Answer:
M= 740 [tex] \alpha = 43[/tex]D= 535[tex] \alpha = 25[/tex]You have two samples and two standard deviations We need the average of the take home pay and their combined standard deviation.So combined both regressions to get the total combined.The average weekly salary of friends' parents is 1275$ and the standard deviation is 49.739.
What is the standard deviation?The standard deviation measures the degree of dispersion of a collection of data. Each data point is compared to the average of all the data points, and the standard deviation gives a determined number that indicates whether the data points are clustered together or dispersed. The standard deviation of a normal distribution indicates how far values deviate from the mean.
Given that, Both of my friend's parents are employed. Her mother makes $740 on average per week, with a standard variation of $43. Her father makes $535 on average each week, with a standard variation of $25.
Let X denotes the weekly salary of her mother.
X ~ Normal(740,432)
Let Y denotes the weekly salary of her father.
Y ~ Normal(535,252)
and X and Y are independent.
the average weekly salary of your parents combined = E(X+Y)
= E(X) + E(Y) = 740 + 535 = 1275
the variance of weekly salary of your parents combined = Var(X+Y) = Var(X) + Var(Y) = 432 + 252 = 2474
the standard deviation of the combined salaries = [tex]\sqrt{2474}[/tex] = 49.739
Therefore, Parents of friends make 1275 dollars on average per week, with a standard deviation of 49.739.
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What is 3/8 equal to in decimals..?
Answer:
.375
Step-by-step explanation:
Answer: 0.375
Step-by-step explanation:
Hey there! If you have any questions feel free to leave them in the comments below.
To find the answer you would divide the numerator by the denominator. [tex]\frac{3}{8}[/tex] would be equal to 0.375
~I hope I helped you :)~
If you guess what my name is you get brainliest
A. John
B. Cam
C. Daniel
D. Dickface
E. Seth
F. Taylor
G. Anna.
H. Beth
I. Nerd face.
Answer:
Taylor???????????........
Answer:
I. Nerd Face
Step-by-step explanation:
Question in picture below will give brainly
Answer:
right ^_^
Step-by-step explanation:
abc has two side lengths of 8ft and 19 ft. if angle c is 142 degrees what is the measurement of angle B
Which of the following numerical expressions results in a negative number?
A.
(−18)÷(−3)
B.
(−57)+(−60)
C.
(−18)−(−20)
D.
(−4)×(−5)
"Only one remains." Ryan signals to his brother from his hiding place.
Matt nods in acknowledgement, spotting the last evil robot.
"34 degrees." Matt signals back, informing Ryan of the angle he observed between Ryan and the robot.
Ryan records this value on his diagram (shown below) and performs a calculation. Calibrating his laser cannon to the correct distance, he stands, aims, and fires.
To what distance did Ryan calibrate his laser cannon?
Do not round during your calculations. Round your final answer to the nearest meter.
Answer:
168 m
Step-by-step explanation:
-4= d+3/5
Please help this makes no sense to me
Helppp asappp I need help with 4
Answer:
Step-by-step explanation:
1. Write the equation in point slope form. Remember, point slope form looks like this: y-y1=m(x-x1), with m representing slope. With this equation, you plug in the y coordinate for y1 and the x coordinate for x1. So, it will look like this
y+6=2/3(x+5)
2. Then, convert that into slope intercept form, which is y=mx+b.
y+6=2/3x+10/3 (2/3 * 5)
y= 2/3x - 8/3 (10/3 - 6)
Therefore, your slope-intercept form of the equation is: y=2/3x - 8/3
3. From there, you can graph the line. See the graph in the image attached.
Can someone please help me with this I think I got it wrong ill give brainliest
Answer:
Yes, you are correct because the curve rests on 3 on the x-axis
7 (x+y) - 7 x with all the steps plz
Answer:
7y
Step-by-step explanation:
7x+7y-7x=0+7y=7y
Answer:
7y
Step-by-step explanation:
7(x+y)-7x - Distribute 7 through the peretheses
7x+7y-7x - since two opposites add up to 0, remove them from the expression
= 7y
If point C lies between two points A and B such that AC=BC, then
Answer:
If point C lies between two points A and B such that AC=BC, then point C is the bisector of A and B, that means it is at right the centre.
Right Triangle Trigonometry
Answer:
B. 8
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
Angle = 37°
Adjacent Leg = x
Hypotenuse = 10
Step 2: Solve for x
Substitute [Cosine]: cos37° = x/10Isolate x: 10cos37° = xRewrite: x = 10cos37°Evaluate: x = 7.98636Round: x ≈ 8Step-by-step explanation:
please it my steps to work on paper whorksheet
The circle graph represents the number of teenagers at a high school who play video
games. If 1,938 students go to the school, about how many students play video games?
Please helppppppppp!!!!! :(
Answer:
the answer is 544
Step-by-step explanation:
i had to figure out how much percent was taking then I added and some subtraction and i got 544
If 1,938 students go to the school, about 1394 students play video games.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given that 1938 students go to school.
And the circle graph represents the number of teenagers at a high school who play video games.
And 259° students out of total angle of circle play video games.
That means 259 percentage of 360,
259 = 360 × percentage of students those play video games of the circle/100
percentage of students those play video games of the circle = 259 x 100 / 360 = 71.94%
And the number of students those play video games is
= 71.94% of 1938
= 1938 x 71.94 / 100
= 1394 students
Therefore, if 1,938 students go to the school, about 1394 students play video games.
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Joe mowed 1 1/2 lanws
Answer:
3 3/5 lawns
Step-by-step explanation:
First you have to figure out how much of a lawn he mows in 1 hour. He mows 0.6 of a lawn in one hour.
Next, you multiply 0.6 by 6 to get your answer.
Your answer is 3 3/5 lawns.
Answer:
4
Step-by-step explanation:
6) Determine if the two figures are similar. Present an informal argument to present
as to why they are or are not similar.
Step 1
Step 2
Step 3
Answer:
yes they are similar
step 1: flip it across the y-axis
step 2: translate it 4 units to the right and 5 units down
step 3: dilate it by a factor of 1/2
Step-by-step explanation:
(sec(π/3) + tan(-7π/4))/(1-cos(2 π/3))
Answer:
3
Step-by-step explanation:
3+3_3=3
after that 3+2+6+7+7+8+8+9+9+9+9+9+0+0+8+6+5+4+ 5=?
u will do the answer and it will be done
Please answer this correctly without making mistakes
Answer:
$25-$9.9
Step-by-step explanation:
45/100
0.45*$25
$9.9
$25-$9.9
it cost 14.1
7 c = ___qt??????????????
Answer:
1.75qt
Step-by-step explanation:
Answer:
The basketball travels in a parabolic route in order to engage in the passage through the net.
Step-by-step explanation:
What additional information can be included in the figure showing kite ABCD with
diagonals AC and D?
A) _B= 20
B) is a perpendicular bisector of
C) 21+ m_C = 180°
OD C = 30
Given:
In ABCD, AB=BC, AD=CD.
To find:
The additional information that can be included in the figure showing kite ABCD with diagonals AC and BD.
Solution:
We know that, a quadrilateral is a kite if,
1. Two pairs of congruent sides which are adjacent to each other.
2. One diagonal is perpendicular bisector of other.
From the given information, we have two pairs of consecutive congruent sides AB=BC and AD=CD.
ABCD is a kite if it holds the second property, i.e., one diagonal is perpendicular bisector of other.
So, the required additional information is "segment BD is perpendicular bisector of segment AC".
Therefore, the correct option is B.
Answer:
B
Step-by-step explanation:
BD is a perpendicular bisector of AC
Consider two bases B = {b1, b2, b3} and C = {c1, c2, c3} for a vector space V such that
b1 = c1 + 3c3, b2 = c1 + 4c2 - c3, and b3 = 5c1 - c2. Suppose vector x = b1 + 6b2 + b3. That is,
suppose space left square bracket bold italic x right square bracket subscript B space equals open square brackets table row 1 row 6 row 1 end table close square brackets . Find space left square bracket bold italic x right square bracket subscript B space, the coordinates of the vector x in basis C.
Solve for M in the formula S= C+M.
A. M= S+ C
B. M= S - C
C. M= SC
D. M= s/c
Answer:
im pretty sure its a
Step-by-step explanation:
help meeeeeeeeeeeeee
Answer:
16
Step-by-step explanation:
Answer: 16
Step-by-step explanation: If we are relating the flour to the cookies it would simply be 48/3. It takes 3 cups of flour to make 48 cookies, so we know that each cup provides 16 cookies.
HELP
i need a graph of 10x+6y=150
Rearrange the equation to get it into slope intercept form:
10x+6y=150
6y=-10x+150
y=-5/3x+25
The slope is -5/3, the y-intercept is 25. Graph below:
Answer:
See below
Step-by-step explanation:
Given
10x + 6y = 150To graph the line easily, find x-intercept and y-intercept and connect those points with a line, that will be a graph you need.
x-intercept is the coordinate of x when y = 0
10x + 6*0 = 15010x = 150x = 15y-intercept is the coordinate of y when x = 0
10*0 + 6y = 1506y = 150y = 25We have now required points:
(0, 25) and (15, 0)The graph is attached
12. A company advertises on a website. A worker tracked the number of visits to the
website and the number of clicks on the advertisement. The table shows the data
for several days. A linear function can be used to model the data.
Website Advertisement
Number of Visits
to Website, X
Number of Clicks
on Advertisement, y
14
153
629
38
471
30
914
53
307
21
1,045
60
510
32
1,106
63
Based on the table, what is the best prediction of the number of clicks on the
advertisement if 1,500 people visit the website?
Answer:
The answer is 83
Step-by-step explanation:
It's a build up of a continental slope
Im in 8th grade and hope this helped
24) 30 people are running a 5k. How many different ways can the runners finish in 1st, 2nd, and
3rd place?
Answer:
90 different ways
Step-by-step explanation:
30 people can finish first, 30 people can finish 2nd, 30 people can finish 3rd. Ends up being 90 different outcomes.
Isabel wants to start saving more money so that she can purchase new clothes for college. She has $200 and will add $5 to her savings every day.
Which equation models Isabel's savings, where n represents each day?
Answer:
y = 5n + 200
Step-by-step explanation:
y = mx + b
$5 will be added every day, so 5 is the m and n is the x.
$200 is an extra cost that doesn't repeat, so it's the b.
What is MR? Explain.
Answer:
MR is 20 because if the side lengths that are shown are congruent, then the bottoms are too. so each part of the bottom that has a number, that number repeats on the part that's part of that triangle. so the bottom lengths go " 4 6 6 4" and you add those together and get 20
9 = 40 + 13
Helpppppp I need it due today
Its is equal to 9x6=53 Goodluck
i need the answer asap and if u can give me answer to more questions pls text me
g = 1
Get variable onto one side of equation and simplify:
3g - 8 = g - 6
2g = 2
g = 1
(7+ 1 4) + 6 = 7 ( ■ + 1 6)