WILL MARK BRAINLIEST AND 50 PTS This table shows the minutes students spent studying for their science exam and the scores they received. SHOW YOUR WORK
Study time (min) 19 12 34 10 17 42 60 15 9 21 30 50
Exam score 82 78 90 78 85 97 100 85 73 90 91 98
Use a graphing calculator to model the data using a linear function.
What is the correlation coefficient of the data?
−0.74
−0.48
0.93
0.98
Answers
Answer:
The answer is 0.93
Step-by-step explanation:
I took the test
Related Questions
What is the product of 246 and 176?
Answers
Answer:
43296
Step-by-step explanation:
Answer: 43296
Step-by-step explanation:
If you multiply 246 and 176, you get 43296.
2) A pool is being filled with a hose. The equation y=12x represents the relationship between
the number of gallons of water in the pool (y) and the number of minutes the water runs (X). If
this relationship is represented on a graph, which ordered pair would not lie on the line?
NEED HELP ASAP PLS AND THANK YOU SO MUCH
Answers
Answer:
d) (18, 206)Step-by-step explanation:
According to the given relationship, we have:
y/x = 12Use the ordered pairs to find same ratio and compare:
a) 96/8 = 12b) 120/10 = 12c) 180/15 = 12d) 206/18 = 11.44 ≠ 12Hansen and his good buddy Xavier are both mechanics at a shop that does oil changes. They are in a friendly competition to see who can complete the most oil changes in one day. Hansen has already finished 7 oil changes today, and can complete more at a rate of 2 oil changes per hour. Xavier just came on shift, and can finish 3 oil changes every hour. Sometime during the day, the friends will be tied, with the same number of oil changes completed. How many oil changes will Hansen and Xavier each have done? How long will that take?
Answers
2: ( already starts at 7)
9, 11, 13, 15, 17, 19, 21
3: 7th hour
3, 6, 9, 12, 15, 18, 21
7th hour
At the 7th hour, they both have done 21 oil changes.
Look at picure please
Answers
Answer:
[tex]2 {y}^{7} x - 5 {y}^{5} {x}^{2} - 4{y}^{8} {x}^{3}[/tex]
Use the substitution method to solve the system.
2x + 8y = 4
x = -4y - 2
Answers
Answer:
no solution
Step-by-step explanation:
2x + 8y = 4
x = -4y - 2
Divide both sides of the first equation by 2.
x + 4y = 2
x = -4y - 2
Substitute -4y - 2 for x in the first equation.
-4y - 2 + 4y = 2
0 - 2 = 2
0 = 4
Since after doing legal steps, we get a false statement, 0 = 4, that means there is no solution.
Let two cards be delt successively without replacement from a standard 52 card deck find the probability of the event. the first card is a ten and the second is a face card.
HELP PLEASE!!!!
Answers
Answer:
well for the 10 it is a 4/52 chance and for face cards, 16/52
Step-by-step explanation:
PLEASE HELP WITH THIS ONE QUESTION
Answers
Answer:
11
Step-by-step explanation:
pls maerk as brainliest
144 = -12 (x + 5)
find x
Show work.
Answers
Answer:
-17 =x
Step-by-step explanation:
144 = -12 (x + 5)
Divide each side by -12
144/-12 = -12 (x + 5)/-12
-12 = x+5
Subtract 5 from each side
-12-5 =x+5-5
-17 =x
Answer:
[tex]144=-12x-60\\12x=-204\\x=-17[/tex]
Step-by-step explanation:
Is this last one correct?
Answers
Answer:
yes
Step-by-step explanation:
2 1/4 is the most ofen used.
1 1/2 is the least amount of glue needed
subtract it and you get 3/4
Answer:
yes it is
Step-by-step explanation:
Jane went on a 50-minute bicycle ride. Choose the graph that best matches the given key features. Y-intercept: Jane starts at 0 miles from her house…… PLEASE HELP ILL MARK BRAINLIEST
Answers
Explanation: the correct answer is C.
help me quick please --4x-7-3x+4=25
Answers
Answer:
x = 32Step-by-step explanation:
4x - 7 - 3x + 4 =25
=> 4x - 3x = 25 + 7
=> x = 32 (Ans)
What are the measurements of angles x,y,z & w?
Thank you<3
Answers
Step-by-step explanation:
z°=180°-25°
z°= 155°
z°=x°=155° (vertically opposite angle).
w°=25°(alternate angle).
y°=z°=155°(alternate angle).
hope this helps you.
Answer:
See belowStep-by-step explanation:
As AB and CD are parallel lines cut by a transversal, we have:
∠x and ∠z are congruent as vertical angles∠x and y are congruent as corresponding angles∠w is congruent with 25° as alternate interior anglesSo the measures are:
m∠x = m∠y = m∠y = 180° - 25° = 155° (supplementary angles sum to 180°)m∠w = 25°2.Pleas can someone answer!
Answers
Answer: A, A, C
Step-by-step explanation:
Educated Guess because none of them are going to be zero so it's either A or C but the point has a negative y so to plug it all in all of them have to be negative ex. -1 + -1 + -1 =-3
the x is -1 so both have to be negative in order to get -3
Evaluate the expression 6^2-(8–4^2+7
Answers
Answer
11
you can confirm from by yourself or tell
please mark this answer as brainlist
The temperature at 10:00 a.m was -3 and increased 2.25 each hour for the next 5 hours.What was the temperature at 3:00pm?
Answers
9514 1404 393
Answer:
8.25°
Step-by-step explanation:
The increase over 5 hours was ...
(5 h) × (2.25 °/h) = 11.25°
When that is added to the starting value, the ending value is ...
-3° +11.25° = 8.25°
The temperature at 3:00 pm was 8.25°.
f(x) = 3x + 6 please help quickly!!!!!!!
Answers
Given the function, f(x) = 3x + 6, we can solve for f(a), f(a + h) and [tex]\frac{(f(a + h) - f(a)) }{h}[/tex] by substituting their values into f(x) = 3x + 6. We will have the following:
[tex]\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}[/tex]
Given:
f(x) = 3x + 6We are told to find:
f(a)f(a + h), and[tex]\frac{(f(a + h) - f(a)) }{h}[/tex]1. Find f(a):
Substitute x = a into f(x) = 3x + 6f(a) = 3(a) + 6
f(a) = 3a + 6
2. Find f(a + h):
Substitute x = a + h into f(x) = 3x + 6f(a + h) = 3(a + h) + 6
f(a + h) = 3a + 3h + 6
3. Find [tex]\frac{(f(a + h) - f(a)) }{h}[/tex]:
Plug in the values of f(a + h) and f(a) into [tex]\frac{(f(a + h) - f(a)) }{h}[/tex]Thus:
[tex]\frac{((3a + 3h + 6) - (3a + 6)) }{h}\\\\\frac{(3a + 3h + 6 - 3a - 6) }{h}\\\\[/tex]
Add like terms[tex]\frac{(3a - 3a + 3h + 6 - 6) }{h}\\\\= \frac{3h }{h}\\\\\mathbf{= 3}[/tex]
Therefore, given the function, f(x) = 3x + 6, we can solve for f(a), f(a + h) and [tex]\frac{(f(a + h) - f(a)) }{h}[/tex] by substituting their values into f(x) = 3x + 6. We will have the following:
[tex]\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}[/tex]
Learn more here:
https://brainly.com/question/8161429
Which equation does NOT have like terms to collect?
Answers
Answer:
15t+9r=2
Step-by-step explanation:
the terms which are the variables are not the same on any part of the equation
What is the value of W?
Answers
951 4 1404 393
Answer:
w = 17
Step-by-step explanation:
Altitude SU of isosceles triangle RST bisects base RT. This means ...
UR = UT
5w = w+68
4w = 68 . . . . . subtract w
w = 17 . . . . . . divide by 4
x cube + 1 ÷ x squared -x+1
Answers
[tex][ 1 1 1 -1\\ 2 0 3 1\\ 4 x 1 -1\\ 1 0 -1 2 ] = 0[/tex]
Answers
Answer:
5hg vb
Step-by-step explanation:
,hgbn
Answer:
−120314x − 11
Step-by-step explanation:
SOMEONE HELP ME PLEASE
Answers
Step-by-step explanation:
height is find by Pythagoras theorem.
h=4 .
h²=5²-3² = 16
h=4.
area = bh = 4×10 = 40 units .
hope this helps you.
811570 rounded to nearest hundred thousand
Answers
Answer:
800,000
Step-by-step explanation:
8 is in the hundred thousands, 1 is in the ten thousands, 1 is in the thousands, 5 is in the hundreds, 7 is in the tens, 0 is in the ones place
It rounds down as its nowhere near 900,000 which changes all its digits.
Select another way to show 25 times 18
Answers
25 x 18
18 x 25
Multiply. Write your answer as a fraction in simplest form.
8
X
9
Answers
Answer:
40/54 = 20/27
Step-by-step explanation:
PLEASE HELP ITS MATH THANK YOUUUU
Answers
Answer:
3 centimeters : 100 centimeters
Step-by-step explanation:
The scale is 6 centimeters = 2 meters or 6 centimeters : 2 meters
2 meters = 200 centimeters
Both of them are multiples of 2, so simplify:
6/2 centimeters = 200/2 meters
3 centimeters : 1 meter, or 3 centimeters : 100 centimeters
-Chetan K
Hey , help maybe please thanks<3?
Answers
Answer:
48 fluid ounces= 3 pints
Answer:
3 pints
Step-by-step explanation:
[tex]48 \: fl \: oz \: \div \frac{8 \: fl \: oz}{cup} = 6 \: cups[/tex]
[tex]6 \: cups \: \div \frac{2 \: cups}{pint} = 3 \: pints[/tex]
A supermarket advertises a new product by offering samples to customers. The table shows the number of samples distributed each hour. At what rate does the supermarket distributes samples?
Answers
Answer:
38 samples an hour, next time taken the first two numbers in the table and divide the one on the right by the one on the left
WILL GIVE BRAINLIEST!... whats the unit rate of the equation(HAVE TO SHOW HOW YOU GOT ANSWER)
y=-4x
Answers
Answer:
-4
Step-by-step explanation:
The form of a liner equation is y=mx+b. b is 0 in this example. So we are left with y=-4x
-4 is the m, the slope. It is also called the unit rate of change. It tells us how much y changes for each 1x unit.
y x
0 0
-4 1 One unit changes y by -4 : The unit rate of change.
-8 2
I NEED HELP OR I WILL GET A FAT F!!! What Is 6.38 times 5.2 rounded product to the nearest whole number!!!
Answers
Answer:
33.176
Step-by-step explanation:
Brianna works for a large fast food chain recording and publishing training videos for employees. Which job title would Brianna MOST likely have?
Answers
Answer:
Multimedia Specialist
Step-by-step explanation:
Had a question like this before