I NEED A ANSWER ASAPP!!!!!
A linear regression has a correlation coefficient of r=0.82
. Would this be a good correlation coefficient? What is the best value you could have for a correlation coefficient? Explain your reasoning completely.
Answer:
not very good
Step-by-step explanation:
the correlation should be almost 1 to be a good representation of the data. 0.82 isn't very close. This would be a pretty "rough" approximation at best. Maybe that's all that's needed but usually something close to 1.. like 0.99 is needed.
What are the common factors of 18 and 42
A. 1,2,3,6,9
B. 1,2,3,6,18
C. 1,2,3,6
D .1,3,6
A boat can travel 140 kilometers on 35
liters of gasoline. How much gasoline will
it need to go 432 kilometers?
Answer: 108 liters of gasoline is needed.
Hope this helps! :)
Given parameters:
Distance = 140km
Volume of gasoline = 35liters
Unknown:
Volume of gasoline needed for 432km = ?
Solution:
Let us first find the rate of gasoline consumption per mile. Using this value, we can then determine the volume of gasoline used for the distance given.
Rate of gasoline consumption by the boat = [tex]\frac{volume of gasoline}{distance}[/tex]
= [tex]\frac{35}{140}[/tex]
= 0.25liters/km
Now, the volume of gasoline needed for 432km;
Volume of gasoline needed = rate of gasoline consumption x distance
= 0.25 x 432
= 108liters of gasoline
11. D(-2, 3), E(5, 5), F(-4, 10)
Find the measures of the sides of DEF,then classify it by its sides
Answer:
Step-by-step explanation:
Given the coordinates D(-2, 3), E(5, 5), F(-4, 10), to find the measure of the sides, we will use the formula for calculating the distance between 2 points as shown:
D = √(y2-y1)²+(x2-x1)²
For DE;
D(-2, 3), E(5, 5),
DE = √(5-3)²+(5-(-2))²
DE = √2)²+7²
DE = √4+49
DE = √53
For DF;
D(-2, 3), F(-4, 10)
DF = √(10-3)²+(-4-(-2))²
DF = √7²+(-2)²
DF = √49+4
DF = √53
For EF;
E(5, 5) F(-4, 10)
EF = √(10-5)²+(-4-5)²
EF = √5²+(-9)²
EF = √25+81
EF = √106
Since two he sides DE and DF are equal, this shows that the triangle is an isosceles triangle. An isosceles triangle is a triangle that has two of its sides and angle equal
30 points plz help, I really need it
[tex]-7\sqrt{3}\pi[/tex]
Add similar elements
:)Hope you enjoy this:)Answer:
A. [tex]-7\sqrt{3}\pi[/tex]
Step-by-step explanation:
To find the simplified form of that expression, we have to combine like terms. To do this, we should remember that:
ab + cb = (a + c)b
[tex]\pi\sqrt{3}-8\pi\sqrt{3}=(\pi-8\pi)\sqrt{3}=((1-8)\pi)\sqrt{3}=-7\pi\sqrt{3}=-7\sqrt{3}\pi[/tex]
So the simplified form would be [tex]-7\sqrt{3}\pi[/tex].
I hope you find my answer and explanation to be helpful. Happy studying.
what is the first word
I don't understand the question......
Answer:
Step-by-step explanation:
According to Wiki answers, the first word ever uttered was “Aa,” which meant “Hey!” This was said by an australopithecine in Ethiopia more than a million years ago
the average rain fall in cuba in the summer is 5.3 inches per month. if cuba gets 6.3 inches in june and 7.1 in july how much rain do they need in august to exceed their average
Answer:
They need more than 2.5 inches.
Step-by-step explanation:
average = 5.3
June: 6.3
July: 7.1
August: x
The average of the amounts for June, July, and August is
(6.3 + 7.1 + x)/3
To exceed the average, the average must be greater than 5.3.
(6.3 + 7.1 + x)/3 > 5.3
Multiply both sides by 3.
6.3 + 7.1 + x > 15.9
x + 13.4 > 15.9
Subtract 13.4 from both sides.
x > 2.5
Answer: They need more than 2.5 inches.
Can someone double check this?
Answer:
you good my guy
Step-by-step explanation:
How do you translate words into equations?
Answer:
easy
Step-by-step explanation:
If it is 125 the word form is one hundred twenty-five
d. Does 4 + 25 is equal to 4 + 25? Explain
[tex]4+25=2+25[/tex]
They are equal because their sums both equal [tex]29[/tex].
Answer:
4 + 25 is equal to 4 + 25
Step-by-step explanation:
they are equal because both of the equations are the same so that would mean both of the equations would be equal to each other
hope this helps
what is 8/10 as a decimal
Answer:
the answer will be idkdhhegegegegege 0.8
(? x 3) - 3 = 15
help pls and i need the steps :/
Answer:
4
Step-by-step explanation:
Lets make [tex]x[/tex] be the ? in the equation.
That becomes ([tex]x[/tex] x 3) - 3 = 15.
First you have to add 3 on both sides. After doing that it gets to ([tex]x[/tex] x 3) = 15 - 3.
Then you simplify it to 3[tex]x[/tex] = 12.
Now you divide 3 on both sides. That gets to [tex]x[/tex] = 4 after doing it.
Hope this helped! If not, please let me know! <3
The sum of 9 times a number and 8 is 7. Use the variable c for the unknown number
Answer:
9c + 8 = 7
Step-by-step explanation:
The original price of a jacket is $130. The discount is 40%. Find the sale price.
Answer:
78$
Step-by-step explanation:
lol. ijayabuahysbwush
Which point represents the x-intercept of this exponential function?
Answer:
3
Step-by-step explanation:
because that is where the line (or curve) cuts the x axis
Answer:
Point (3, 0)
How many kilograms did the elephant
weigh at birth?
Answer:
The option not listed
Step-by-step explanation:
The other options don't make sense when comparing it to the graph.
A robot can complete 7 tasks in 2/3 hour.What is the unit rate for hours per task
Answer: The robot can complete 10.5 tasks per a hour because 7 times 2/3 you do the keep change flip
Which well then equal 7 times 3/2 which will then equal 21/10 or 10 1/2 or 10.5
Step-by-step explanation
simplify 5^-4/5^3 (please heeeelp)
Answer: 1/5^7 or 1/78125 <= another way
Step-by-step explanation:
5^−4/5^3
=5^−4/5^3
=5^−4−3
=5^−7
=1/5^7
=1/78125
A polygon has vertices whose coordinates are A(1.4), B(4, -1), C(-1,-4), and D(-4,1). Use the midpoint formula to determine whether or not the diagonals of polygon ABCD bisect each other. In your final answer, include all of your calculations.
Evaluate the function for the given value.
h(a) = 3a + 3
Find h(7).
Answer:
h(7) = 24
Step-by-step explanation:
Hi there !
h(a) = 3a + 3
replace a = 7
h(7) = 3×7 + 3
= 21 + 3
= 24
Good luck !
Please Answer Quickly!
A car has an initial value of $20,000. The value then "depreciates" or decreases by 10% of its initial value each year. Which equation below gives the value of the car, v, after y years?
v = -2,000 y + 20,000
v = 0.10 y - 2,000
v = 2,000 y - 20,000
v = - 0.10 y + 2,000
Answer:
its the second one
i had the question and the last one is wrong soo.....
If you found this helpful I would appreciate it if you thanked or liked.
4. x+ 4 + 7 = 3
How do I solve the absolute value ?
Answer:
-2
Step-by-step explanation:
4x +4 +7 =3
or, 4x = 3 - 11
or, x = (-8) / 4
since,
X = -2
Jefferson high school has 100 less than 5 times As many Students as Taft high school how many students are at Jefferson high school if Taft high school has 300 students
Answer:
1,400
Step-by-step explanation:
300x5=1,500 and 1,500-100=1,400
Marni buys 2.5 pounds of grapefruit for $4.48. To the nearest cent, how much would 6 pounds of grapefruit cost?
Answer:
4.48 x (6/2.5) = $10.75
Find the price of an item that costs $257.50 and has a tax of 5.5%
Answer:
$271.66
Step-by-step explanation:
HELP PLS WORTH 50POINTS
If you have an even integer on a number line which we will call "x", what could you call the next consecutive number? What could you call the next consecutive even integer on the number line?
Answer:I NEED THE ANSWER TO
Step-by-step explanation:
Answer:
x+2
Step-by-step explanation:
Combine these radicals.. please help you'll get brainiest.
Answer:
-54
Step-by-step explanation:
√100= 10√36= 6-6 (10) + 6-6 times 10 is -60
-60 + 6 is -54
if AB || CD, then find value of angle COS, if angle BPO = 120 + - and angle COS = x
====================================================
Explanation:
Angle BPO is congruent to angle POC because they are alternate interior angles and because AB is parallel to CD. So angle POC is 120+x degrees
This adds with angle COS to get 180
(angle POC) + (angle COS) = 180
(120+x) + (x) = 180
2x+120 = 180
2x = 180-120
2x = 60
x = 60/2
x = 30
angle COS = x = 30
angle POC = 120+x = 120+30 = 150
angle BPO = angle POC = 150
What statments are correct? Check all that apply.
Answer:
what is the statements?
Step-by-step explanation:
Find the LCM of x2 + x,x2-1,x2-x
Answer:
[tex]first \: \\ x {}^{2} + x \\ = x(x + 1) \\ \\ second \\ {x}^{2} - 1 \\ = (x) {}^{2} - (1) { }^{2} \\ = (x + 1)(x - 1) \\ \\ third \\ x {}^{2} - x \\ = x(x - 1) \\ \\ therefore \: \: lcm = x(x + 1)(x - 1)[/tex]
It helps you a lot ☺️Thank you ☺️☺️