Question...Sleep is known to affect student grades. Kirsten is conducting a study in a local high school using two treatments on two groups of students. One group will nap one hour in an eight-hour school day and another will nap 30 minutes in an eight-hour school day. What group would be the best control for the study?
Options...
A third group that takes a one-hour nap or a 30-minute nap randomly each day
A third group that shortens the school day to six hours
A third group in which no naps occur
A third group that splits the day with a 30-minute nap in the morning and a 30-minute nap in the afternoon
A third group in which each student chooses either a 30-minute nap or a one-hour nap
Answer:
c
Step-by-step explanation:
a third party group in which no naps occur
What is an equation of the line that passes through the points (4,−1) and (8, 5)? Put your answer in fully reduced form.
HELP PLS
Answer:
y=2/3x-7
Step-by-step explanation:
The slope intercept formula is
y=mx+b
(m) is the slope (rate of change)
(b) is the y intercept (where the line crosses the y axis [vertical])
We need to find the slope and the y intercept. First we will find the slope.
The formula for slope is y1-y2/x1-x2
In and ordered pair the first value is the (x) and the second is the (y).
(x, y)
We take the (y) of one of the given points and subtract the (y) of the second given point, then divide it by the (x) of one of the given points and the (x) of the other given point.
5-(-1)/8-4
Simplify.
5-(-1) =5+1= 6
8-4=4
6/4 Simplify
3/2 is our slope.
Now we apply out new slope into our y=mx+b
y=3/2x+b
Now we need to find the (b) which is the y intercept.
To do this we need to use one of our given points, you can choose either but for this I'll use (4, -1).
In this ordered pair 4 is the (x) and -1 is the (y)
So replace (y) with -1 and (x) with 4
-1=3/2(4)+b
Now solve as usual.
-1=6+b
subtract 6 from each side
-7=b
b=-7
Put our (m) and (b) into our formula.
y=2/3x-7 is our equation.
Wuts the answer to this equation?
17 - 5 x 4 ÷ 2
Answer:
The answer to this equation is 7
help help help help
Answer:
The one on the right is correct. An easy way to remember how to do these kinds of questions is to remember "keep change flip". Keep the first fraction, change the divide sign to multiply, and flip the second fraction
Answer:
the right one is correct
12 points? Please ASAP NEED HELPPPPP
Answer:
she is correct because if you reflect that over the Y axis
Hello Guys Can you please help me
Answer:
4:3 and 4 to 3
Step-by-step explanation:
sorry if I'm wrong
An exterior angle of a triangle has a measure of 80°, and one of the remote interior angles has a measure of 20°. Write and solve an
equation to find the measure of the other remote interior angle.
Enter the correct answers in the boxes.
Equation:
X=
Your answer would be 0.6, 3/5, and 6% are the 3 same portion. But, when they're all changed to a decimal they would equal to 0.6.
Triangle is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
The exterior angle is equal to the sum of the interior angles in a given triangle.
The measure of the other remote interior angle is 60°.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have,
Let the measure of the other interior angle = M
The exterior angle is equal to the sum of the interior angles in a given triangle.
An exterior angle of a triangle has a measure of 80°, and one of the remote interior angles has a measure of 20°.
This means,
M + 20 = 80
Solve for M.
M + 20 = 80
Subtract 20 on both sides.
M = 80 - 20
M = 60
Thus,
The measure of the other remote interior angle is 60°.
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3400 people attended a football game. 2312 of the people attending supported the home team, while 1088 supported the visiting team. What percentage of people attending supported the home team?
Answer:
68%
Step-by-step explanation:
what does each letter of pe = mgh mean?
Answer:
The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity and h is the height in meters.
Hope this helps
Answer:
physical education
Step-by-step explanation:
p: physical
E: education
How many 1/8-inch pieces of ribbon can be cut from a piece of ribbon that is 3/4 inch long? It can't be a fraction, sadly :')
Answer:
6 pieces.
Step-by-step explanation:
3/4 divided by 1/8
= 3/4 / 1/8
Invert the 1/8 and multiply:
= 3/4 * 8/1
= 24/4
= 6.
ASAP
Can someone help me with this pleaseeee
Answer: the very last one
Five less than one third of a number n is smaller than the quotient of the number n and two.
Write a integer for the situation a deposit of $145.50
Helpppp fast pleaseeeee
To make plant fertilizer, you mix 12 ounces of Lime with every 10 ounces of water. If you use 80 ounces of water, how much lime do you need?
Answer:
960 ounces of lime
Step-by-step explanation:
I hope this is right if not I'm really sorry
y = 3x - 2 what is the answer
Answer:
[tex]x = \frac{2}{3}[/tex] [tex]y = -2[/tex]I hope this helps!
Which of the following does not show the Commutative Property of Addition or Multiplication?
a. xy – 9 = xy
b. x + y = y + x
c. yx = xy
d. 3 + y = y + 3
Answer:
XY - 9 = XY
Step-by-step explanation:
You need to be careful when you are driving so 3+y is not the answer because 3 means dead in the language of god and y means yo so Its not the answer. Hope it helps
Write the equation of the line that passes through the given points. (0,2) and( 2,11)
Answer:
9/2
Step-by-step explanation:
The edges of a cube are 5 centimeters each and the diagonal of a face is approximately 7 centimeters. What is the approximate area of the cross section passing through the diagonals of opposite faces of this cube?
A.
12 square centimeters
B.
25 square centimeters
C.
35 square centimeters
D.
49 square centimeters
Answer: 35 square centimeters
Step-by-step explanation:
the answer is C
i did the test
What is the value of 3.5 (11) + 1.9 (11) + 1.6 (11)?
40
77
4,096
9,317
plus brainlyest and im being timed
20 POINTS NO CAP PLEASE HELP ME NEED RIGHT ANSWER
Answer:
-5.7
Step-by-step explanation:
Answer:
-5.4 LOL
Step-by-step explanation:
Which is an equation of the line that passes through the point (5, -2) and has a slope of -3?
A.
y = 3x - 13
B.
y = -3x - 13
C.
y = -3x + 13
D.
y = -x - 3
Answer:
y = -3x + 13
Step-by-step explanation:
y = -3x + 13 is the only formula there that has a slope -3 (as shown in -3x) and is the only one that passes through point 5,-2.
The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The slope of the line is given as,
y = -3x + c
The equation of the line is passing through the point (5, -2). Then we have
- 2 = - 3(5) + c
- 2 = - 15 + c
c = 13
The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.
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which equation describes the nth term of the arithmetic sequence 2, -1, -4, -7
A lady came to the market to sell eggs . We first customer bought 1/2 of all her eggs and 1/2 of an egg. Her second customer bought 1/2 of all the remaining eggs and 1/2 of an egg. At this point she had sold all her eggs. So how many eggs did the lady have when she came to the market
Answer:
3 eggs
Step-by-step explanation:
Let the total number of eggs that the woman brought to the market be represented by x
A lady came to the market to sell eggs.
The first customer bought 1/2 of all her eggs and 1/2 of an egg.
x - (1/2x + 1/2) = y
= 1/2x - 1/2= y
y = Amount of eggs left after the first customer left
Her second customer bought 1/2 of all the remaining eggs and 1/2 of an egg.
At this point she had sold all her eggs.
Hence:
y - (1/2y + 1/2) = 0
y - 1/2y - 1/2
Solving for y
y - 1/2y = 1/2
1/2y = 1/2
y/2 = 1/2
Cross Multiply
2y = 2
y = 1
Solving for x
(1/2x - 1/2) = y
y = 1
1/2x - 1/2 = 1
1/2x = 1 + 1/2
x/2 = 3/2
Cross Multiply
2x = 2 × 3
2x = 6
x = 6/2
x => 3 eggs
At the end of a party, 3/4 cup of dip is left. Jim divides 4/7 of the leftover dip equally between 2 friends. How much dip does each friend get?
Answer:
First, we need to find the amount of dip that was divided amount the two friends.
We know that it is 4/7 of the left dip
therefore:
amount divided among the two friends = (4/7) x (3/4) = 3/7 of the original amount of dip.
This amount is divided among two friends,
therefore:
amount that each friend gets = (3/7) / (2) = 3/14 = 0.2 of the amount of dip
tell me if this is completely wrong because i'm not good at this
Each friend will get 0.2 of the amount of dip.
What is an expression?The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.
Given that a the end of a party, 3/4 cup of dip is left. Jim divides 4/7 of the leftover dip equally between 2 friends.
First, we need to find the amount of dip that was divided amount the two friends. We know that it is 4/7 of the left dip
Amount divided among the two friends = (4/7) x (3/4) = 3/7 of the original amount of dip.
This amount is divided among two friends,
Amount that each friend gets = (3/7) / (2) = 3/14 = 0.2 of the amount of dip
Therefore, each friend will get 0.2 of the amount of dip.
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how to write this numbers in word 125.89
Answer:
one hundered twenty five and eighty nine hundredths
Step-by-step explanation:
Don’t know answer help!!!
Answer:
Step-by-step explanation:
AA
e-intercept form.
2. (2, 4); slope
1
2
write the linear equation in slope-intercept form
to work this out you need to solve for your y-intercept. by using what you have.
once you do so you get the answer y=1/2x+3
Solve the equation. 3/4x+3-2x = -1/4+1/2x+5
Answer:
5
Step-by-step explanation:
Yes
Answer:
The answer is x=-1
Step-by-step explanation:
HELP ME ASAP PLEASEEEEEEEE
Answer:
y= 3/2x+ 360
Step-by-step explanation:
3/2 is the slope
360 is the b (y intercept)
Answer:
slope m = -60
equation y = -60x + 360
Step-by-step explanation:
to find slope use two points given
(x1, y1) = (6, 0)
(x2, y2) = (0, 360)
m = (360-0) / (0-6) = -60
equation y = mx + b
b is the y intercept at (0,360), b= 360
y = -60x + 360
What is the value of the expression 2 Superscript 6?
Answer:
2x2x2x2x2x2 is 64
Step-by-step explanation:
The value of the equations is S = 64
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
A = 2⁶
On simplifying the equation , we get
A = 64
Therefore , the value of A = 64
Hence , the equation is A = 64
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