Answer: C
Step-by-step explanation:
Since the heights of the men are assumed to be normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = heights of the men.
µ = mean height
σ = standard deviation
From the information given,
µ = 70.7 inches
σ = 2.1 inches
The probability that they have a mean height greater than 71.7 inches is expressed as
P(x > 71.7) = 1 - P(x ≤ 71.7)
For x = 71.7
Since n = 36, then
z = (71.7 - 70.7)/2.1/√36 = 2.86
Looking at the normal distribution table, the probability corresponding to the z score is 0.998
P(x > 71.7) = 1 - 0.998 = 0.002
The price to mail a letter at the post office is $0.35 for the first ounce and $0.17 for each additional ounce. Amrit paid $2.05 to mail his letter. How much did the letter weigh?
what is the slope and the point based on the equation: (y-2) = 5(x - 4)
Answer:
Slope = 5
Point = (4, 2)
Step-by-step explanation:
Slope: 5
Step-by-step explanation:
This is called point slope form. y-y1=m(x-x1)
If m is slope then your slope is 5
Use the figure to select another name for ∠9 . Select all that apply.
Answer:
SRM, MRS
Step-by-step explanation:
Isabelle has $5.45 in her purse. If she has five more nickels than dimes, and twice as many quarters than dimes, how many of each type of coin does she have?
Answer:
Nickel = 13
Dimes = 8
Quarters = 16
Step-by-step explanation:
Let N denote Nickel,
Let D denote dime
Let Q denote quarter
Now, from online conversions;
1 nickel = 5 cents
Also, 1 dime = 10 cents
Also, 1 quarter = 25 cents
Isabelle has $5.45 which is also 545 cents.
Thus, we have;
5N + 10D + 25Q = 545 - - - (eq 1)
We are told that;
she has five more nickels than dimes, and twice as many quarters than dimes.
Thus;
N = D + 5
Also, Q = 2D
Plugging them for N and Q in eq 1 givens;
5(D +5) + 10D + 25(2D) = 545
5D + 25 + 10D + 50D = 545
25 + 65D = 545
65D = 545 - 25
65D = 520
D = 520/65
D = 8
Thus; N = D + 5 = 8 + 5 = 13
Q = 2D = 2 × 8 = 16
I don’t know what the answer is, help plz
Answer:
[tex]10x^{2}[/tex] + 20x + 50
Step-by-step explanation:
[tex]a^{2} + b^{2} = c^{2} \\(x+7)^{2} + (3x+1)^{2} = 10x^{2} + 20x + 50[/tex]
in a class of 32 students the mean height of the 14 boys is 1.56 meters and the mean height of all 32 students is 1.151 meters. work out the mean height of girls
Answer: Hence, Mean height of the girls is: 1.48
Step-by-step explanation: It is given that:
in a class of 32 students .
the mean height of 14 boys is 1.56 and the mean height of all 32 students is 1.515.
Since there are 14 boys in a class.
So, number of girls is equal to (32-14)=18.
The mean height of 14 boys is 1.56.
Hence the sum of height of 14 boys is= 1.56×14=21.84
Similarly mean height of 32 students is 1.515.
Hence, sum of height of 32 students=1.515×32=48.48.
Let x denote the mean height of 18 girls.
Hence, sum of height of 18 girls is: 18 x.
Now,
18x+21.84=48.48
( since sum of height of girls and boys is equal to the sum of height of all the students)
so, 18x=48.48-21.84
18 x=26.64
Hence, x=1.48
Hence, Mean height of the girls is: 1.48
Need help ASAP ILL LOVE U FOREVER
There is 1 teacher for evėry 18 students on a school trip. How many teachers are there if 72 students go on the school trip? Move values to create a proportion that can be used to solve the problem. Il 18 36 1 6
Answer:
4
Step-by-step explanation:
divide 18 by 72
Quick I need to finish this in 5 minutes****only fractions
~.❤~Please Answer~❤.~
Answer:
a,b
Step-by-step explanation:
Carpet costs $21.95 per square yard and the padding to put under it costs $2.55 per square yard. Felix plans to install padding and carpet in the region shown in the figure. What is the total cost of the carpet and padding needed to exactly cover the room?
Answer:
735
Step-by-step explanation:
Given the table, how can you use a graph to find additional equivalent ratios? x y 2 3 4 6 Plot the ordered pairs (2, 3) and (4, 6). Start at (4, 6). Move right 3 and up 2, and then plot a point. Keep this same rate to get other points. Draw a line through the two given points. Any point below the line represents an equivalent ratio. Plot the ordered pairs (2, 4) and (3, 6). Start at (3, 6). Move right 2 and up 3, and then plot a point. Keep this same rate to get other points. Draw a line through the two given points. Any point on the line represents an equivalent ratio. PLSSSS I´LL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!!!!!!!!!!!!!!!!!!!!! IM TIMED!!!!
Answer:
i think its A cs its the most reasonable one
Step-by-step explanation:
sorry if its wrong
If julie makes 18 baskets, how many baskets does Kari make? How many baskets do they make in all?
Answer:
I don't know what you are asking
Step-by-step explanation:
find the value of x in the triangle below
Answer:
x=109
Step-by-step explanation:
The angles inside of a triangle all add up to 180 degrees. So:
23+48+x=180
Simplify Like-Terms:
71+x=180
Subtract 71 from both sides:
x=109
The volume of a spherical ball is 4500rr cubic centimeters. Find the radius of the ball.
Answer:
its is6700rr centimeters
Step-by-step explanation:
7. If JKL ~ NMP, find the x
help me! also show work so i won’t ask again
Answer:
x = 3Step-by-step explanation:
Based on similar triangle;
14/49 = x+5/9x+1
Cross multiply
49(x+5) = 14(9x+1)
49x + 245 = 126x + 14
49x - 126x = 14 - 245
-77x = -231
x = -231/-77
x = 3
Hence the value of x is 3
Ricky just received a shipment of 600 CDs for his music store each CD cost $20 which of the following could be used to find the total amount you will pay for the CDs
Answer:
y = 20x
Step-by-step explanation:
y is the total amount that ricky will pay for the CDs.
x is the number of CDs that ricky bought.
so, in this case, if you replace the x by 600 :
y=20 x 600, witch means that the value of y is :
y = 12000 dollars.
What is the volume of the rectangular prism?
Help please
Answer:
Step-by-step explanation:
you got this i believe in you!
Find the value of x in the isosceles triangle shown below.
please help owo
Answer:
10
Step-by-step explanation:
We will first take a right triangle and we will apply the pythagorean theorem to it. First, the base of the right triangle will be 12/2 which is 6; then, we will just use the theorem.
a^2+b^2 = c^2 (pythagorean theorem)
8^2+6^2 = c^2
100 = c^2
c = 10 because the square root of 100 is 10
Which inequality represents the following number line?
+
-10-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Select one:
a. x < -6
b.X > -6
C.XS-6
d. x > -6
Answer:
b. x > -6
Step-by-step explanation:
> [greater than], and < [less than] inequalities are not filled in because the value is not included, but is only greater or less than.
≥ [greater than or equal to], and ≤ [less than or equal to] inequalities are filled in because the value is included, and it is greater than or less than.
Given that there is an empty circle with an arrow moving in the positive direction from -6, the inequality must be a greater than, and since the value is -6, x > -6.
PLEASE HELP I NEED A GENIUS TO ANSWER THIS!!
89 Step-by-step explanation: 12+-3 = 6
Answer: 5,120
Step-by-step explanation:
Your equation is:
v(t) = 320 • 4^t
You are trying to find v(2) so:
t = 2
Plug in 2 for t:
v(2) = 320 • 4²
Solve:
v(2) = 5,120 views
Hope this helps! :)
Mya and ERIC WORK IN A BAKERY . MYA HAS 3 TIMEA AS MUCH FLOUR AS ERIC .MYA HAS 15.81LB OF FLOUR .USE THE EQUATION 3F = 15.81 TO FIND HOW MUCH FLOUR ERIC HAS .
Answer:
5.27 lb
Step-by-step explanation:
Given that,
Mya has 3 times as much floor as Eric. Mya has 15.81 lb of floor. The relation is given by :
Let Eric has F floor.
3F = 15.81 ...(1)
We need to find how much flour Eric has.
Dividing both sides by 15.81.
F = 15.81/3
F = 5.27 lb
Hence, Eric has 5.27 lb of flour.
If annie has 8 apples and eren has 927 ore apples then annie, how much apples does eren have?
Answer:
935 apples
Step-by-step explanation:
927 plus 8 equal 935
The answer is 935
because remove the 92 from 927 you have 8+7
so the equals 15 then add 1 to the 2 and then you have 3 then you have the remaining 5 where you leave in the ones place then you have 935
Which of the following is not an expression? A. 5x + 6, B. 2b = 0, C. -10.6, D. 2/3t - 1/8
Answer:
C is the answer
A baseball player got 102 hits in the last 300 times at bat. what percent of the time at bat did the player get a hit
Answer:
the answer is like 35 percent
Answer:
im pretty sure its 34% jgbfjdjdbdhdjc
The regular price of a jacket is $48.00. What is the sale price of the jacket if it is marked 25% off
Answer:
$36 for the jacket
planes X and Y are perpendicular. Points A,E,F and G are points only in plane X. Points R and S are points in both planes X and Y. Lines EA and FG are parallel.
Based on this information, which pair of lines, together, could be perpendicular to RS? Select two options.
EA
ER
EF
FG
FS
Answer:
FG
Step-by-step explanation:
I did this on my computer
The pair of the line together, could be perpendicular to RS should be considered as the EA and FG.
What is perpendicular?In terms of elementary geometry, two geometric objects should be considered as the perpendicular when they intersect at a right angle. A line is treated to be perpendicular to another line in the case when the two lines intersect at a right angle.
Therefore, The pair of the line together, could be perpendicular to RS should be considered as the EA and FG.
Learn more about pair here: https://brainly.com/question/4845674
4/7w = 16 hurry please
Answer:
4
7
w
=
16
Multiply both sides of the equation by
7
4
.
7
4
⋅
4
7
⋅
w
=
7
4
⋅
16
Simplify
7
4
⋅
4
7
⋅
w
.
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
4/7w = 16
Multiply both sides by 7/4 to get the variable isolated
w=28
Two square rooms have total floor area of 89cm².One room is 3m longer each way than the other,Find the dimension of the two rooms
Answer:
5 m
8 m
Step-by-step explanation:
Area of square = s² ; s = side length
Let the area of each room equal to x and y
x + y = 89cm²
If x = smaller room
y = x + 3 in dimension
Hence,
x² + (x + 3)² = 89
(x +3)(x +3) = x² + 3x + 3x + 9
x² + x² + 3x + 3x + 9 = 89
2x² + 6x + 9 = 89
2x² + 6x - 80 = 0
x² + 3x - 40 = 0
x² + 8x - 5x - 40 = 0
x(x + 8) - 5(x + 8) = 0
x + 8 = 0 ;
x - 5 = 0
x = - 8 or x = 5
Dimension can't be negative :
So, x = 5
Samller square = x = 5
Larger square = x + 3 = 5 + 3 = 8
please help me please will give brainliest to anyone who is right
Answer:
C
Step-by-step explanation:
you have a total of 18 data values which means you have to find the average of the 9th and 10th values; these values would be in the 3000 - 5999 because this interval contains data values 5 through 10