Answers
Answer:
It should be B
Step-by-step explanation:
Related Questions
What is the solution to this equation?
2x + 10 = 28
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.
Answers
Hopefully this helps
Education reform is one of the most hotly debated subjects on both state and national policymakers’ list of socioeconomic topics. Consider a linear regression model that relates school expenditures and family background to student performance in Massachusetts using 224 school districts. The response variable is the mean score on the MCAS (Massachusetts Comprehensive Assessment System) exam given to 10th graders. Four predictor variables are used: (1) STR is the student-to-teacher ratio in %, (2) TSAL is the average teacher’s salary in $1,000s, (3) INC is the median household income in $1,000s, and (4) SGL is the percentage of single-parent households. A portion of the data is shown in the accompanying table.
Score STR(%) TSAL(in $1000) INC(in $1000) SGL(%)
227.0 19.00 44.01 48.89 4.70
230.67 17.90 40.17 43.91 4.60
. . . . .
. . . . .
230.67 19.20 44.79 47.64 5.10
Required:
a. For each explanatory variable, discuss whether it is likely to have a positive or negative causal effect on Score.
b. Find the sample regression equation. Are the signs of the slope coefficients as expected?
c. What is the predicted score if STR = 18, TSAL = 50, INC = 60, SGL = 5?
d. What is the predicted score if everything else is the same as in part(c) except INC = 80?
Answers
Answer:
A:
STR= -
TSAL= +
INC=+
SGL=-
B:
231.89 - .50 - .02 + .29 -.88
B2:
STR=Y
TSAL=N
INC=Y
SGL=Y
C:
234.89
D:
240.69
Step-by-step explanation:
Could someone help me figure this out??
Answers
Answer:
180
Step-by-step explanation:
pls help me with this asap!!
Answers
19.20 you have to do a squared times b squared and the square root them and there's your answer
An army of clone warriors is quadrupling every year. If the army started with only one warrior
named Clone Alpha, how many clones will there be in a decade?
A) 262,144 clones
B) 4,194,304 clones
C) 1,048,576 clones
D 10,485,760 clones
Answers
Answer:
C) 1,048,576 clones
Step-by-step explanation:
An army of clone warriors is quadrupling every year.
This means that the amount of clone warriots after t years is given by:
[tex]A(t) = A(0)4^t[/tex]
Started with only one warrior:
This means that [tex]A(0) = 1[/tex], so:
[tex]A(t) = 4^t[/tex]
How many clones will there be in a decade?
A decade is 10 years, so this is A(10).
[tex]A(10) = 4^{10} = 1,048,576[/tex]
The correct answer is given by option C.
(2+√2) is
an integer
a rational number
an irrational number
none of these
Answers
Answer:
Irrational number
Step-by-step explanation:
√2 is an irrational number.
So, when a integer or rational number is added to irrational number, we will get irrational numbers
2 + √2 is an irrational number.
A number cube labeled one though six is rolled and a letter is selected from the word MUSIC. Find each probability.
P(2 and S)
a. 1/6
b. 1/5
c. 1/30
d. 1/11
HELP
Answers
Answer:
1/30
Step-by-step explanation:
6. There are 424 students at Scobey Middle School. About how many can
be expected to prefer chocolate chip cookies?
Answers
If you do this for me you get Brainlyist
Answers
Answer:
v - √19
Step-by-step explanation:
the answer is v - √19
PLEASE PLEASE HELP ILL MARK U AS BRAINLIST I NEED HELP ASAP !
Answers
Answer:
4.24 is the answer
PLEASE ANSWER THIS QUESTION FAST Please qucickllyyy
Answers
Answer: 21.4
Step-by-step explanation:
Area of a triangle = (1.7 * 2)/2=1.7 m2
Area of a rectangle = 3 * 2 = 6 m2
3 * 6 = 18 m2 2 * 1.7 = 3.4 m2
the total area is 18 + 3.4 = 21.4 m2
Sam is designing an open wooden box in the shape of a rectangular prism. The base of the box will be 6 feet by 8 feet. He has not yet decided what the height will be.
Answers
Answer:
10ft
Step-by-step explanation:
Let assume the volume of the box be 480ft^3
Required
height h
Volume of the box = length * width * height
Substitute
480 = 8 * 6 * h
480 = 48 * h
h = 480/48
h = 10ft
Hence the height of the box if the volume of 480ft^3 is 10ft
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answers
Answer:
3rd one
Step-by-step explanation:
Answer:
<VWT and <UTW
<STW and <XWT
how do you solve 6 1/2 x 16?
Answers
Answer:
Step-by-step explanation:
Make 6 1/2 an irrational fraction: 13/2 (I dunno know if its called that )
divide 16 by 2: 8
multiply that by 13: 104
Tell me if this helps or not bc I'm not really sure, but I really hope I helped!
please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
A) 40
B) 20
Step-by-step explanation:
By Length · Width · Height
A) (5) · (4) · (2) = 40
For part B, the length and width are the same, but the depth (height) of the water is only one foot, so we can replace the height value from the first equation with 1.
B) (5) · (4) · (1) = 20
Describe the shape that results from a cross section that is parallel to the base of a right cylinder.
Answers
Answer:
Circles
Step-by-step explanation:
Think of a soup can sitting on its base on a kitchen counter. The counter is an example of a plane (through) parallel to the base. The points where the can and counter intersect form a circle. Put a book on top of the can. Again, the plane of the book is parallel to the base and the book and can intersect in a circle.
The same thing would happen if you cut the can open with a plane anywhere in between the two mentioned above, but it would make a mess!
The answer is circles. If you cut this shape in half you will get two circles.
A city has a population of 51,368. If the population grows 1.8% each year, what will the
population be in 5 years (rounded the nearest whole number)?
Answers
Answer:
56,161
Step-by-step Thought Process:
Use the equation: [tex]a(1+r)^x[/tex] to solve this problem. Let x= time in years, a= initial amount, and r= growth rate.
[tex]a(1+r)^x[/tex] = [tex]51368(1+0.018)^5[/tex]
When you solve you get this number:
56,160.57516085
Round to the nearest whole number:
56,161
A party rental company has chairs and tables for rent. The total cost to rent 5 chairs and
3 tables is 31$. The total cost to rent 2 chairs and 6 tables is 52$. What is the cost to rent each chair and each table?
Answers
Answer:
1 Chair= $1.25 1 table= $8.25
Step-by-step explanation:
5c+3t=31
2c+6t= 52
-2(5c+3t=31)
-10c-6t=-62
+
2c+6t=52
= -8c=-10
/-8 /-8
c= 1.25 or 1 1/4
2c+6t=52
2(1.25)+6t=52
2.5+6t=52
-2.5 -2.5
6t= 49.5
/6 /6
t= 8 1/4
The recipe for a fruit salad calls for 5 bananas, 3 peaches, 2 apples, 1 pear, 8 strawberries, 1 cantaloupe, and 2 oranges. What is the ratio of peaches to the total?
Answers
Answer:
3/22
Step-by-step explanation:
add all fruits together-
5+3+2+1+8+1+2
8+3+9+2
11+11
22
there are 3 peaches. Ratio- peaches/total
Ratio- 3/22
Hope this helps. Have a nice day you amazing bean child.
Answer:
3/22
Step-by-step explanation:
also hi
4. Find the greatest number which divides 171 and 251 leaving the remainders
3 and 6 respectively.
Answers
Answer:
The answer is 7.
what is the arc length of s in the figure below
Answers
Answer:
2.18ft
Step-by-step explanation:
what is the arc length of s in the figure below
Length of the arc = theta/360 * 2πr
r is the radius = 1ft
theta = 125 degrees
Substitute into the formula
Length of the arc = 125/360 * 2(3.14)* 1
Length of the arc = 785/360
Length of the arc = 2.18ft
Hence the length of the arc is 2.18ft
(2x+1)(x^3+2x^2-3) I need this answer
Answers
Answer:
2^4+5^3+2^2−6−3
Step-by-step explanation:
Distribute, Combine like terms, Rearrange terms from most ^# to least- then -3
Answer:
= 2x⁴+5x³+2x²-6x-3
Step-by-step explanation:
(2x+1)(x³+2x²-3)
= (2x⁴+4x³-6x)+(x³+2x²-3)
= 2x⁴+4x³-6x+x³+2x²-3
= 2x⁴+5x³+2x²-6x-3
20points!!!!
PLEASSEE HELPP
WILL GIVEE BRAINLIEST!!!!!!!!
Answers
Select the expression that is less than 10 2/3
.
Answers
Answer:
A.
Hope this helps :D
If y= 1/2x and x = -14 find y
Answers
Answer:
y = -7
Step-by-step explanation:
y = 1/2x
x = -14 (given)
y = 1/2 × (-14)
= -7
Answer:
y= -7
Step-by-step explanation:
Just plug -14 in for x to calculate y
y=1/2(-14)= -7
The gene for black coat color (B) is dominant over the gene for brown coat color (b) What percent of the offspring are expected to have brown coat color as a result of a cross between a dog with black coat color (Bb and a dog with brown coat color (bb)? A:25 B:50 c:75 d:100 answer quick please!
Answers
Answer:
errrr- I dont know but good luck !
Step-by-step explanation:
Answer:
Most likely A
Step-by-step explanation:
Considering at the beginning it says the gene for back coat color is dominant, it makes brown coat color less dominant
What is the area of the triangle?
Answers
Answer:
120
Step-by-step explanation:
since its a right-angled triangle you will use the formula:1/2 of the base × height
Answer:
[tex]120^{2}[/tex]
Step-by-step explanation:
Heron's formula
(for every triangle, you can use this same formula. just change the value of the letters)
a = 26
b = 10
c = 24
s = area
S = [tex]\sqrt{s(s - a)(s - b)(s - c)}[/tex]
S = [tex]\frac{(a+b+c)}{2}[/tex]
Please help me with this ASAP ASAP please please help
Answers
9514 1404 393
Answer:
h = 7 in
LA = 42π in²
SA = 60π in²
Step-by-step explanation:
Use the appropriate formula with the numbers you know, and solve for the number you need to know.
V = πr²h
h = V/(πr²) = (63π in³)/(π(3 in)²)
h = 7 in
__
LA = 2πrh
LA = 2π(3 in)(7 in)
LA = 42π in²
__
SA = 2πr(r +h)
SA = 2π(3 in)(3 in +7 in)
SA = 60π in²
Find the missing value to the nearest whole number sin17 = x7
Answers
Answer:
the nearest value is 1700
Answer:
-7
Step-by-step explanation:
the landscaper uses 4 bags of topsoil to cover 3/8 of the garden. how many bags of topsoil will he need to buy to cover the whole garden