Mathematics College
Answers
Answer 1
Answer: cos(13pi/36)
Step-by-step explanation: just did the assignment
Related Questions
In a certain Algebra 2 class of 27 students, 11 of them play basketball and 13 of them play baseball. There are 5 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?
Answers
Step-by-step explanation:
The probability for baseball is unfortunately unlikely
Add the fractions 3/14+15/21. Simplify your answer
Answers
When simplified, it should be 13/14
The solution of fractions 3/14 + 15/21 is,
⇒ 3/14 + 15/21 = 39/42
We have to given that,
To add the fractions 3/14 and 15/21.
Now, We can add the fractions as,
⇒ 3/14 + 15/21
Since, LCM of 1 and 21 are 42.
Hence, Make the denominator same,
⇒ 9/42 + 30/42
⇒ (9 + 30) / 42
⇒ 39/42
Therefore, The solution of fractions 3/14 + 15/21 is,
3/14 + 15/21 = 39/42
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In a random survey of 50 seventh grade students at O'Donnell Middle School, 32 said chocolate was their favorite flavor of ice cream. The school has 750 students in seventh grade. How many of them are likely to select chocolate as their favorite flavor?
Answers
Answer:
480 people are likely to select chocolate as their favorite flavor.
Step-by-step explanation:
32 out of 50 = 32/50 = 16/25
750 * 16/25 = 480
Below are two parallel lines with a third line intersecting them
Answers
Answer:
its 122
Step-by-step explanation:
just did it on khan academy
What is the solution to the system of equations?
y = 1/3x-10
2x + y = 4
Answers
Answer: x = 6, y = -8
Answer:
y=-8, x=6
Step-by-step explanation:
Hope this helped!!!
Find the missing side lengths. Leave your answers as radicals in simplest form.
Answers
9514 1404 393
Answer:
x = 18y = 9
Step-by-step explanation:
The ratios of side lengths in a 30°-60°-90° triangle are ...
1 : √3 : 2
In the same order, the given side lengths are ...
y : 9√3 : x
Comparing these two sets of ratios, we see that we can make the first equal to the second by multiplying by 9:
9(1) : 9√3 : 9(2) = y : 9√3 : x
Then y = 9·1 = 9, and x = 9·2 = 18.
The missing side lengths are x = 18, y = 9.
myq-eimh-otm
a.l.l
a.l.o.u.l.d
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Yesssssssssssssssssssssssssss
Please? I really need this answer if you can
Answers
From two to three there are 8 gaps and it is up to 7 so
Third answer 2 7/8
A deli that just opened was giving out free mini sandwiches. A sample of 50 likely customers was surveyed about which sandwich they preferred. The people surveyed included 12 people who said they preferred the roast beef sandwich. Based on this information, how many of the first 150 sandwich orders should the deli predict will be for roast beef?
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Answer:
128
Step-by-step explanation:
4 * (3.4+2)-(56 divided by 7)= 13.6, please give an explanation to this problem!!
Answers
Answer:
[tex]=13.6[/tex]
Step-by-step explanation:
[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]
[tex]=4\left(3.4+2\right)-\frac{56}{7}[/tex]
[tex]=21.6-8[/tex]
[tex]\mathrm{Subtract\:the\:numbers:}\:21.6-8=13.6[/tex]
[tex]=13.6[/tex]
The researchers chilled the beverages to 6°C. Participants drank the beverages at the same time each day for three days. During the 3 days of the experiment, the researchers feed each participant the same diet. On the third day participants spent 24 hours in a calorimeter chamber to measure their energy metabolism. The medical journal Obesity published the results in 2007. What is the purpose of double-blinding?
a. To control unintentional researcher bias in the execution of the experiment
b. To control for the participants' prior beliefs about energy drinks
c. To control both unintentional research bias and participant prior beliefs
Answers
Answer:
C. To control both unintentional research bias and participant prior beliefs
Step-by-step explanation:
Double blinding is a type of study where neither the participants nor the researchers know the treatment or intervention that the participants receive until the whole study/research is completed. This is very important because it means that the results gotten from the study have a very slim chance of being biased.
Thus,the correct answer is option C as it includes both the researcher and the participants
(ASAP I HAVE 20 MINS LEFT) The surface area of the rectangular prism is _____in2 and the volume is ____in3
Answers
Answer:
1)1920 in2 (2)120 in3
Step-by-step explanation:
A school needs 2,400 notebooks for next year if the notebooks come in packages of 60, how many packages should the school buy?
Answers
Answer:
40
Step-by-step explanation:
Divide 2400 by 60 to get 40
Hope this helps!
Answer:
40
-step explanation:
What is the measure of m?
12
4
n
m
m
[?]
Enter
will give brainliest
Answers
Answer:
8 I think
Step-by-step explanation:
if I'm wrong don't get offended
Plz help I’m down bad atm
Answers
Answer: Second option, 2^2x+6=2^6
Step-by-step explanation:
You can simplify 4^x+3 by making the 4 into 2^2. By doing this you also multiply the current powers of 4 by 2, giving you (x+3) • 2, furthermore, 2^2x+6.
64 is a power of 2, so just multiply 2 by itself until you get the number you’re looking for and count how many times you do it. Or just type each option, like 2^4, 2^6 into the calculator until you find it.
Which of the following is not a term in the expression
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C 9 because the only term with a 9 in it is 9f4g
What would been the volume?
Answers
Answer:
Multiply 43x15x5
Step-by-step explanation:
length x whight x hight
Find the perimeter pt3
Answers
Answer:
28
Step-by-step explanation:
2x3x2x2=28 the permiter is the area around the shape like lenght witdth and heght
The perimeter is the sum of all sides: K + L + M + N.
Solve and check. All steps must be shown.
5x + 15 = 75 - 25x
Answers
Answer:
X = 3
Step-by-step explanation:
Answer:
=2
Step-by-step explanation:5x+15=75-25x
We move all terms to the left:
5x+15-(75-25x)=0
We add all the numbers together, and all the variables
5x-(-25x+75)+15=0
We get rid of parentheses
5x+25x-75+15=0
We add all the numbers together, and all the variables
30x-60=0
We move all terms containing x to the left, all other terms to the right
30x=60
x=60/30
x=2
Liz has 4 times as many points as Joey in a video game. Together they have fewer than 150 points. Which inequality can be used to determine the least number of points that Joey can have?
A. 4x+4<150
B. 4x+4≤ 100
C. 4x+x<150
D.4x+x≥150
I will select u as brilliant :)
Answers
Answer:
C. 4x + x < 150
Step-by-step explanation:
x = Joey's points
4x = Liz's Points
together they have fewer than 150 points means the inequality is < 150
So the answer is: 4x + x < 150
Answer:
This may help you I think so
Which best describes an angle?
A. Two distinct rays that originate from a common point
B. Two parallel lines on a plane
C. The set of all points equidistant from a particular point
D. A line with a starting point that extends to infinity
Will give to the brainliest!!
Answers
B hhshshdhehehhehehdhdbdbdbbdbdbddu
What is 2x10-50=x and I’m just typing this to get to 20 words or whatever
Answers
Step-by-step explanation:
sorry I don't know the answer I want some points so because I do this I really really sorry. and thanks for point
what si the answer to this??
Answers
Answer:
One solution
Step-by-step explanation:
The slopes are different which means, the systems has one solution.
hope this helps and is right p.s. i really need brainliest :)
Classify each as a minor arc, major arc, or semicircle!!!!!!!!!!!!
AE:
AEB:
FDE:
FED:
FA:
BDF:
Answers
Answer:
Minor Arc: AE, FA
Semicircle: AEB, FDE
Major Arc: FED, BDF
Step-by-step explanation:
Required
Classify base on the type or arc
Keynote
Minor arcs are less than 180 degrees
Semicircle are equal to 180 degrees
Major arcs are less than 180 degrees
Using the above keynote, we have the following observation
AE: Minor
AEB: Semicircle
FDE: Semicircle
FED: Major
FA: Minor
BDF: Major
Please help me with this ASAP
Answers
Answer:
34
Step-by-step explanation:
Every triangle = 180 so you add the angles you have 146. You take 180 and you subtract 146 and you get the answer.
1. At the post office, Tiffany paid $11.04 for 24 stamps. At this rate, how much Would it cost Tiffany to buy 18 stamps?
A. $0.46 B. $2.76 C. $8.28 D.$17.64
2. A group of friends hiked 7 miles in 2 hours. At this same rate, what is the total number of miles they can hike in 8 hours?
a. 40 Miles
b. 28 miles
C. 11 miles
D. 9 miles
Giving brainly to Who every answer this question Please explain
Answers
1. I think is C
2. a
Answer:
For question one: $8.28
For question two: 28 miles
Step-by-step explanation:
For question one: You divide 11.04 by 24 to get .46 the multiply that .46 by 18 to get 8.28
For question two: The ratio between the two is 7/2 and x/8. So to find x, you divide 8 by 2, getting 4. Then multiply that 4 by 7 to get 28.
Which point best approximates 45? A B В C D 0 1 2 3 4. 5 6 7. 8 9 Ο Α OB С OD
Answers
Answer:
b or c???
Step-by-step explanation:
The point that best approximates √45 is C.
What is an expression?
An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
√45
This can be written as,
= 6.7082
Now,
6.7082 is near 7 so,
The point that best approximates √45 is C.
Thus,
The point that best approximates √45 is C.
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Julio is a junior ranger at the Rocky Mountain National Forest. It is his job to inform a group of middle school student visitors about ways to prevent forest fires. Which statements would Julio most likely review with the group? Check all that apply. build campfires away from trees dispose of leftover food in campfires light campfires when it is dry and hot start campfires with an adult present ensure campfires are permitted before lighting them
Answers
Answer:
A, D, E
Step-by-step explanation:
Sorry for being late
To prevent forest fire, Julio should take the measures stated in, A, D, and E.
What is Forest Fire?
Forest fire can be defined as an uncontrolled or unplanned destructive fire that spreads over a forest or woodland.
To prevent forest fire from occuring during the visit of the students, the following measures, among others, should be taken:
Campfires should not be built close to trees.Adult should be present when campfires are started.Campfires should only be started if permitted.
Thus, to prevent forest fire, Julio should take the measures stated in, A, D, and E.
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Is 14x^7 a polynomial
Answers
yes it is a polynomial
Answer:
yes
Step-by-step explanation:
Yes. 14x^7 is a 1-term polynomial, also called a monomial.
NO WEBSITES ALLOWED (especially bitly)
Answers
Answer:
top right is an acute angle the top left is an obtuse angle and the bottom right is a right angle and I'm not to sure what the bottom right is
Answer:
Bottom right is a right
Step-by-step explanation:
and since it has no matching sides it would be a Isosceles
