, we want to shift the graph 4 units up. To do this we simply need to add 4 to the entire equation. This would result in the following equation.
y = [tex](\frac{1}{2})^{-x} +4[/tex]
Both of these graphs can be seen in the image below.
A root of the equation x^3-x-11=0 correct to four decimal places using bisection method is...?
Answers
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
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
