Answer:
91.92%
Step-by-step explanation:
Given that:
Mean (μ) = 6.2, standard deviation (σ) = 1.5
Z score is a measure in statistics to determine the relationship of a measured value with the mean. It is given by the equation:
[tex]z=\frac{x-\mu}{\sigma}[/tex]
To calculate the probability that a patient has a blood test result less than or equal to 8.3, we need to calculate the z score of 8.3
For x = 8.3, the z score is:
[tex]z=\frac{x-\mu}{\sigma}=\frac{8.3-6.2}{1.5} =1.4[/tex]
From the probability distribution table:
P( x ≤ 8.3) = P(z < 1.4) = 0.9192 = 91.92%
Roger likes to eat Crunchy Flakes cereal for breakfast every morning. Crunchy Flakes comes in a 20-ounce box that costs $4.20 and a 30-ounce box that costs $6.00. Which is the better buy? (HINT: Find which one is less per ounce)
A. 20-ounce box
B. 30-ounce box
C. they both are the same per ounce
Answer:
B
Step-by-step explanation:
Divide $4.20 by 20 ounces and $6 by 30 ounces. You would get 0.21 and 0.2. So, B is the cheaper and better buy.
If Catherine traveled 1,800 miles in 6 hours on her plane flight to her vacation destination, how fast was the plane traveling?
Answer:
So the plane drobe 1800 miles in 6 hours.
to find the time to plane was traveling per hour, we divide 1800 by 6 geting us with 300. THe plane traveled 300 miles per hour
Step-by-step explanation:
Answer:
300 mph
Step-by-step explanation:
[tex]Speed \: of \: plane \\ = \frac{distance}{time} \\ = \frac{1800}{6} \\ = 300 \: mph[/tex]
Thus plane was travelling at 300 miles per hour speed.
What is the area of the rhombus? Please help!
Answer:
Step-by-step explanation:
1200
Solve the following system of equations using any method you want.
10y+24=-3x
3x-9=y
Answer:
3
Step-by-step explanation:
3x-9=y
+9. +9
3x=9y
divide three to both sides answer
What is the volume of the following rectangular prism? 9/5 2/3
Answer:
the answer is 1 1/5
Step-by-step explanation:
what i did was 9/5 times 2/3 which got me 1 1/5
Hope this helpshope this is right ask questionshave a nice dayWhich is a solution to 2x + 1 = 21?
Answer:
x = 10 is your answer
- Explain -
Step 1: subtract 1 from both sides (subtraction of equality)
which will give us:
2x = 21 - 1
which equals to
2x = 20
Step 2: Divide both sides by 2
which is
2x/2 = 20/2
2/2 = 1 and 20/2 = 10
Therefore the answer is x = 10
A sports stadium holds 14,600 people. There are eight home games in
a season. Find the total number of people who could attend home
games in one season.
Answer:
116800
Step-by-step explanation:
14600x8
166800
Answer:
b
Step-by-step explanation:
hope this helps you
Select the correct answer. What are you required to do when you buy in bulk to save money? A. purchase a minimum number of items B. purchase a large quantity of an item C. commit to buy more in the future
Answer:
B
Step-by-step explanation:
Answer:A
Step-by-step explanation:You should always atleast buy something for your earnings
show work please. need asap.
Answer:
129 = QRX
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
49+80 = QRX
129 = QRX
Answer:
129°
Step-by-step explanation:
Exterior angle = sum of interior angles
Angle QRX = 49 + 80
= 129°
Help please help me I need this
Answer:
[tex]\frac{5+-\sqrt{53} }{2}[/tex]
Step-by-step explanation:
in the equation given these are the values:
a=1 b= -5 c= -7
if we plug this in the quadratic formula [tex]\frac{-(-5)+-\sqrt{(-5)^2-4(1)(-7)} }{2(1)}[/tex]
this is simplified to [tex]\frac{5+-\sqrt{53} }{2}[/tex]
hope this helped
44 is equal to 8 times a number minus 4. what is the number?
Answer:
6
Step-by-step explanation:
Let "a number" = x
44 = 8x - 4
Simplify. Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First add 4 to both sides:
44 (+4) = 8x - 4 (+4)
44 + 4 = 8x
48 = 8x
Isolate the variable, x. Divide 8 from both sides:
(48)/8 = (8x)/8
x = 48/8
x = 6
6 is your answer.
~
Answer:The number is 6.
Step-by-step explanation:
8n - 4 =44
+4 +4
8n =48
n=6
You and two of your friends go to eat pizza together. There are two deals: 10% off of 1 pizza 30% off of 3 pizzas Do you want to each pay separately and get 10% off of your bill or do you want to split the bill 3 ways and get 30% off of 3 pizzas? Write a paragraph that convinces your teacher which one is the better deal. Show all of the math involved in your calculations.
Please help :(
Answer:
The first one is the better deal.
Step-by-step explanation:
The first one is the better deal =====
30% of 3 = 0.9
0.9 = 90
10% of 1 = 0.1
0.1 = 10
So the better deal would be 10% of 1
Which represents the inverse of the function f(x)=4x?
Answer:
[tex]h(x) = \frac{1}{4}x[/tex]
Step-by-step explanation:
Suppose h is the inverse of f then
f(x) = y ⇔ h(y) = x
f(x) = y ⇔ 4x = y ⇔ x = y/4
and since x = h(y) then h(y) = y/4
then we can write :
[tex]h(x) = \frac{x}{4}[/tex]
______________________
:)
Which of the following equation have exactly one solution?
A) 58x + 52 = -78x - 78
B) 58x + 52 = 78x - 78
C) -78x + 52 = -52x - 78
D) 52x + 52 = 52x -78
Answer:
A, B, C all have one solution.
Step-by-step explanation:
1) Each equation in this question has one variable (x). This means that only one solution will be there.
2) Solve for x, you can cross out option D. When you subtract 52x from both sides, you're left with 52 = -78
Which is not true
3) Option A, if solved x = -65/68
4) Option B, x = 13/2
5) Option C, x = 5
All except D, have one solution, I don't know if it's a multiple choice answer but this is how I can help.
Answer:
The answer is A, B, and C.
Step-by-step explanation:
I got this answer on Khan Academy.
Hope this helps! :)
Which graph best represents the function f(x) = 4(1.5)x? graph of increasing exponential function going through point 0, 2 graph of increasing exponential function going through point 0, 3 graph of increasing exponential function going through point 0, 1 graph of increasing exponential function going through point 0, 4
Answer:
Last one:
graph of increasing exponential function going through point 0, 4
Step-by-step explanation:
y = 4(1.5^x)
Is an exponential function with:
y-intercept: 4×1.5⁰ = 4×1 = 4
Horizontal asymptote: y = 0
Answer:
the last one
Step-by-step explanation:
What is the median of the data in this stem-and-leaf plot?
a 21
b 22
c 23
d 24
Answer:
23
Step-by-step explanation:
The median is the middle number
There are 10 number so the median is between 5 and 6
Take the 5 and 6th terms and average them
(22+24)/2 = 23
Answer
23 (Answer c is correct)hope this helps
brainliest appreciated
good luck! have a nice day!
What is distance between point X and point Y?
--------------------------------------------------------------------
StartRoot 11 EndRoot
StartRoot 22 EndRoot
StartRoot 61 EndRoot
StartRoot 72 EndRoot
Answer:
....
Step-by-step explanation:
using pythagoras :
[tex] \sqrt{ {6}^{2} + {5}^{2} } = \sqrt{61} [/tex]
Answer:
C. [tex]\sqrt{61}[/tex]
Step-by-step explanation:
The answer is [tex]\sqrt{61}[/tex]
A woman earns $10 per hour at her job. The boss gives her a 30% raise. What is her new salary per hour?
$3
$ 10.50
$13
$40
None of these
10×30% = 3
30÷3= 10
10 + 3 =13
new salary per hour is $13
Sheila has 13 1/2 pounds of potato salad. She wants to divide the potato salad into containers, each of which holds 1 1 /4 pounds. How many containers does she need?
Answer:
This means Sheila will need at least 9 containers (you need to round up to the next container).
Step-by-step explanation:
Answer:
Sheila will need at least 9 containers
hope it right
Help me with this Please
Three ballet dancers are positioned on stage. Mia is straight behind Jane and
directly left of Christine. If Jane and Mia are 3 meters apart, and Christine and Jane
are 5 meters apart, what is the distance between Mia and Christine?
Answer:3 m
Step-by-step explanation:
Given
Mia is 3 m behind Jane
Mia is left to the Christine
Distance between Mia and Christine is 5 m
Thus they form a right angles triangle shown in fig
So we can write
[tex]5^2=x^2+3^2[/tex]
Where x =distance between Mia and christine
[tex]x^2=25-16[/tex]
[tex]x^2=9[/tex]
[tex]x=3\ m[/tex]
What is the volume of the composite figure?
Answer:
Make headway with these volume of a composite 3D figure worksheet pdfs featuring figures made up of 2 or 3 solid shapes. Add the volume of each geometric ...
Step-by-step explanation:
Which of the following is an example of inertia?
O A. Adding mass to a moving car makes it
harder to stop.
0 0 0
OB. A balanced force is applied to a bicycle.
C. Increasing the velocity of a train makes it
harder to stop.
OD. A moving car changes direction.
Answer:
B
Step-by-step explanation:
inertia is the tendency to do nothing or remain unchanged
Can someone please tell me what is -1/9(-27) please
Solve the system of equations algebraically.
5x - 3y = 6
6x - 4y = 2
A.many solutions
B.(8, 14)
C.no solution
D.(9,13)
Step-by-step explanation:
It is a unique solution
5x-3y=6)*3
3x-2y=1)*5
15x-9y=18
15x-10y=5
-
________
y=13
x=9
Option D
the ordered pairs below show the number of gallons of gas used, x, and the number of miles traveled, y, for a compact car.
(7,224),(8,264),(9,279),(10,350)
if the data is modeled with the linear best fit function, approximately how many gallons of gas will be used by the car when it travels 400 miles?
a. 10.3
b. 11.6
c. 12.8
d. 14.3
Answer:
a,b,c,d
Step-by-step explanation:
a,b,c,d
Answer:10.3
Step-by-step explanation:
Part A. The tee shirts for the fundraiser will cost $10 to make and there is a $25 delivery fee to have the shirts delivered. 1) Write an expression to represent the student government’s total cost of ordering “t” amount of tee shirts. please helpppppp
Answer:
x=10t+25
Step-by-step explanation:
The delivery fee is 25 dollars and each shirt is 10 dollars
If you are given a 4% raise and inflation is 1%, you are___
a making 4% more
b making 3% more
c making 3% less
d making 4% less
Answer:
I would say b
Step-by-step explanation:
If you are given 4% and inflation is 1% then you are making 3% More
Please hurry algebra 2
Answer:
the answer should be the second option idk for sure sorry if wrong.
Step-by-step explanation:
Answer:
The answer is the last one/ = 0.61
Step-by-step explanation:
What value of a makes the equation true
Answer:
The correct answer is -2.
Step-by-step explanation:
it is -2 because if you replaced -2 with a you would have -2 minus 1.5 which is -0.5. -0.5 multiplied by 3 gets you -1.5.
Answer:
Step-by-step explanation:
3(a + 1.5) = -1.5
3a + 3*1.5 = -1.5
3a + 4.5 = -1.5
Subtract 4.5 from both sides
3a + 4.5 - 4.5 = -1.5 - 4.5
3a +0 = - 6.0
3a = - 6
Divide both sides by 3
3a/3 = -6/3
a = -2
Which expression is equivalent to (90?
Of(5) g(5)
f(5) + g(5)
5f(5)
59(5)
the answer is 5f(5)
Trust me just work it out and you will get the same
