Answer:
24
Step-by-step explanation:
Given the equation of the regression line :
y = - 20.3 + 0.489s
where ŷ is the predicted science score
s = IQ score
An actual science test score for a student is 52.6 with an IQ of 100.
Find and interpret the residual.
The predicted science test score for a student with an IQ of 100 is :
y = - 20.3 + 0.489(100)
y = - 20.3 + 48.9
y = 28.6
The residual = actual - predicted score
The residual = 52.6 - 28.6 = 24
Hence, the residual is 24 which is the error in prediction made about the actual score.
Answer:
−1.99; The regression line overpredicts the student's science test score.
Step-by-step explanation:
-1 × f(-9) + 7 × g(6)
Answer:
38
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
Who likes me the best out of the dragon ball universe?
Answer:
meeeee
Step-by-step explanation:
Answer:
vegeta is literally the best character
Step-by-step explanation:
Which number sentence is true?
O A) 196 > 10
OB) 58 > 6.85
OC) -4/ > 25
OD) 8.45 x 102 > 845
Answer:
O A / OD
Step-by-step explanation:
196 is greater than 10
8.45×102 is greater than 845
-3x + 8 = 17 and 1 + 4x = -15
Answer:
1) x= -3
2) x=-4
Step-by-step explanation:
The first equation is :
-3x+8=17
solving for x
-3x=17-8 ------------by collecting like terms
-3x=9
Divide both sides by -3
-3x/-3=9/-3
x= -3
In the second equation
1+4x= -15
solving for x
4x=-15-1
4x = -16
x=-16/4
x= -4
Represent the following sentence as an algebraic expression, where ‘’ a number’’ is the letter x
3 times a number
Answer:
n = x * 3
Step-by-step explanation:
n is your "number"
Answer:
3 × x
Step-by-step explanation:
"a number" = x
"times" = multiplication = ×
3 × x
A football team loses 8 yards in one play, then loses 5 yards in the next. What is the team's total yardage for the two plays?
yards=
Answer:
13 yards
Step-by-step explanation:
HELP!!! DUE IN AN HOUR!!
Answer:
measure 3 equals 121 degrees
Step-by-step explanation:
Measure 2 and 3 make a 180 angle and you subtract 59 from 180 and you get 121.
Help pls I’m confused
Answer:
Scale factor of dilation is [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\\\frac{QR}{Q'R'} = \frac{6}{2} \frac{QR}{Q'R'} = 3[/tex]
Cross multiplication gets:
QR = 3 * Q'R'
Q'R' = 1/3 * QR
So it's 1/3
Can some help me with this I gotta get to 50 im on 48 this the last one
Answer:
Step-by-step explanation:
K (-5, 1)
L (0, 1)
M (0, 3)
N (-5, 3)
the scale is evenly balanced. explain how you could find the weight ( w ) of one turtle.
Answer:
count all of the weight on the right side, subtract 4 pounds from both sides, and divide it by 2.
Step-by-step explanation:
Ok so I need help my little sister is asking me this but I dont remember how to do this stuff so could someone help ? ill give brainliest as soon as possible, thanks </3.
Answer:
the second one 253
Step-by-step explanation:
What happens to the function f(x)=x2 when it becomes f′(x)=x2−3?
A: It moves 3 units to the right.
B: It moves 3 units upward.
C: It moves 3 units downward.
D: It moves 3 units to the left.
An airplane takes off and then climbs 2500 feet. After 20 minutes, the airplane drops 150 feet.
What is the airplane's current height?
Answer:
2350 feet
Step-by-step explanation:
2500-150=2350
Robert earned $10, which was 4 less than twice what Eric earned , How much money did Eric earn?
Answer:
Eric's earning is $7
Step-by-step explanation:
Given
Represent Robert's earnings with R and Eric's with E.
[tex]R = 10\\R = 2E - 4[/tex]
Required
What is the value of E?
Substitute 10 for R in the second equation.
[tex]10 = 2E - 4[/tex]
Solve for 2E
[tex]2E = 10 + 4[/tex]
[tex]2E = 14[/tex]
Solve for E
[tex]E = 14/2[/tex]
[tex]E = 7[/tex]
Eric's earning is $7
p(A∩B)≥P(A), true or false
Answer:
Step-by-step explanation:
false
as A∩B≤A
so P(A∩B)≤P(A)
(3х - 2y = 8
(х+5y = 7
Answer:
21y
Step-by-step explanation:
you welcome
4p + 2р - Зр
Oi mans needs help
Answer:
3p
Step-by-step explanation:
4p + 2р - Зр
Combine like terms
6p -3p
3p
Think of 4p as having 4 pizzas
Adding on 2 more pizzas gets you 4p+2p = 6p
So we have 6 pizzas now.
Then we subtract off 3 pizzas
6p-3p = 3p
Leaving us with 3 left when everything is said and done
So,
4p + 2p - 3p = 6p-3p = 3p
Which expression is equivalent to (4 - 7)(2x - 1)?
The equivalent expression to [tex](4-7)(2x-1)[/tex] is [tex]-6x+3[/tex]
First, you multiply the binomials using the multiplying binomial that you are used to. I like to use the box method.
Multiply 4 by 2x and -1 and multiply -7 by 2x and -1
[tex]8x-14x-4+7[/tex]
Then, add like terms.
[tex]-6x+3[/tex]
What is (2 + 4i) + (-6-4i) simplified?
9/12-1/5???What is the answer????
Answer:
0.55
Step-by-step explanation:
Answer:
11/20 or 0.55
Step-by-step explanation:
9/12
- 1/5
_____
11/20
(sorry if wrong)
How do you do this question?
Answer:
(8√2) / 15
Step-by-step explanation:
A curve bounded by the y-axis is represented by in terms of dy;
[tex]\int \:x\:dt[/tex]
When the curve crosses the y-axis, x will be 0. In this case x is the function of t, so we have to solve for x(t) = 0;
0 = t^2 + 2t --- (1)
Solution(s) => t = 0, t = 2
dy = (1/2 * 1/√t)dt --- (2)
Our solutions (0, 2) are our limits. The area of the curve is in the form [tex]A\:=\:\int _b^a\:f\left(t\right)g'\left(t\right)dt[/tex] , so now let's introduce the limits of integration, x(t) and dy/dt. Remember, dy/dt = (1/2 * 1/√t) (second equation). 1/2 * 1/√t can be rewritten as 1/2 * t^(-1/2)....
[tex]A\:=\:\int _2^0\:\left(t^2-2t\right)\left(\frac{1}{2}t^{-\frac{1}{2}}\right)dt\\\\= \int _2^0\:\left(\frac{1}{2}t^{\frac{3}{2}}-t^{\frac{1}{2}}\right)dt\\\\= \left[\frac{t^{\frac{5}{2}}}{5}-\frac{2t^{\frac{3}{2}}}{3}\right]_2^0\\\\= 0\:-\:\left(\frac{4\sqrt{2}}{5}-\frac{4\sqrt{2}}{3}\right)\\\\= \frac{8\sqrt{2}}{15}[/tex]
Your solution is 8√2 / 15
1. Find the area of the polygon, explain your process.
a
Zero
b
Undefined
c
Positive
d
Negative
Answer: C: Negative
Step-by-step explanation: That's what I assumed you're asking due to the absolute lack of info
1
The expression $1.75 + $0.15x can be used to find Mr. Thompson's cost for
making x dozen cookies. How much does it cost Mr. Thompson to make 25
dozen cookies? {Write an equation.} *and also ( solve and equation).
Answer:
Step-by-step explanation:
3x - 4y = 13 (1)
2x + y = 5 (2)
——————
3x - 4y = 13
4(2x + y = 5) (2) times 4
——————-
3x - 4y = 13
8x + 4y = 20
——————-
11x = 33
x = 33/11
x = 3
Plug x = 3 in (2):
2(3) + y = 5
6 + y = 5
y = 5-6
y = -1
Thus, x = 3 and y = -1
7th grade help me plzz
Answer: The temperature rose 20 degrees celsius
Step-by-step explanation:
the difference between -10 and 10 is 20.
Answer: 20 degrees Celsius
Step-by-step explanation:
Explanation:it just is do the math
Please answer this correctly without making mistakes
Answer:
It would be the green chart
Step-by-step explanation:
Answer:
Green Chart
Step-by-step explanation:
PLEASE HELP!!! Inequality's
Answer:
(6,-3) should work but there are infinite answers
Step-by-step explanation:
There are 39 calories in 12 fluid ounces of a tea drink. Based on the information how many calories are in 39 calories of the tea drink. Please show work!!!!!
A. 117
B.900
C.87
D.147
Answer:
117
Step-by-step explanation:
question 7 i mark as brainliest
please help and answer quickly
Answer:
60
Step-by-step explanation: