Answer: Predicted level of social skill will be 46
Step-by-step explanation:
For a linear regression; the general equation is in the form;
y = mx + c
Where is the predicted value or variable
m = slope or gradient (regression coefficient )
c = intercept which is constant (this is where the line of best for crosses the y-axis.
y = predicted value
x = independent variable
Given the following:
Regression coefficient (m)= 3
Regression constant (c)= 16
Score(x) = 10 (independent variable)
From:
y = mx + c
y = 3(10) + 16
y = 30 + 16
y = 46
Predicted level of social skill will be 46
The conditional relative frequency table was generated using data that compares the favorite subjects of male and female students at a high school. The survey was given to 120 male students and 180 female students.How many students in the survey said that math was their favorite subject?
Answer:
Im pretty sure its D- 123
Step-by-step explanation:
Edg 2020
This can have more than one option answer this fast in two minutes
Answer:
Just QT and UX
Step-by-step explanation:
QT and TX intersect and are not parallel.
QU and ST are not parallel or intersecting.
QT and WX are not parallel or intersecting.
QT and UX are parallel.
cube of -1/2 is equal to-----------. i need urgent please.I will mark brainest
Answer:
-1/8
Step-by-step explanation:
(-1/2)(-1/2)(-1/2)=-1/8
Answer:
[tex] \frac{ - 1}{8} [/tex]solution,
[tex] (\frac{ - 1}{2} ) ^{3} \\ = \frac{( { - 1)}^{3} }{( {2}^{3} )} \\ = \frac{ - 1 \times ( - 1) \times ( - 1)}{2 \times 2 \times 2} \\ = - \frac{ 1}{8} [/tex]
hope this helps...
Good luck on your assignment
Here were 87 sunflowers at the flower shop in the morning. There were 56 sunflowers left at the end of the day. How many sunflowers were sold? Explain a way to solve the problem.
Answer:
31
Step-by-step explanation:
We just have to calculate 87 - 56 which is 31 so the answer is 31 sunflowers.
Answer:
31
Step-by-step explanation:
Since we know that we started with a higher number than we ended with, it is obvious that this is a subtraction problem. Then, we simply have to find the difference by subtracting 87 by 56 (87 - 56 = x). After the calculation, we see that the answer is 31 (87 - 56 = 31).
) We throw 9 identical balls into 7 bins. How many different ways are there to distribute these 9 balls among the 7 bins such that no bin is empty? Assume the bins are distinguishable (e.g., numbered 1 through 7).
Answer:
28 ways
Step-by-step explanation:
After placing 1 ball in each of the seven bins, there are two balls left.
If we place both balls in a single bin, there are 7 different ways to place the balls (place both on bins 1 through 7).
If we place each of the remaining balls in a different bin, the number of ways to place the balls is:
[tex]n_2=\frac{7!}{(7-2)!2!}=7*3=21[/tex]
The total number of ways to distribute those balls is 21 + 7 = 28 ways.
A herd of bison currently has 55 members. Based on the available resources,
biologists estimate that the size of the herd will increase at a rate of 6% per
year. Which of the following graphs models this relationship, if the x-axis
represents years and the y-axis represents number of bison?
The equation y is equal to 55(1.06) to power x models the relationship between the x-axis which represents years and the y-axis, which represents number of bison.
What is an exponential function?It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent y = a^x
where a is a constant and a>1
We have:
A herd of bison currently has 55 members, and biologists estimate that the size of the herd will increase at a rate of 6% per year.
We can model this relationship:
[tex]\rm y = 55(1+0.06)^x\\\\\rm y = 55(1.06)^x[/tex]
Thus, the equation y is equal to 55(1.06) to power x models the relationship between the x-axis which represents years and the y-axis, which represents number of bison.
Learn more about the exponential function here:
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help help meeeee pls
Select an equation for this graph please help me.
A is the answer.
First, figure out all the coordinates for the points marked red( I Did this for all except first one, which was not on the right point)
They were:
-1,1
0,2
1,4
2,8
3,16.
Then, we must do trial and error for each of the options until we find one that fits perfectly. Luckily, the first option was right!
Hope this helps
In the diagram, the measure of angle 6 is 98°. what is the measure of angle 7?
Answer:
7∠82°
Step-by-step explanation:
Well angle 6 and 7 are complementary angles, meaning they both add up to 180°.
So we do 180 - 98 which is 82°.
Answer: The measure of angle 7 is 82 degrees.
Step-by-step explanation:
Angle 6 and 7 lies on a straight line so they will add up to 180 degrees.
So if Angle 6 is 98 degrees then an a number plus 98 has to equal 180.
so we could generate an equation as x + 98 = 180
x + 98 = 180 solve for x
-98 -98
x= 82
the point P = (x, 1/2) lies on the unit curcle shown below. what is the value of x in the simplest form
Answer:
x=sqrt(3)/2 or -sqrt(3)/2
Step-by-step explanation:
(x,1/2) is on the unit circle at pi/6 and 5pi/6.
so x is either sqrt(3)/2 or -sqrt(3)/2
Answer: [tex]-\sqrt{3}/2[/tex]
Step-by-step explanation: I did the question and got it right
NEED MATH HELP NOW. Need help find the vertex and y intercept. Please show work.
Answer:
Vertex: ( 1 , 9 )
Y-intercept: ( 0 , 8 )
Step-by-step explanation:
y = - (x+2) (x-4)
y = -x² + 2x + 8
Find the vertex.
x = -b/2a
x = -2/2(-1)
x = -2/-2
x = 1
y = -(1)² + 2(1) + 8
y = -1 + 2 + 8
y = 9
Find the y-intercept.
Put x as 0.
y = -(0)² + 2(0) + 8
y = 8
A page in an average newspaper has 8 columns of print. Each column consists of 160 lines and each line averages 6 words. What's the average number of words on a full page?
Answer:
7,680
Step-by-step explanation:
A page has 8 columnsEach column consists of 160 lines.Each line averages 6 words.The average number of words on a full page
=Number of columns X Number of Lines X Number of words per line
=8 X 160 X 6
=7680
The average number of words on a full page is 7,680.
what is the solution to this equation? 4X equals 32
Answer:
x = 8
Step-by-step explanation:
4x = 32
Divide each side by 4
4x/4 = 32/4
x = 8
The solution to the equation 4x = 32 is x = 8.
How to evaluate and solve the given equation?In order to evaluate and solve this equation, we would have to apply the PEMDAS rule, where mathematical operations within the parenthesis (grouping symbols) are first of all evaluated, followed by exponent, and then multiplication or division from the left side of the equation to the right.
Lastly, the mathematical operations of addition or subtraction would be performed from left to right.
Based on the information provided, we have the following mathematical equation:
4x = 32
By dividing both sides of the equation by 4, we have:
x = 32/4
x = 8
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Pls help I’ll give u 5 points
Answer:
Step-by-step explanation:
A
-2>-7
someone help me asap please/math 10
Answer:
Step-by-step explanation:
4. a) tan x=17/12=1.416
x=54.8≈55
b)sin b=78/132=0.59
b=36.2≈36
cos 28=x/82
x=82*cos 28=82*0.9=73.8
Please can someone help with the question below
Answer:
The inequality shown here is
-3 ≥ x < 2
Hope this helps
4.8x10^-3 as an ordinary number
Answer:
0.008.
Step-by-step explanation:
10^-3 basically tells you to move the decimal point to the left by three digits.
Right now, you have 8. If the decimal point were to move left by three digits, you can visualize 8 as 0008. Move left by three digits, and you get 0.008.
Hope this kind of helps!
Answer:
0.008.
hope this helps :)
What is the recursive formula for this arithmetic sequence?
-4, 3, 10, 17, ...
O A. (2= -4
Tan = 8-1-7
O B.
(a = 17
lan = an-1-7
= -4
O C.
la,
= 2n-1 +7
= 17
O D.
1 an = 2n-1 +7
Answer:
c
Step-by-step explanation:
The recursive formula for the given arithmetic sequence is a₁ = -4 and aₙ = aₙ₋₁+7
What is an arithmetic sequence?The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).
The arithmetic progression has wider use in mathematics for example sum of natural numbers.
Natural number = 1,2,3,4,5,6,7,8...
Given arithmetic sequence is -4, 3, 10, 17, ...
First term a₁ = -4
Common difference (d) = 3 - (-4) = 7
Now the nth term is given by :-
aₙ = aₙ₋₁+d
So according to our series, it will be
aₙ = aₙ₋₁+7
Hence, the recursive formula for this arithmetic sequence -4, 3, 10, 17, ...
will be a₁ = -4 and aₙ = aₙ₋₁+7
For more about Arithmetic progression
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Help help help please
Hey there! :)
Answer:
x = -7/12.
Step-by-step explanation:
Given:
[tex]x + \frac{5}{12} = -\frac{1}{6}[/tex]
Create a common denominator for each term:
[tex]\frac{12x}{12} + \frac{5}{12} = -\frac{2}{12}[/tex]
Disregard the denominator:
12x + 5 = -2
Subtract 5 from both sides:
12x = -7
Divide both sides by 12:
x = -7/12.
simplify radical sign 0.08^12
Answer:
√0.08¹² = 0.08⁶
Answer:
[tex]0.08^6[/tex]
Step-by-step explanation:
[tex]\sqrt{0.08^{12}}[/tex]
The square root can be written as an exponent.
[tex]0.08^{12 \times 1/2}[/tex]
Multiply the exponents.
[tex]0.08^6[/tex]
what is 8 divided by 2 with 2+2 inn the parenthesis. I want to befriend the first person to get it. It's hard but have fun!!!
Answer:
16 or 1. There are 2 different answers depending on how you take the question as.
Step-by-step explanation:
8÷2(2+2)=
8÷2(4)=
4(4)=
16
OR
8÷2(2+2)=
8÷2(4)=
8÷8=
1
BRAINLIEST!!! PLEASE HELP! Find the number of four-digit numbers which are not divisible by 4
Answer
4141
4141/4=1035.25
Answer:
5234
Step-by-step explanation:
11. Three men can build a wall in 10 hours. How
many men would be needed to build the wall in
7 hours?
Answer:
Man-hours to build the wall: 3 * 10 = 30
:
let m = no. of men required to do it 7.5 hrs
7.5m = 30
m = [tex]\frac{30}{7.5}[/tex]
m = 4 men to build it in 7.5 hrs
Step-by-step explanation:
All isosceles triangles are equilateral.
O A True
B. False
Answer:
False
Step-by-step explanation:
Isosceles means at least two sides are equal
Equilateral means all three sides are equal
All Equilateral are isosceles, but not all isosceles are equilateral
Answer:
FalseStep-by-step explanation:
Equilateral triangle have all sides equal to each other. Isosceles only have to have two sides equal, so the statement is false.
I'm always happy to help :)pls help me with this 2x = 8 (mod 10)
Answer:
x = 4
Step-by-step explanation:
2x = 8
Divide both sides by 2.
x = 8/2
x = 4
The value of x in the equation is 4.
prove that the difference between squares of consecutive even numbers is always a multiple of 4
Answer:
Let's call the numbers n and n + 2.
(n + 2)² - n²
= n² + 4n + 4 - n²
= 4n - 4
= 4(n - 1)
-3.42, 10.26, -30.78, 92.34, ___,... what is the next number
Answer:
-277.02
Step-by-step explanation:
Given series:
-3.42, 10.26, -30.78, 92.34,...We can see the series is a GP with common ratio of -3, as:
10.26/-3.42= -30.78/10.26= 92.34/-30.78= -3So the next term will be:
92.34 × (-3)= -277.02Major arc BLJ measures 249 degrees. Find the measure in degrees of
angle K.
2490
B
J
L
K?
K
Answer:
m∠K = 69°
Step-by-step explanation:
"When two tangents or secants intersect outside the circle, exterior angle formed between the tangents of secants is one half the difference of major and minor arcs"
By this theorem,
m(∠K) = [tex]\frac{1}{2}[m(\widehat{LBJ}-m(\widehat{LJ})][/tex]
Here, [tex]m(\widehat{LBJ})[/tex] = 249°
[tex]m(\widehat{LJ})[/tex] = 360° - 249°
= 111°
m∠K = [tex]\frac{1}{2}(249-111)[/tex]
= [tex]\frac{138}{2}[/tex]
= 69°
Therefore, measure of angle K = 69° will be the answer.
You want path 2 to be equidistant from the crocodile river and the habitat you chose. Path 2 represents what mathematical object?
Answer:
The object would be a Parabola
Step-by-step explanation:
The mathematical object which represent the given situation is the parabola.
Given that, you want path 2 to be equidistant from the crocodile river and the habitat you chose.
What is a parabola?
In mathematics, a parabola is a plane curve which is mirror-symmetrical and approximately U-shaped. It fits several superficially different mathematical descriptions, which can all be proved to define exactly the same curves. One description of a parabola involves a point and a line.
Therefore, the mathematical object to represent the given situation is the parabola.
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y is inversely proportional to x.
when y=7 , x=9
a) work out an equation connecting y and x
b) work out the value of y x=21
Answer:
1. [tex]xy = 63[/tex]
2. [tex]y = 3[/tex]
Step-by-step explanation:
Given
Variation: inverse Proportion
y = 7, x = 9
Required
- Write an equation connecting y and x
- Find y when x = 21
Given that thee variation is inversely proportional;
This implies that
[tex]y\ \alpha\ \frac{1}{x}[/tex]
Convert variation to equation
[tex]y\ = \frac{k}{x}[/tex] ----------- Equation 1
Where k is the constant of variation
Substitute 7 for y and 9 for x in equation 1
[tex]7 = \frac{k}{9}[/tex]
Multiply both sides by 9
[tex]9 * 7 = 9 * \frac{k}{9}[/tex]
[tex]63 = k[/tex]
Substitute 63 for k in equation 1
[tex]y = \frac{63}{x}[/tex]
Multiply both sides by x
[tex]x * y = \frac{63}{x} * x[/tex]
[tex]xy = 63[/tex]
Hence, the equation connecting x and y is [tex]xy = 63[/tex]
Solving for when x = 21
Substitute 21 for x in the above equation
[tex]21 * y = 63[/tex]
Divide both sides by 21
[tex]\frac{21 * y}{21} = \frac{63}{21}[/tex]
[tex]y = 3[/tex]