Answer:
29
Step by step explanation.
You add them together then you minus the 8 then you get 29 .
What is the square root of 81
Answer:
9
Step-by-step explanation:
81 to find the square root of 81 you got to find 2 numbers that multiply to get to 81
Ralph hit 20 balls in the batting cage last week
This week he hit 15 balls
What is the percentage decrease
Answer:
Step-by-step explanation:
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $50,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Given the information in the Microsoft Excel Online file below, construct a spreadsheet to determine how large a sample should be taken for each desired margin of error.
Answer:
A. 384.16
B. 2,401
C. 9,604
D. No
Step-by-step explanation:
Calculation to determine how large a sample should be taken for each desired margin of error
First step is to find σ which represent Population Standard deviation
σ=($50,000-$30,000)/4
σ=$20,000/4
σ = 5,000
Now let calculate how large a sample should be taken for each desired margin of error
Using this formula
n = (Za/2*σ/E)^2
Where,
Za/2=1-0.95/2
Za/2=0.05/2
Za/2=0.025
Z-score 0.025=1.96
Za/2=1.96
σ =5,000
E represent Desired margin of error
Let plug in the formula
a. $500
n = (1.96* 5,000/$500)^2
n=(9,800/$500)^2
n=(19.6)^2
n = 384.16
b. $200
n = (1.96*5,000/200)^2
n=(9,800/$200)^2
n=(49)^2
n = 2,401
c. $100
n = (1.96*5,000/$100)^2
n=(9,800/$100)^2
n=(98)^2
n = 9,604
Therefore how large a sample should be taken for each desired margin of error will be :
A. $500= 384.16
B. $200= 2,401
C. $100= 9,604
d.NO, Based on the information calculation i would NOT recommend trying to obtain the $100 margin of error reason been that it is highly costly compare to $500 margin of error and $200 margin of error.
Help please!! Math problem
Answer:
What are the options?
Step-by-step explanation:
Possible solutions shown of the graph: (0,5) or (4,0)
The width of the rectangle is 20% of its length. What is the area of the rectangle?
it's 60 ft btw
Answer:it is 60
Step-by-step explanation:
Find the solution set of the inequality.
5<−5+|3a|
Answer:
5 < -5 + |3a|
<=> 10 < |3a|
<=> 3a > 10 or 3a < -10
<=> a > 10/3 or a < -10/3
Subtract -13xy from -5xy so
-5xy -(-13xy)=?
Answer:
8xy
Step-by-step explanation:
Subtract -13xy from -5xy
-5xy - (-13xy) =
-5xy + 13xy =
8xy
good luck, i hope this helps:)
2x + 8y=30 y=2 solve for x
Answer:
23
Step-by-step explanation:
2x+ 8(2)= 30
2x+ 16=30
2x=14
x=7
helpppppppppppppppppppppppppppp
Hi the answer should be 4
x + 15 = 28
O A. x= 13
O B. x = 33
O C. x = 43
O D. x = 23
Answer:
A
Step-by-step explanation:
the answer is
x+15=28
x=28-15
x= 13
Answer:
A
Step-by-step explanation:
x+15=28
move 15 to the other side
and change the + to -
x=28-15
x=13
Find the angle between the diagonal of a cube of side length 15 and the diagonal of one of its faces, so that the two diagonals have a common vertex. The angle should be measured in radians. (Hint: we may assume that the cube is in the first octant, the origin is one of its vertices, and both diagonals start at the origin.)
Answer:
the angle between the diagonal is 0.6155 RADIANS
Step-by-step explanation:
Given the data in the question
as illustrated in the image below;
O is [0,0,0]
B is [15,0,15]
E is [15,15,15]
Now to find angle BOE
vector OB = [15,0,15]
vector OE = [15,15,15]
OB.OE = [15,0,15].[15,15,15] = 15 × 15 + 15 × 15 = 450 = |OB||OE|cos[angleBOE]
|OB| = √(15² + 15²) = √(225 + 225) = √450
|OE| = √(15² + 15² + 15²) = √(225 + 225 + 225) = √675
so
Angle BOE = cos⁻¹ ( 450 / ( √450 × √675 )
Angle BOE = cos⁻¹ ( 0.81649 )
Angle BOE = 35.265°
Angle BOE = 0.6155 RADIANS
Therefore, the angle between the diagonal is 0.6155 RADIANS
Which figure shows a line segment?
K
D
Step-by-step explanation:
Option c shows line segment because it has no arrow marks
9+3+x-y; use x=6, and y=2
Answer:
If x=6 & y=2 then 9+3+x-y wil be
9+3+6-2
=12+6-3
=18-3
=15
Answer:
Given, x=6 and y=2
so the expression we have 9+3+x-y will become,
9+3+6-2 !
and by adding 9 & 3 we will get,
=12+6-3
Now adding 12 & 6 we get,
=18-3
now by subtracting 3 from 18 we get,
=15
Which situation about Sam's money could be described using the sum of -2.5 and -10?
A. Sam owes his dad $12.50
B. Sam earned $12.50
C. Sam owes his dad $7.50
D. Sam earned $7.50
Answer
C. Sam owes his dad $7.50
Step-by-step explanation:
because none are correct but tat is te closetes one
convert 131 57’ 32” to decimal degree
Answer:
131.95888888888888
Step-by-step explanation:
Your Welcome :)
How can you rewrite a^7 using exponent rules?
HI i need help i will give brainliest to correct answer
Answer:
Slope m=2, y-intercept b=5 --> y=2x+5
Slope m=3, y-intercept b=5 --> y=3x+5
Slope m=5, y-intercept b=4 --> y=5x+4
Step-by-step explanation:
The slope number goes with x, and the y-intercept gets either added or subtracted from the end of the equation depending on weather it's positive or negative. (subtracted if it's negative and added if it's positive)
Simplify by dividing (-3/8) -5/9
Answer:
[tex]\frac{-27}{40}[/tex]
Step-by-step explanation:
[tex](\frac{-3}{8})[/tex]÷[tex]\frac{5}{9}[/tex]
[tex]\frac{-3}{8}[/tex]×[tex]\frac{9}{5}[/tex]
[tex]\frac{-27}{40}[/tex]
hey i need help!!!!!!
Answer:2.10%
Step-by-step explanation:
2 is the whole number with 1/10 being also = to 10/100s
(3x^3+2x^2-3x+4)divided by (x+2)
Answer:
3x^3+2x^2-3x+4/x+2
Step-by-step explanation:
find the value of x
a. 5
b. 11
c. 7
d. 3
choose the inequality that represents the following graph
Answer:
its a
Step-by-step explanation:
did it on khan 2021
The box plots represent the birth weights, in pounds, of babies born full term at a hospital during one week.
Complete the statements to compare the weights of female babies with the weights of male babies.
The median female birth weight is
the median male birth weight.
The range of female birth weight is
the range of male birth weight.
Which birth weight measure is the same for both genders?
Answer:
less than , less than, minimum
Step-by-step explanation:
got it right
Answer:
Complete the statements to compare the weights of female babies with the weights of male babies.
The median female birth weight is
less thanthe median male birth weight.
The range of female birth weight is
less thanthe range of male birth weight.
Which birth weight measure is the same for both genders?
minimumStep-by-step explanation:
Edge 2022
please help PLEASE HELP!!!!!!!!!!!!!!! I AM SUPER DESPARATE I NEED MUCH MUCH MUCH HELP
Answer:
8.v = r 2 πh 3
Step-by-step explanation:
The diagram shows a right-angled triangle.
15 cm
hcm
31
What is the value of h?
Give your answer correct to 1 decimal place.
The diagram is missing, so i have attached it.
Answer:
h = 7.7 cm
Step-by-step explanation:
From the attached image, we can see that the hypotenuse is 15 cm with the opposite side being h cm.
The angle is 31°
Thus, using trigonometric ratio, we have;
h/15 = sin 31
h = 15 sin 31
h = 15 × 0.5150
h = 7.725
Approximating to 1 decimal place gives;
h = 7.7 cm
What is the domain of the function
Answer:
it will be the first one
Step-by-step explanation:
Brainliest if you answer the question and 30 points
Answer:
-2.2, -1 7/10, 1.7, 3 1/4
Answer:
-2.2, -1 7/10, 1.7, 3 1/4
Step-by-step explanation:
you drive a car 45 miles at spd r (mph). on return trip, spd is 3/4 r. the round trip took 1 hr 45 min. find avg speed
Answer:
the agv speed is 223
Step-by-step explanation:
Answer:
51.42 avg mph
Step-by-step explanation:
45+45 = 90 miles total for 1 3/4 hours
90/.75 = 51.42 avg mph
In ΔRST, r = 3 cm, s = 8.6 cm and ∠T=105°. Find the length of t, to the nearest 10th of a centimeter.
Answer:9.8
Step-by-step explanation:
I give up on deltamath
2.5d + 7.25 = 1 + 3.75d solve for d
Answer:
5
Step-by-step explanation:
Subtract 1 from both sides. The equation becomes 2.5d + 6.25 = 3.75d
Subtract 2.5d from both sides. The equation becomes 6.25 = 1.25d
Divide 1.25 from both sides. You get 5 = d