Answer:
The rock has a volume of 26
Step-by-step explanation:
499 - 473 = 26
The rock displaced the water by its volumes
A certain department store keeps track of an age and an annual income of customers who have its credit card. From a sample of 820 of such customers the following descriptive statistics had been obtained: the average age was 41 years with the standard deviation of 16 years and the average annual income was $37,290 with the standard deviation of $2,850. The correlation between the age the annual income was found to be 0.34. Answer the following questions. (Round your answers to 2 places after the decimal point).
Calculate the value of a slope.
a) 309.23 $ per year of age
b) 60.56 $ per year of age
c) 192.43$ per year of age
d) None of the above
Answer: b) $60.56 per year of age
Step-by-step explanation: If the scatterplot of two variables shows a line and the correlation between them is strong, we can calculate a regression line.
Regression line is a line graph that best fits the data. Like any other line, its formula is given by
y = mx + b
with
m being the slope
b the y-intercept
The slope of the line, correlation and standard deviations of the two variables have the following relationship:
[tex]m=r\frac{S_{y}}{S_{x}}[/tex]
where
r is correlation
[tex]S_{y}[/tex] is standard deviation for the y data
[tex]S_{x}[/tex] is standard deviation for the x data
For our problem:
r = 0.34
[tex]S_{y}=[/tex] 2850
[tex]S_{x}=[/tex] 16
Calculating
[tex]m=0.34(\frac{2850}{16})[/tex]
m = 60.56
Slope for the regression line of annual income per year of age is 60.56.
an exterminator charge $80 to visit a home and $35 to spray each room. Of the total bill was $394, how many rooms were sprayed?
Answer:
The answer is $8.97 per room
Step-by-step explanation:
394-80=314
314 divided by 35=
$8.97
Select ALL the statements that are true.
a
The radius of a circle is two times larger than the diameter.
b
The diameter of a circle is two times larger than the radius.
c
The diameter is half the radius of a circle.
d
The radius is half the diameter of a circle.
Answer:
a b d are true statement ..............
help plz I don't know the answer plz really answer it
Answer:
She needs to run 1/2 mile on Saturday.
Step-by-step explanation:
Hope this helps!!
10. Walter makes a cable payment of $84 each month. Which table
represents the relationship between m, the number of months,
and c, the amount he has paid for cable for that length of time?
To make meatloaf. mix 2 pounds of beef and 0.5 of a cup of breadcrumbs. How many pounds of beef
would you mix with 4.5 cups of breadcrumbs
Answer:
18 pounds of beef.
Step-by-step explanation:
For every 0.5 cups of breadcrumbs there's 2 pounds of beef.
0.5 x 9 = 4.5
9 x 2 = 18 or 2 x 9 = 18
multiples of two: 2 4 6 8 10 12 14 16 18
This shows that when we multiply 2 nine times we get 18!
Mr. Robles has two kinds of fruit in his basket. The ratio of
apples to oranges in the basket is 3:4.
If there are 9 apples, how many pieces of fruit are in his basket?
A. 21
B. 8
C. 38
D. 12
A. 21
I just took my exam and got it right.
i have to do a number graph using fractions I dont know how
Answer:
What kind of graph?
Based on historical data, your team knows what proportion of the company's number of orders come from Indiana residents. However, your team would like to expand its orders beyond the state of Indiana. By the end of this year, you think you would like your total proportion of orders from Indiana to be between 0.66 and 0.73. If you took a simple random sample of 99 current orders, what is the probability that the sample proportion of sales to Indiana residents is between 0.66 and 0.73
This question is incomplete, the complete question is;
Based on historical data, your team knows what proportion of the company's number of orders come from Indiana residents. However, your team would like to expand its orders beyond the state of Indiana. By the end of this year, you think you would like your total proportion of orders from Indiana to be between 0.66 and 0.73. If you took a simple random sample of 99 current orders, what is the probability that the sample proportion of sales to Indiana residents is between 0.66 and 0.73
Note: You should carefully round any intermediate calculations to 4 decimal places to match wamap's approach and calculations. After you round to 4 places, use THAT rounded value in later steps. You may need an appropriate population proportion (which you actually found in a previous problem).
Some data:
Total population: 2327
Indiana residents: 1845
Other: 482
Frequency table results for Total Sales:
Count = 2327
Total Sales Frequency
0 to 200 1960
200 to 400 303
400 to 600 53
600 to 800 9
800 to 1000 2
Answer:
The probability that the sample proportion of sales to Indiana residents is between 0.66 and 0.73 is 0.0612
Step-by-step explanation:
Given the data in the question;
p" = Indiana residents / Total population
p" = 1845 / 2327
p" = 0.7929
Now, the probability that the sample proportion of sales to Indiana residents is between 0.66 and 0.73 will be;
P( 0.66 < p < 0.73 ) = P{ [x1 - p" / √( p"(1-p")/n )] < p < [x2 - p" / √( p"(1-p")/n )] }
we substitute
= P{ [0.66 - 0.7929 / √( 0.7929(1-0.7929)/99 )] < p < [0.73 - 0.7929 / √( 0.7929(1-0.7929)/99 )] }
= P{ [-0.1329 / 0.0407] < p < [-0.0629 / 0.0407] }
= P{ -3.2654 < z < -1.5455 }
= ⊕( -1.5455) - ⊕(-3.2654)
from the standard normal table;
= 0.0618 - 0.0006
P( 0.66 < p < 0.73 ) = 0.0612
Therefore, the probability that the sample proportion of sales to Indiana residents is between 0.66 and 0.73 is 0.0612
Which of these graphs represents the inequality x <10
Answer:
There are no graphs, but the graph should look lyke this:
An open circle on the point "10"
And from the 10, the arrow should be going left, towards the negatives, or smaller numbers than the ten
What is the y intercept of the graph
A. -2
B. 2
C. -4
D. 4
Answer:
option C = -4
Step-by-step explanation:
Because the line is in the y-axis of -4
Option C) -4
REASON:the line is on the Y axis of -4
Use the Distributive Property to determine which of the following statements is equivalent to 5(2a – 3b).
7a – 8b
10a – 15b
5ab
10a – 3b
Answer:
Step-by-step explanation:
10a-15b
Jollys scores for the first 3 quarters of the school year were 82, 94, and 88. ahe wants to get an average of 90 for this year. What must her 4th quarter score be?
Answer:
96
Step-by-step explanation:
You add the scores, add 96, divide by 4 and you get 90.
In a class of pupils, 11 play the flute and piano.
10 play the flute only.
5 play the piano only.
3 play neither instrument.
How many pupils are in the class?
Answer:
The answer is 29
Step-by-step explanation:
11+10+5+3=29
sorta need answer asap
Решите уравнение: а) 6x = 18;
б) –3x = 15; в) 7x = -63;
г) 5x - 3 = 12; д) — 4х + 1 = 13; е) -x+ 9 = 16.
Answer:
6x=18
x=18/6
x=3.
-3x=15
x=15/-3
x=-5
7x=-63
x=-63/7
x=-9
5x-3=12
5x=12+3
5x=15
x=15/5
x=3
-4x+1=13
-4x=13-1
-4x=12
x=12/-4
x=-3
-x+9=16
-x=16-9
-x=7
x=7/-1
x=-7
In JKL, J = 7.9 inches, K = 2 inches and L =9.8 inches. Find the measure of K to the nearest degree
Answer:
4
Step-by-step explanation:
Delta math
The measure of K to the nearest degree is 4°.
What is the laws of cosines?The law of cosines, commonly referred to as the cosine rule or the cosine formula, in trigonometry essentially connects the length of the triangle to the cosines of one of its angles. It claims that we can determine the length of the third side of a triangle if we know the length of the first two sides and the angle between them.
Given ΔJKL,
j = 7.9 inches, k = 2 inches, l = 9.8 inches
to find the measure of angle K,
we can calculate the angle by cosine law,
cosK = (j² + l² - k²)/(2.j.l)
cosK = (7.9² + 9.8² - 2²)/(2*7.9*9.8)
cosK = 154.45/154.81
K = cos⁻¹(0.99748)
K = 4.067⁰ ≈ 4°
Hence angle K is 4°.
Learn more about the laws of cosines;
https://brainly.com/question/17289163
#SPJ1
Which statements are true? Check all that apply.
-EH is parallel to FG.
-EF is perpendicular to EH.
-HG is neither parallel nor perpendicular to FG.
-Quadrilateral EFGH is a rectangle because it is a
parallelogram with four right angles.
-Quadrilateral EFGH is a trapezoid because it has
exactly one pair of parallel opposite sides.
THE ANSWER IS THE 2ND ND 3RD ONE
Answer:
D- Did you already answer it at the bottom?
Also, in order for someone to answer this, we would need an image showing the different line-thingys. (I forget what they are called)
Step-by-step explanation:
Answer:
B, C
Step-by-step explanation:Just did it on edg
Leon constructed a point P that divides the directed segment from A to B in the ratio 2 to 1. Chelsea
constructed a point that divides the directed segment from B to A In the ratio 1 to 2. How are points P
and Q related? Explain.
Points P and Q are (select) whpoint P is (select) vl of the distance from A to B.Point Q is
(select) of the distance from B to A. The means the points lie (select) location along the line
segment.
Answer:
The answer is below
Step-by-step explanation:
Leon constructed a point P that divides the directed segment from A to B in the ratio 2 to 1. Chelsea constructed a point Q that divides the directed segment from B to A in the ratio 1 to 2. How are points P and Q related? Explain.
Points P and Q are...
A.) two units apart. B.) the same point. C.) one unit apart.
Point P is ___ of the distance from A to B. [ A.) 2/3 B.) 1/2. C.) 1/3. ]
Point Q is of the distance from B to A. [ A.)1/3 B.). 1/2 C.)2/3. ]
The means the points lielocation along the line segment.
[ A.) At the same B.)At a different
Solution:
Since point P is divides the segment from A to B in the ratio 2 to 1 therefore:
P = 2/3 of the distance from A to B.
Since point Q is divides the segment from B to A in the ratio 1 to 2, therefore:
Q = 1/3 of the distance from B to A
2/3 of the distance from A to B = 1/3 of the distance from B to A
Therefore point P and point Q lie along the same line segment from A to B (or B to A) and the points P and Q are at the same point,
Can anyone help me with problems 18-22?
Answer:
18.2/3
19.m^2/3
20.1/c
21.3x/2
22.2r/3
Step-by-step explanation:
A company claims that their new bottle holds 25% more laundry soap. If their original container held 42 fluid ounces of soap, how much does the new container hold?
The new container holds ___ fluid ounces.
HELP PLEASE. <3.
Answer:
52,5
It holds 10.5 more laundry soap
Anna worked out at a gym for 2 hours.
Her workout included stretching for 21
minutes, jogging for 45 minutes, and
lifting weights for the remaining amount
of time. What percentage of Anna's
workout was spent lifting weights?
Answer:
! not sure if correct !
Step-by-step explanation:
54% of anna's workout was lifting weight
Answer:
45%
Step-by-step explanation:
21+45=66=1 hour 6 mins
2 hours=120 min
120-66=54
(54/120)x100=45 45%
triple u, then raise the result to the 5th power
Answer:
243u⁵
Step-by-step explanation:
you need to put it in brackets then expand
(3u)⁵ = 243u⁵
Answer:
243u^5.
Step-by-step explanation:
Triple u = 3u.
Taking to power 5
= (3u)^5
= 243u^5.
2- Mert 423 sayfalık kitabın 7
_
9
sini okumuş. Oku-madığı kac sofa kalmıştır?
Can you Graph the image A(4,-1) after a translation 7 units up?
PLS HELP I TRIED GETTNIG BETTER PHOTOS THIS TIME
Answer:
ADD MORE POINTS THEN WE CAN TALK HUN
Step-by-step explanation:
Answer: )*39082[938[928
what is the complement of 3/8?
what is 99 time 6
[tex]99 \times 6[/tex]
Answer:
594
Step-by-step explanation:
A boa is 3 meters long. A python is 197 centimeters long. Which snake is longer? + O boa O python How much longer cm
Answer:
the boa is longer by 103 cm
Step-by-step explanation:
3 m = 300 cm
300 - 197 = 103
Answer:
the boa...
Step-by-step explanation:
convert meters to centimeters then compare the numbers.
Determine the domain and the range of the graph.
Answer:
Domain: (-∞,∞)
Range: -1
Step-by-step explanation:
Domain means the x-coordinates covered:
(-∞,∞)
Range means the y-coordinates covered:
Only -1 because there are no other existing y-coordinates.