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Related Questions
Mr. Green drove 100 miles in 2 hours. He continues to drive at this same speed,
If he does not stop, how long will it take Mr. Green to drive 400 more miles?
A.5 hours
B.4 hours
C.8 hours
D.9 hours
Answers
Anthony read 1/3 of a book every day for twelve days. How many books did he read altogether?
Answers
Answer:
Step-by-step explanation:
3/36
The length of a rectangle is 10 cm, which is 1/3 of it's perimeter. Evaluate its perimeter
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Answer:
Perimeter = 30 cm
Step-by-step explanation:
10 cm x 3 = 30 cm
the required perimeter of the given rectangle is 30 cm.
What is the perimeter?Perimeter is the measure of the figure on its circumference.
What is a rectangle?The rectangle is 4 sided geometric shape whose opposites are equal in length and all angles are about 90°.
Here,
The length of a rectangle is 10 cm, which is 1/3 of it's perimeter.
Length = 1/3 of perimeter
10 = 1/3 perimeter
perimeter = 3 × 10
perimeter = 30 cm
Thus, the required perimeter of the given rectangle is 30 cm.
Learn more about perimeter here:
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Consider a sample with data values of 7, 19, 8, 15, and 11. Compute the variance and standard deviation.
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Answer:
standard deviation=4.472
variance=8.94437
The variance and standard deviation of the sample with data values of 7, 19, 8, 15, and 11 are 25 and 5 respectively.
What is a variance?A variable's value change could be accompanied by changes in other, related variables in a variety of ways. Variation refers to the relationship between the change in a variable's value when the values of the linked variables change.
Given:
The sample data = 7, 19, 8, 15, 11,
Calculate the Variance by the following formula,
Variance = Σ(xⁿ -m)² / t -1
Here x is the value of observation, m is the mean, and t is the total no of data.
For mean = (7+19+8+15+11) / 5
m = 12
Now substitute the values in the variation formula,
Variance = (12-7)²+(12-19)² + (12-8)² + (12-15)² +(12-11)² / 5-1
Variance = (25 + 49 + 16 + 9 + 1) /4
Variance = 25
And for deviation = [tex]\sqrt{variance}[/tex]
Deviation = [tex]\sqrt{25}[/tex]
Deviation = 5
Therefore, the variance and standard deviation of the sample with data values of 7, 19, 8, 15, and 11 are 25 and 5 respectively.
To know more about variance:
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A seller buys an item from a manufacturer for $100 and sells it to a customer for $120. Which of these terms describes this extra $20?
A.
cost
B.
price
C.
markup
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Answer:
C: Markup, for profit!
The cost is 100, without markup.
The price is how much it's on sail for (120)
Step-by-step explanation:
Select all expressions that are equal
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Answer:
A and D. C and E
Step-by-step explanation:
A and D = -6
C and E=-14
Answer:
B and E. Both equal -14 which equals 8-12-(6+4) :)
Please help. This is due soon. Ty 
Answers
Answer:
3 dollars and 9 cents.
Step-by-step explanation:
From the question given above, the following data were obtained:
Total amount = 20 dollars
Amount for gift A = 9 7/10 dollars
Amount for gift B = 6 2/5 dollars
Amount for gift C =?
The amount of money she has left for gift C can be obtained as follow:
A + B + C = 20
9 7/10 + 6 2/5 + C = 20
Change to improper fraction
97/10 + 32/5 + C = 20
(97 + 64)/10 + C = 20
161/10 + C = 20
Collect like terms
C = 20 – 161/10
C = (200 – 161)/10
C = 39/10
Change to mixed fraction
C = 3 9/10 dollars
C = 3.9
C = 3 dollars and 9 cents
Therefore, Kathy had 3 dollars and 9 cent for gift C
Elementary school A has implemented an after-school sports program and the principal would like to know if the participants of the sports program are becoming more active in general, compared to students who are not participating in the program. So the principal collected data on overall physical activities throughout the week from a group of the sports program participants and a group of school A students not in the program. The most appropriate statistical test for data analysis would be:_______.
A. Paired-samples t test
B. Independent-samples t test
C. Pearson's correlation
D. One-sample t test
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Answer:
B. Independent-samples t test
Step-by-step explanation:
The test here is to find out if the participants of the sports program are becoming more active in general when compared to students who are not participating in the program.
Now, this will involve taking sample from the two independent groups to determine if there is statistical evidence that one is more active than the other.
Thus, the best test to use in this case will be the Independent-samples t test
Each side of a square is increasing at a rate of 5 cm/s. At what rate (in cm2/s) is the area of the square increasing when the area of the square is 49 cm2
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Answer:
25 cm^2/sec
Step-by-step explanation:
I my understanding of the question. It doesn't matter what the area of the square is currently is, for example if the area is 25 cm^2, 36 cm^2 or 49cm^2, the rate will ALWAYS increase by rate squared.
rate(a) x rate(b) = rate(area) in this case rate(a) = rate(b)
(5 cm^2/s) (5 cm^2/s) = 25 cm^2/s
PLEASE HELP!!!!!!!!!!!!
Answers
Answer:
57
Step-by-step explanation:
Hello There!
complementary angles add up to equal 90
So to find the measure of angle 2 we subtract the given angle (33) from 90
90-33=57 so the measure of angle 2 = 57
Answer: 57°
Complementary Angles add up to 90°
Since we already have 33°, we need to find the other half.
90 - 33 = 57
It'll be 57°
3t−18=4(−3−
4
3
t)
Answers
Answer: 0.034
Step-by-step explanation:3t-18=4(-3-43t)
3t-18=-12-172t
3t+172t=-12+18
175t/175=6/175
t=0.034
What rule describes the translation?
Write tule as an ordered pair
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For B (x+6), (y-2)
For C (x+2), (y+2)
Good luck
Which is an equivalent expression for 6(2y+4)+5y?
please help
Answers
Answer:
17y+24
Step-by-step explanation:
simplify so the first step would be to multiply whats in the parentheses by the number outside in this case its 6 youd get:
12y+24+5y
then you simplify farther by adding like terms
17y+24
Identify the response variable and whether the setting involves a single sample, a matched pairs, or two independent samples.
a. A chemist obtains a reference specimen of known concentration from the National Institute of Standards and Technology. She then makes 20 measurements of the concentration of this specimen with the new method and checks for bias by comparing the mean result with the known concentration.
b. Choose 40 romantically attached couples in their midtwenties. Interview the man and woman separately about a romantic attachment they had at age 15 or 16. Compare the attitudes of men and women.
c. Another chemist is checking the same new method. He has no reference specimen, but a familiar analytic method is available. He wants to know if the new and old methods agree. He takes a specimen of unknown concentration and measures the concentration 10 times with the new method and 10 times with the old method.
Answers
Answer:
1. single sample design
2. matched pairs
3. two independent samples.
Step-by-step explanation:
the response variable is known as the dependent variable, it is the variable that the researcher is interested i finding. the response variable is the x variable that responds to changes in the independent variable.
1.
In this question the researcher has only one sample that is the specimen. that is the reference specimen that she obtained. Therefore it is a single sample design.
the response variable here is the measurement of concentration.
2. In this question we have two pairs, men and women. The researcher is interested in comparing attitudes as she interviews them. so response variable is attitude or behavior
3. this is a 2 independent sample design. The researcher is using two different methods to test and their average is being compared.
A farmer sells 9.8 kilograms of pears and apples at the farmer's market. 3/4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
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Answer:
2.45 kg of apples
Step-by-step explanation:
The farmer starts with 9.8 kg of fruit, and 3/4 of that is pears meaning the remaining 1/4 is apples. 9.8kg * 1/4 = 2.45 kg of apples
26) True/False (1 point): Vertical angles, corresponding angles, and supplementary angles are all congruent angle pairs.
Answers
Answer:
I say the answer will be true
Answer:
true
Step-by-step explanation:
Given the two expressions shown below:
A. square root of 4 plus square root of 25
B. square root of 4 plus square root of 2
Which statement best describes the two expressions? (5 points)
a. Both are rational.
b. Both are irrational.
c. A is rational, but B is irrational.
d. A is irrational, but B is rational.
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Simplify ..............
Answers
Answer:
The third response
Step-by-step explanation:
Members of a baseball team raised $1479.25 to go to a tournament. They rented a bus
for $800.50 and budgeted $45.25 per player for meals. Write and solve an equation
which can be used to determine p, the number of players the team can bring to the
tournament.
PLEASE HELP FAST ITS FOR A TEST
Answers
Answer:
The equation is: [tex]800.5 + 45.25p \leq 1479.25[/tex]
The team can bring at most 15 players to the tournament.
Step-by-step explanation:
They rented a bus for $800.50 and budgeted $45.25 per player for meals.
This means that the cost for bringing p players is given by:
[tex]C(p) = 800.5 + 45.25p[/tex]
Members of a baseball team raised $1479.25 to go to a tournament.
This means that:
[tex]C(p) \leq 1479.25[/tex]
So
[tex]800.5 + 45.25p \leq 1479.25[/tex]
[tex]45.25p \leq 1479.25 - 800.5[/tex]
[tex]p \leq \frac{1479.25 - 800.5}{45.25}[/tex]
[tex]p \leq 15[/tex]
The team can bring at most 15 players to the tournament.
There are 64 pretzels in a 16-ounce bag of chocolate-covered pretzels.
How many chocolate covered pretzels are there per ounce?
Answers
Answer:
64 pretzels in a 16 oz bag
1 oz will contain 64/16 pretzels = 4
5 oz will therefore contain 4 x 5 = 20 pretzels
Step-by-step explanation:
See here for a deeper explanation! ^^
Hopefully it helps :)
https://brainly.com/question/200543
Look first at problem then answer 2-6
NO SPAM and EMERGENCY PROBLEM
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3) 113.1 = Area
4) You would need to adjust how many number places of pi you use for how huge the number you need to calculate for.
5) To write an exact number for an irrational expression you need to calculate then round to the nearest hundredths after you get the number for either radius, diameter, or area. To find the approximate value you only use the minimum numbers such as 3.14 instead of 3.14159...
6) How this helped me better estimate the value of an irrational expression is by using more numbers for every extra number place the circle has in the diameter.
A pipeline is placed diagonally across a rectangular field that is 25yd wide and 30yd long. How long is the pipeline, to the nearest yard?
Answers
Answer:
the pipe is 39.1 yards long.
Step-by-step explanation:
you would use pythagorean theorem (a²+b²=c²). plug the 25 in to the a² and plug the 30 in to the b² and figure out c² (it would look something like this 25²+30²=c²). to do that you need to square the 25² and the 30². the 25² would turn out to be 625 and the 30² would be 900 you would add them and get 1525. then you would squareroot 1525(
[tex] \sqrt{1525} [/tex]
) and get 39.05 and round it up and get 39.1 yards. dont forget to put the mesurements down
Can y’all help me on question 29?!
Answers
Answer:
Step-by-step explanation:
A dilation produces a smaller figure. Which is a possible scale factor?
Answers
Answer:
:the picture dosent load bro
Step-by-step explanation:
I can't see pictures, but any number under 1 shrinks and image.
Edit: I saw your comment. It's B, because it is the only one below 1
---
sorry if this doesn't help
What is the radius of a circle whose equation is (x – 7)2 + (-10)2 = 4?
2 units
4 units
8 units
16 units
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Answer:
Its A) 2 units
Step-by-step explanation:
________________________________
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Answer:
The Red block is the answer
Step-by-step explanation:
Can anyone help, I got really confused doing this problem, and I can’t find the answer for it.
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Answer: The area is 45 square feet
Step-by-step explanation: Use the formula (base*height)/2. Base in this case is 15, while height is 6. (15*6)/(2) It should equal 45 square feet.
Answer:
45^ft
Step-by-step explanation:
1/2 B ×H
1/2(6)×15=45^ft
Very much need some help ASAP !!
Answers
Answer:
D
Step-by-step explanation:
It cannot be Option A because the values are halve and there is nothing to distribute to them to make the values equal.
It's not option C because if you distribute 2y to each term in the parenthesis
you get -4[tex]y^{5}[/tex] + 6y³ + 4y². But where is the 8y² and -2y?
While Option B is equivalent, you can factor it out more and find the common factor of -2 to distribute among them as shown in option D
It is option D because distributing the -2y to each term solves to
-4[tex]y^{5}[/tex] + 6y³ + 8y² -2y.
Find the missing angle according to the Triangle Exterior Angle Theorem
Answers
Answer:
x=128°
Step-by-step explanation:
90+38=128
What is the slope-intercept form of the equation below written in standard from:
x + y =9
A. y = x + 9
B. y = -x+ 9
C. y + x = 9
D. y = 9 + x
Answers
Answer:
B
Step-by-step explanation:
y+x=9
y=slope
y=9-x