Answers
Answer:
66
Step-by-step explanation:
the answer is 66 in
I do love math ask more questions
Related Questions
I will give extra points please help
Answers
Answer:
14.2
Step-by-step explanation:
Can you please help me
Answers
9514 1404 393
Answer:
volume: 200 cm³surface area: 220 cm²Step-by-step explanation:
The usual formulas are useful for this.
V = LWH
V = (10 cm)(4 cm)(5 cm) = 200 cm³
The volume is 200 cubic centimeters.
__
SA = 2(LW +H(L +W))
SA = 2((10 cm)(4 cm) +(5 cm)(10 cm +4 cm)) = 2(40 +5(14)) cm² = 220 cm²
The surface area is 220 square centimeters.
Estimate the diameter of a circle with a circumference of 80 ft. Use 3.14 for pi
Answers
Round your answer to the nearest hundredth if necessary. Estimate the diameter of a circle with a circumference of 80 feet.
Don't Answer If You Don't Know Yo! Lenny has a check for $450.00. He wants to deposit half of the money into his checking account, and take the rest out. On his deposit slip, how much money is Lenny putting into his
checking account?
$350.00
O $0.00
$450.00
$225.00
Answers
Answer:
he is putting 225 in his account
Step-by-step explanation:
450 ÷ 2 = 225
divide by 2 because it say half
Answer:
$225.00
Step-by-step explanation:
To solve, split the total amount in two.
450.00/2
what is 9/68x17/6 in simplest form
Answers
Answer:
3/8
Step-by-step explanation:
Multiply, then divide.
what is the volume of this composite solid
Answers
Answer:
C
Step-by-step explanation:
198 cubic meters
9 +10 =
please help
I will give brainliest and 5 star and 10 points for the best answer
Answers
Answer:
910
Step-by-step explanation:
just remove the plus sign (+) to get your answer :)
what is the value of 3n to the power of 2 - 4m divided by 6 when m= 4 and n=18? (16 POINTS)
Answers
Answer:
this video might be able to help you. It reviews how to determine the sum of n squares and exponential equation solving using exponential properties.
Answer:
5,829.4
Step-by-step explanation:
3n*2times2-4m/6
54*2times2-16/6
2,916times2-16/6
5,832-16/6
5,832-2.6
Answer: 5,829.4
Sorry if I’m wrong
If each person uses 70 gallons of water per day, how many gallons will 57 people use in a day?
Answers
3990
Step-by-step explanation:
57*70=3990
A phone company plans on offering their new smartphone in four colours: white, black, silver and rose gold. They anticipate that 30% of shoppers will prefer white, 35% will prefer black, 20% will prefer silver and 15% will prefer rose gold. They perform market research by asking a random sample of 350 potential customers which colour they prefer.
Color White Black Silve Rose Gold
Frequency 99 135 89 27
Can the company conclude that their expected distribution was accurate using a 10% level of significance?
a. Calculate the test statistic.
b. Determine the critical value(s) for the hypothesis test.
c. Conclude whether to reject the null hypothesis or not based on the test
Answers
a)
The test statistics is χ² = 8.31
b)
The critical value is 6.251.
c)
We reject the null hypothesis that the expected distribution is accurate.
What is hypothesis testing?Hypothesis testing is a statistical method that is used to make decisions about a population based on a sample of data.
It involves testing a null hypothesis (H0) against an alternative hypothesis (Ha) using statistical techniques.
We have,
a.
To test whether the expected distribution was accurate, we need to perform a chi-square goodness-of-fit test.
The null hypothesis is that the expected distribution is accurate, and the alternative hypothesis is that it is not accurate.
The expected frequencies are:
Color:
White Black Silver Rose Gold
105 122.5 70 52.5
i.e
Expected Freq:
0.3 x 350 = 105
0.35 x 350 = 122.5
0.2 x 350 = 70
0.15 x 350 = 52.5
Using the formula for the chi-square goodness-of-fit test statistic:
χ² = ∑ (Observed Frequency - Expected Frequency)² / Expected Frequency
χ² = [(99-105)²/105] + [(135-122.5)²/122.5] + [(89-70)²/70] + [(27-52.5)²/52.5]
χ² = 8.31
b.
The critical value for the chi-square test with 3 degrees of freedom (4 categories - 1) and a significance level of 0.10 is 6.251.
c.
Since the calculated test statistic (8.31) is greater than the critical value (6.251), we reject the null hypothesis that the expected distribution is accurate.
Therefore, the company cannot conclude that their expected distribution was accurate using a 10% level of significance.
Thus,
a)
The test statistics is χ² = 8.31
b)
The critical value is 6.251.
c)
We reject the null hypothesis that the expected distribution is accurate.
Learn more about hypothesis testing here:
https://brainly.com/question/30588452
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What is the exponential expression for the numerical expression 14⋅14⋅14⋅14?
Answers
what is the answer to 5 + 5
Answers
Answer:
10
Step-by-step explanation:
Let h(x)=|2x|-4. Find h(x) when x = -7.
a)-10
b) 10
c) -13
d) 13
Plzzz
Answers
In an agricultural experiment, the effects of two fertilizers on the production of oranges were measured. Eighteen randomly selected plots of land were treated with fertilizer A. The average yield, in pounds, was 457 with a standard deviation of 38. Twelve randomly selected plots were treated with fertilizer B. The average yield was 394 pounds with a standard deviation of 23. Find a 99% confidence interval for the difference between the mean yields for the two fertilizers. (Round down the degrees of freedom to the nearest integer and round the final answers to two decimal places.)
Answers
The 99[tex]\%[/tex] confidence interval for the difference between the mean yields for the two fertilizers is (32.11, 93.89).
A confidence interval is a range of values that provides an estimate of the unknown population parameter with a certain level of confidence.
Given that
Sample 1:
Sample mean, [tex]\bar{X_1}[/tex] = 457,
Sample size, [tex]n_1[/tex] = 18,
Standard deviation, [tex]s_1[/tex] = 38.
Sample 2:
Sample mean, [tex]\bar{X_2}[/tex] = 394,
Sample size, [tex]n_2[/tex] = 18,
Standard deviation, [tex]s_2[/tex] = 23.
Point estimate = [tex]\bar{X_1}[/tex] - [tex]\bar{X_2}[/tex]
= 457 - 394
= 63.
[tex]Standard Error=\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2} }\\[/tex]
[tex]=\sqrt{\frac{38^2}{18}+\frac{23^2}{18} }\\=11.14924[/tex].
Level of significance, α = 0.01 (given that 99[tex]\%[/tex] confidence interval).
Degrees of freedom = [tex]\dfrac{(\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2})^2 }{\frac{(\frac{s_1^2}{n_1})^2}{n_1-1} + \frac{(\frac{s_2^2}{n_2})^2}{n_2-1} }[/tex] = 28.
Critical values:
[tex]t_\frac{\alpha}{2} = \pm2.771[/tex]
The confidence interval is
[tex](\bar{X_1}-\bar{X_2})\pm t_\frac{\alpha}{2}\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2} }[/tex]
[tex]= 63 \pm 2.771 \times 11.14924\\=63 \pm 30.89\\=(63-30.89,63+30.89)\\=(32.11,93.89)[/tex]
Hence, the confidence interval is (32.11, 93.89).
Learn more about Confidence Interval here:
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whats the slope of the line shown???
Answers
Answer:
1 over 2 or 1 half, you can use rise(y value) over run(x value)
Which equation represents 7/3 ? Select all that apply.
Answers
Ms. Gittens went out to dinner and the total bill was $60. She wants to give the waiter a %20 tip. How much money should Ms. Gittens give the waiter for a tip?
Answers
Answer:
$12
Step-by-step explanation:
20% of 60 = 12
Answer:
12 .....20% of 60 is = 12
Step-by-step explanation:
Fill the empty slots by dragging tiles from the left to show the next step for solving the equation. Use the equation machine to help you solve the addition equation.
K = 8
K = 9
K = 17
K = 26
Answers
Answer:
k=8
Step-by-step explanation:
9+8 = 17
Answer:
Please pick Answer A
Step-by-step explanation:
MARKIPLIER AND LIXIAN
please someone help me, ill give brainiest pls just help me its my last question on math:
Which comparison is correct?
1 2 3 or 4
1. 7 < 3
2. -2 > -7
3. -9 > 4
4. -6 > -5
Answers
Answer:
2. -2> -7 ...............
what is -2.14285714 rounded to the nearest whole
Answers
Answer:
-2
Step-by-step explanation:
What is the equation of the line in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answers
Answer:
y = -3/2x - 2
y int is -2
x int is -3/2
How many faces doe sthe following shape have?
Answers
Hope it helped.
I need help ASAP it’s 25 points
Answers
Answer:
the same number of games
Step-by-step explanation:
Answer:
Mathematics is really hard too bad I don't know the answer is it 100
Easy easy point answer the question
Answers
Answer: You must rearange 3 3/4 into an improper fraction to make the subtraction easier.
Step-by-step explanation:
(this is a little long bear with me :3)
3 and 3/4ths into a improper fraction would be: 15/4
looking at 15/4 and 7/8 notice how the denominators are 4, and 8. both are common denominators. so we multiply 4x2 to make 4, into 8. and whatever we do to the bottom, we do to the top.
15x2 30
---------- = ------
4x2 8
our new fraction is 30/8.
do the subtraction..
30 7 23
---- - --- = --- that then turns into a mixed number, which is:
8 8 8
2 7/8.
hope this helped! :)
Answer:
Step-by-step explanation:
because you need to make it same base
Item 2
Question 1
Tell whether the angles are adjacent or vertical. Then find the value of x.
Answers
Answer:
vertical, and x is 81
Step-by-step explanation:
The angles are across first each other, which means they are the same angle. From there, set x+3 equal to 84 (x+4=84). From there solve to get x
ryan climbed 100 steps in 50 seconds. How many steps did he climbed per second? Step by step. Show the full procedure.
Answers
What is the value of y when x equals 10 (y=2x+1)
Answers
Answer:
y= 21
Step-by-step explanation:
2*10+1= y
20+1= 21
y = 21
On a coordinate plane, triangles A B C and D E F are shown. Triangle A B C has points (negative 10, negative 10), (negative 10, negative 4), and (4, negative 10). Triangle D E F has points (0, 8), (12, 4), and (5, 0). Which statement is true of the right triangles ABC and DEF? Area of ABC is greater than area of DEF. Area of ABC is less than area of DEF. Area of ABC is equal to the area of DEF. There is not enough information to compare the areas of triangles ABC and DEF.
Answers
Answer:
Area of ABC is greater than area of DEF
Step-by-step explanation:
Answer:
A. Area of ABC is greater than area of DEF.
A car travels 56 miles in 3.5 hours.
a. What is the unit rate?
b. How long will it take the car to travel 120 miles?
c. How far will the car travel in 6 hours?
Answers
B = 7.5 hours
C = 96 miles
Step by step explanation:
A: If the car travels 56 miles in 3.5 hours you divide the 56 miles by the 3.5 hours and then you will get your unit rate of 16 miles per hour.
B: Now that you know that your unit rate is 16 miles per hour you can figure out how long it will take the car to travel 120 miles. To find this answer all you have to do is divided the amount the car traveled, 120 miles, by the unit rate, 16 miles per hour. After doing the division you will get your answer of 7.5 hours/ 7 hrs and 30 mins.
C: This one is pretty simple. All you have to do is take your unit rate of 16 and multiply it by the 6 hours. After doing your multiplication you will get your answer of 96 miles.
I hope you understand and this answered all of your questions. :)
URGENT
Solve each triangle. Show work.
Answers
Answer:
Multiply the 27 yd × 30 yd then after the other one do the same thing but after All divide it by 17