Answer:
3.14
Step-by-step explanation:
A = R*R*3.14
ramon makes a spinner with 4 colors. he colors 25% of the spinner red, 15% blue, 40% orange, and the rest green. ramon then spins the spinner. which outcome would be most likely to happen?
a. the spinner landing on green or red
b. the spinner landing on green or blue
c. the spinner landing on orange or red
d. the spinner landing on orange or blue
Answer:
c. the spinner landing on orange or red
Step-by-step explanation:
So first you find how much is green
25 + 15 + 40 = 80
100 - 80 = 20
So the amount green is 20%
Then you choose the color that has the biggest percentage because it has a higher change of being chosen
25% is red
15% is blue
40% is orange
20% is green
orange and red is the biggest amount/ has the biggest percentage
c is your answer
Draw a quadrilateral with two pairs of parallel sides, with one side measuring 5 centimeters, one side measuring 3 centimeters, and one angle measuring 45 what is the name of the figure you drew?
Answer:
a trapezoid
Step-by-step explanation:
Answer is parallelogram.
Parallelogram:
A two-dimensional geometrical shape, figure with four sides whose opposite sides are parallel and equal.
Here,
It is given that the quadrilateral have two pairs of parallel sides.
It cannot be rectangle as the angles in rectangle should be 90 degrees.
Answer is parallelogram.
Learn more about parallelogram here:
https://brainly.com/question/18137045?referrer=searchResults
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Please can someone help
Which trig ratio would you use to solve for the missing angle measure? 5 A) Cos! 26 26 B Cos-1 5 C) Sin 26 Sin? 26 5
Answer: Choice A) [tex]\cos^{-1} \frac{5}{26}[/tex]
You could also write [tex]\cos^{-1} \left(\frac{5}{26}\right)[/tex] which is the same as writing [tex]\arccos\left(\frac{5}{26}\right)[/tex]
Arccos stands for "arccosine", which is effectively the same as inverse sine. The notation [tex]\cos^{-1}[/tex] means inverse cosine.
We use the cosine rule because
cos(angle) = adjacent/hypotenuse.
isolating the angle leads to
angle = arccos(adjacent/hypotenuse)
We can think of arccosine as an operation to undo the cosine function. It's similar to how division is the opposite of multiplication.
34+35? :)))) answer immediately
Answer:
69
Step-by-step explanation:
30+30=60
4+5=9
60+9=69!
How is math used in making murals?(subject:Collage and Career readiness)
What is the length of the hypotenuse? Make sure you include measurements.
Answer:
90
Step-by-step explanation:
60+30 is 90
The following data are the daily number of minutes of smartphone use for a random sample of 8 students at your institution: 117, 156, 89, 72, 116, 125, 101, 100.
(a) Test the null hypothesis according to which the true mean is 100 min against the alternative that it is different than 100. Use a significance level of 5% (state the null and the alternative hypothesis, the test statistic and the conclusion). (10 points)
(b) Compute a 95% confidence interval for the true mean number of minutes per day a student uses his or her smartphone. Is your finding consistent with your answer in (a) (Explain why or why not)?
Step-by-step explanation:
Number of students = 8
Mean of sample = 876/8
= 109.5
We solve for standard deviation using formula:
S = √(Xi -barX)/n-1
S = 25.3264
A.
H0: u = 100
H1: u not equal to 100
T test = barX - u/s/√n
t = 109.5-100/(25.3264/√8)
= 9.5/8.9542
= 1.0609
Df = 8-1 = 7
P value = 0.953141 at 5% significance level. P-value > 0.05 so we fail to reject H0
Conclusion: insufficient evidence that mean = 100
B.
95% = bar x +-t*s/√n
t = 2.365 at 95% and df = 7
109.5 +- 2.365(25.3264/√8)
= 109.5 +- 2.365(8.9542)
= 109.5-21.1768, 109.5+21.1768
= (88.3232, 130.6768)
In conclusion true mean is in the confidence interval, so it is consistent.
CAN SOMEONE HELP MEEEEE
Answer:
Ok 1 is 54 yards 2 is 225 KM 3 64 Ft
please give braineist I never got 1 thank you maybe we can be friends !!! :) :D
Answer:
Shown in explanation.
Step-by-step explanation:
These type of problems requires the knowledge of Pythagorean Theorem
Pythagorean Theorem: A^2(shorter side 1)+B^2(shorter side 2)=C^2(Longest side also known as hypotenuse)
So, you would just need to know the square roots of the square.
Triangle 1. First square: [tex]\sqrt{36}[/tex]=6 So side length of first one is 6 yd.
Second square: [tex]\sqrt{18}[/tex]=4.24 So side length of second square is 4.24 yd.
Third square: 36-18=18 So the side length is the same as the second square which is 4.24 yd.
Triangle 2. Repeat the process for all of these problems.
First square: [tex]\sqrt{125}[/tex]=about 11.18.
Second square: [tex]\sqrt{100}[/tex]=10.
Third square: 125-100=25. So, [tex]\sqrt{25}[/tex]=5.
Triangle 3. This is an isosceles triangle meaning 2 sides are the same length.
First and Second square are the same. [tex]\sqrt{32}[/tex]=5.66.
Third square=32+32=64. So, [tex]\sqrt{64}[/tex]=8.
Mrs. Allison buys Gucci bags wholesale for 28.00 and marks them up 900% to sell on her de online store, what is the selling price of the bags
Answer:
$288
Step-by-step explanation:
what is 900% of 28?
x = 9 × 28
x = 288
Need help plz and thank u
Answer:
20%
Step-by-step explanation:
12/60 (divided) makes 0.2, converted to a percent is 20%
A researcher studies differences in career goals between boys and girls in middle school. All of the students in the seventh grade schools in a particular county answer a list of questions. What type of study is this?
A. Experiment
B. Sample Survey
C. Observational Study
D. Random Trial
Explanation:
When asking/answering questions like this, a survey is involved. It could be multiple choice or fill in the blank. Multiple choice may be the best way because it's easier to compare data results when you have only a few options. It also gives the computer an easier time too.
We aren't conducting an experiment since the researcher is not directly affecting the people, and instead letting them answer the questions without intervention. Also, note how we don't have two groups of treatment vs control. This is another indication we don't have an experiment.
An observational study is not being done here either. Yes the researcher is observing the survey results, but s/he is not making notes on the individuals before the survey is conducted (ie before the questions are asked). An example of an observational study is having the researcher make a tally of students' hair color. The researcher simply looks at each student, marks the correct tally, and doesn't need to ask the student a question. So you can see that the interactive question/answer portion is not present in an observational study.
The phrasing "random trial" is not a study type. When you hear "random trial" in the news, maybe for a new drug being developed, the news report is implying heavily that an experimental study had been done. This is true with all drug trials. One group is the treatment group that gets the actual drug, while the control group gets a fake drug. The control group thinks they get the actual drug, which is important because if they knew it was fake, then it would invalidate the study. I recommend researching the placebo affect for more information. The two group's results are then computed to see if the drug did in fact cause a change in the subjects or not. You would see this if there's a significant difference between the treatment and control group. Anyway, the "random trial" is not a study type but rather an aspect of an experimental study. It's possible your teacher put this in here to throw off students.
Complete the equation for the horizontal line that passes through (5-7)
Answer:
The point (a,b) is (5,7) . Therefore, the equation of the line is y=7 .
Hopefully this helps!
Step-by-step explanation:
please help i will give extra points
Answer: 1
Step-by-step explanation:
4b-5a
4(4)-5(3)
16-5(3)
16-15
1
Answer:
1
Step-by-step explanation:
4 x 4 - 5 x 3
16 - 15 = 1
PLEASE HELP I AM GIVING BRAINLIEST FOR BEST ANSWER!!!!
Answer:
Im pretty sure its E and C
Step-by-step explanation:
There may be one more:)
Answer:
A D F
Step-by-step explanation:
A: x-3=0
+3 +3
x=3
D: 6= 2x
6/2 =2x/2
3=x
F: x^2 =9
[tex]\sqrt{[/tex]x^2 =[tex]\sqrt{9[/tex]
x=3
Plss help I’ll give Brainliest it help immediately
Answer:
3.61
Step-by-step explanation:
I WILL GIVE BRAINIEST IF ANSWERED WITH EXPLANATION ASAP
Answer: 9 inches.
Step-by-step explanation:
Use a proportion for this problem
2/3=6/x
Cross multiply
2x=18
Simplify
x=9
Answer:
9
Step-by-step explanation:
you find the scale factor by using the new shapes number which would be 3 and its corresponding value from the old shape which would be 2
3/2 is equal to 1.5 so thats the scale factor ud need to use
6*1.5 is 9 so thats the answer
Mr. D'Alton made some radium in his lab. He used 2 kg of the radium every time he
ran his experiment. If he did the experiment four times and had 24 kg left, how much
radium did Mr. D'Alton make at first?
Answer:
32 kg
Step-by-step explanation:
Write 8 1/5 as a fraction
Answer:
8.2
Step-by-step explanation:
let me know if its wrong
An electronics store is having a 15% off sale. Suppose the sale price(p) of a laptop is $495. Which statement are true for this stuation
A. P+ 0.15p represents the sales price
B. P- 0.15p represent the sales price
C. 0.85p represents the sales price
D. The sale price is 420.75
E. The sale price is 569.25
Answer:
The answer to the Question is D
Answer:
B, C, D
Step-by-step explanation:
If the sales price is 15% off, then the the price is .85(100-15%) of the price so c is true
this also makes b true. (100-15%) is p-.15
495 x .85 (100-15%)=420.75 so d is true
How many joules of gravitational potential energy are stored in an object that has a mass of 8.5 kilograms and is held 2 meters above the surface of earth?
Answer:
I believe the answer is 166.6 Joules or (if rounding to the nearest whole number) 167 Joules.
Step-by-step explanation:
Here is the formula to find the gravitational potential energy of an object:
U = m * g * h (potential energy equals mass times gravitational acceleration * the height)
The mass is 8.5 kilograms, the height is 2 meters, and Earth's gravitational acceleration is always, no matter the other values or earthly situations, 9.8 m/s.
Now we solve:
8.5 * 9.8 * 2 = 166.6 which is rounded to 167 Joules.
Evaluate the formula for B = 9 in.2 and h = 32 in.
32 in.3
9.6 in.3
96 in.3
288 in.3
Answer:
is going to give you a decimal as then you divide it by 2 and then multiply that number by 4 hope this helps
Step-by-step explanation:
Answer:
is going to give you a decimal as then you divide it by 2 and then multiply that number by 4 hope this helps
Step-by-step explanation:
I cant find my calculator, what's 37*15?!?
Step-by-step explanation:
i hope you find tou calculator but the answer is 555
40.54
☞EXPLANATION☜Percentage Calculator: 15 is what percent of 37? = 40.54.
I need help, please because i don't understand this
Answer:
C. 2x + 6
Step-by-step explanation:
After doing synthetic division (see attached), you get 2, 6, and 0, corresponding to the answer 2x + 6.
The weight of a dolphin increased by 17% when it became pregnant. What is the approximate pregnant weight of the dolphin if it was 278 lbs. before it became pregnant? Round to the nearest tenth of a pound.
Answer:
230.74
Step-by-step explanation:
help me solve 3x-8=-7x+6 ?
Which of the numbers shown in the box below is largest ?
Gina tosses a number cube 66 times. About how many times would you expect that Gina would toss a 6?
Answer:11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
its 11 because 66 divided by 6 = 11
A triangle has an area of 48 square feet. The height of the triangle is 8 ft. What is the length of the base of the triangle?
Answer:
12 square feet
Step-by-step explanation:
A=Area
b=Base
h=Height
To find the area of an triangle, you use the formula A=1/2bh
you plug in the the area and the height to get:
48=1/2xbx8
you do the maths and you get
b=12
1Answer:
12 sqft
Step-by-step explanation:
Find the surface area of the cone below.
Answer:
218.88 mm
Step-by-step explanation:
I have drawn a photo as an explanation, but if you have anymore questions, please ask! Cheers!