Answer:
15
Step-by-step explanation:
you divide 30 by 2
Half of 30 is 15.
To calculate half of 30, we divide 30 by 2 since "half" means dividing something into two equal parts.
Dividing 30 by 2, we get:
30 ÷ 2 = 15.
Hence, half of 30 is equal to 15.
To know more about Half, refer here:
https://brainly.com/question/16126834
#SPJ6
Researchers want to investigate if students retain more information if it printed on blue paper rather than white paper. They recruit 100 elementary students, 100 middle school students, and 100 high school students to participate. The researchers then randomly assigned half of the elementary students, half of the middle school students, and half of the high school students to receive the information on blue paper. The remaining students receive the same information on white paper.
Required:
Write down the best describes this experimental design.
Answer:
Stratified design with color of paper as the blocks
Step-by-step explanation:
The experimental design that this question uses is the stratified design with color of paper as the blocks
A stratified design is one where the population has been divided into strata that are homogeneous. A good number of participants would then be picked for each of the stratum. The homogeneous strata are also known as the blocks and here in this question we have color of paper as the block here.
The students are of different school levels, elementary, high school and middle school. Each of these levels have 100 students. The students in each levels are halved and each half is randomly assigned information on either a white paper or a blue paper.
Stratified design with color of paper as the blocks.
The experimental design that this question uses is the stratified design with color of paper as the blocks
Stratified sampling refers to a type of sampling method . With stratified sampling, the researcher divides the population into separate groups, called strata. Then, a probability sample (often a simple random sample ) is drawn from each group. Stratified sampling has several advantages over simple random sampling.The homogeneous strata are also known as the blocks and here in this question we have color of paper as the block here. The students are of different school levels, elementary, high school and middle school. Each of these levels have 100 students. The students in each levels are halved and each half is randomly assigned information on either a white paper or a blue paper.Learn more:
brainly.com/question/23028893
Find the measure of angle b.*
Answer:
Step-by-step explanation:
b = 44
When parallel lines is cut by a transversal, alternate exterior angles are congruent
Please help i will give brainliest
Answer:
y = -3
Step-by-step explanation:
Pls solve it and show your work :((
Answer:
See below
Step-by-step explanation:
To graph the line we need two points, one point is the y-intercept, the second point to be calculated.
Q7
y = -3x + 6
The y-intercept is (0, 6)Let the domain be x = 5 for the second point, then:
y = -3*5 + 6 = -15 + 6 = -9The point is (5, -9)Connect these points to get the graph
Q8
y = 4/5x - 3
The y-intercept is (0, -3)Let the domain be x = 5 for the second point, then:
y = 4/5*5 - 3 = 4 - 3 = 1The point is (5, 1)Connect these two points to get the graph
You want to put a fence around your large yard. There are two companies that you have found to do the work. They have each given you a quote for how much the work will cost. Of course, you want to find out which company will be the cheapest. The boundary of your yard is determined by five trees. The lines connecting them form the edge of your property. Shown below are the descriptions for the positions of the trees relative to your house.
TREE Position (relative to your house)
1 100 ft. east 2 40 ft east, 80 ft south 3 40 ft west, 120 ft south 4 90 ft west, 60 ft north 5 20 ft east, 110 ft north
STEP 1: On graph paper, mark the position of each of the trees on your land. Let each block of the graph paper represent a 10-foot by 10-foot square. Using a straightedge, connect Tree 1 to Tree 2, Tree 2 to Tree 3, Tree 3 to Tree 4, and so on.
STEP 2: Use the Pythagorean Theorem to find the length of each side of your property. Round
each answer to the nearest hundredth, if necessary.
STEP 3: Determine the perimeter of your property by adding up all of the sides.
STEP 4: Company 1 says that they will complete the job for $12 per foot of fencing. Company 2
says that they will charge you $250 for the first 100 feet of fencing and $15 for each additional foot. Determine the cost of fencing for both companies.
can you please tell me how did you break line of segment using Pythagoras theorem? ASAP please Its due in 5 hours from now.
thanks
Answer:
200
Step-by-step explanation:
balancing it with 120 is 76 so this what you get
Your mother gave you $13.35 to buy a present. This covered 3/5 of the cost. Write and solve an algebraic equation to find the cost of the present.
The present cost
$22.20
Explanation:
Represent the cost of the present by the variable
c
We are told
XXX
3
5
×
c
=
$
13.32
(this is the requested equation)
Multiplying both sides by
5
3
(to get rid of the fraction on the right side)
XXX
5
3
×
3
5
×
c
=
$
13.32
$
4.44
×
5
3
XXX
→
c
=
$
22.20
7h + (-6.3d) -15 + 4d-2.6h
Answer:
−
2.3
d
+
4.4
h
−
15
Step-by-step explanation:
bu
A+++
2.3.4.5.6.7
X
1997
How many roots of f(x) are rational numbers?
ΟΟ
2
Answer:
2
Step-by-step explanation:
Answer:
2 hopefully this helps you
Can someone please help me. I will give you brainliest, I’m struggling bad...
Step-by-step explanation:
as the other guy say it a for real
is this function linear or nonlinear
Answer:
liner
Step-by-step explanation:
Answer:
they all are linear
Step-by-step explanation:
because they 1 is a member of 1, 4 is a member of 2, 9 is a member of 3, and 16 is a member of 4. hopefullt it makes sense
have a nice day
brainlist???
The sum of two numbers is 28. One number is 4 less than the other. What are the two numbers?
Answer:
12 and 16
Step-by-step explanation:
set up an equation:
since one number is 4 less than the other, let x represent it. for the other number, let x+4 represent it since it's 4 greater than x. set the equation equal to 28 because the sum of the two numbers is 28.
x+x+4=28
now, we solve the equation:
x+x+4=28
2x+4=28
2x=24
x=12.
Since x equals 12, to find the other number, which would be 4 greater than x, we would add:
12+4=16
So, the two numbers are 12 and 16.
what theorem can be used to probe the 2 triangles similar?
Answer:
B. SAS
Step-by-step explanation:
Two sides of ∆DEF (DE and DF) are proportional to two corresponding sides of ∆ABC (AB and AC), and also their included angles (<D and <A) are equal to each other.
Therefore, based on the SAS criterion, both triangles are proven to be similar to each other.
Both triangles satisfy the SAD Criterion, and hence, they can be proven to be similar to each other.
A car costs £14000. Work out the price after an 8% discount.
Answer:
8%of 14000=1120
14000-1120=12880 is the final price
Answer:
12,800
Step-by-step explanation:
14000 × 8 ÷ 100 = 1,120
14000 - 1,120 = 12,800
WILL GIVE BRAINLIEST !!!
Use the Distributive Property to simplify the expression.
12(6−k) =
Answer:
72-12k plz mark brainlest
Step-by-step explanation:
Answer:
[tex]\huge\boxed{\boxed{72-12k}}[/tex]
Step-by-step explanation:
Hello.
Please remember that the Distributive property states that
a(b+c)=ab+ac
Now, simplify:
12(6-k)
distribute 12 by multiplying it times 6 and -k:
72-12k
And we're done!
I hope it helps & have an outstanding day!
~ST2710 :)
Students at the Washington School are selling
gift wrap to raise money. The gift wrap sells for
$5.50 per roll, and 40% of that price goes to the
school. If the students sell 650 rolls of gift wrap,
how much money will the school receive?
Answer:
$1430
Step-by-step explanation:
40% of 5.50 = 0.4 × 5.50 = 2.2
$2.20 per roll, 2.20 × 650 = 1430
Which of the following is the equation of the inequality shown graphed below
Answer:
2- -> y<_ X+ 3
DJDKFKFKFDJDMF
I need to reach the character limit
Samantha constructs a scatter plot. She realizes that she needs to add one more point, which will be an outlier.
Which of the ordered pairs does she still need to plot?
(19,9)
(8,6)
(10,14)
(4,15)
Coordinate plane with horizontal axis labeled Variable X and vertical axis labeled Variable Y. The following ordered pairs, which are approximated, are plotted 2.5 comma 15, 5 comma 15, 6 comma 12, 7 comma 14, 10 comma 12, 11 comma 12, 12.5 comma 11, 13 comma 11, 16.5 comma 9, and 19 comma 7.
The coordinates are (19, 9), (10,14) and (4,15)
Scatter plotsGiven the ordered pairs that Samantha needs to plot given as shown;
(19,9) , (8,6) , (10,14) and (4,15)From the given ordered pair, we can see that the outlier is (8, 6) because it lies an abnormal distance from other coordinate points.
We can see that as the x-values is increasing, the y-values is decreasing. Hence the ordered pairs that she still needs to plot are the remaining coordinate order than the outlier.
The coordinates are (19, 9), (10,14) and (4,15)
Learn more on scatter plot here: https://brainly.com/question/6592115
Answer:
(8,6)
Step-by-step explanation:
i hope its helps
Write the following equation in standard form.
10x = -3y + 15
Answer:
10x+3y=15
Step-by-step explanation:
Find the measure of angle PUQ.
Answer:
B. 43
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Answer:
43
Step-by-step explanation:
The angle PUT equals 180 so I simply added 49+52+36 and then subtracted that by 180 to get 43 Hope this helped!
answer the following question please
Answer:
n to the second power is 1
the square root of n is 2 square roots called √n and −√n √n2 = |n|
n = n
Step-by-step explanation:
Given triangle MNK below, find sin M/ Cos K
Answer:
The Answer is A
Step-by-step explanation:
its A I got it right
a data set includes the entire 1,2,4,6,6 and 9. complete the data set with an entry between 1 and 9 so that the median and mode of the set are equal.
Answer:
6
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Write the equation of a line in slope-intercept form for an
equation that has a slope of -94 and a y-intercept of 5.
Answer:
y=-94x+5
Step-by-step explanation:
y=mx+b
m is the slope and b is the y-intercept
Write an equation of a line with the given slope and y-intercept.
3
m =
52
b=
Answer:
BIDEN HARRIS 2024
Step-by-step explanation:
BLACK LIFES MATTER
how many questions did i get wrong if i got a 74% with 50 questions
Answer:
according to my calculations 13
Step-by-step explanation:
lol good job btw ヽ(✿ﾟ▽ﾟ)ノ
Answer: l got 90% wrong
The sum of the number is 103.the second number is 4 times the third.the third number is 5 more then the first .what are the numbers ?
Answer:
13, 18, 72
Step-by-step explanation:
let x-5 represent the first number, since the first number is 5 less than the third number. let x represent the third number. let 4x represent the third number, since it's four times greater than the third number.
set up an equation, and make it equal to 103:
x-5+x+4x=103
solve:
6x-5=103
6x=108
x=18
so, the third number is 18.
the first number is equal to x-5, so:
18-5=13
the second number is equal to 4x, so:
4(18)=72
so, the three numbers are 13, 18, and 72.
If you sleep 45 minutes in each class, with 4 classes per day, how many hours do you sleep in one school year? 60 minutes = 1 hour. 180 days = 1 school year
Answer:
45x4=180 180x180=324000/60=5400
Step-by-step explanation:
Answer:
540 hours i believe
Step-by-step explanation:
45mins X 4 = 3 hours X 180
According to your graphing calculator, what is the approximate solution to the trigonometric inequality cot(x)> -7/8 over the interval 0 <= x <= 2pi radians?
Answer:
Option C
Step-by-step explanation:
See attached the graphical solution
Answer:
It's C
Step-by-step explanation:
Edge 2021
PLEASE ANSWER!!!
7.89 x 9.87
Answer:
77.8743
Step-by-step explanation:
that is the awse if not it should look like 77.874
Answer:
77.8743
That is the answer
Explain why the area of the large rectangle is 10+20.
Answer:
30
Step-by-step explanation:
