Work Shown:
x = 108 is the raw score we want to transform
mu = 104 is the mean
sigma = 1.9 is the standard deviation
z = (x-mu)/sigma
z = (108-104)/1.9
z = 4/1.9
z = 2.10526315789473 which is approximate
z = 2.11 rounding to two decimal places
I'm rounding to two decimal places because many z tables will work with this level of precision.
I need help with this math question :(
Answer:
k = 5,
y = 5x
Step-by-step explanation:
If y is proportional to x,
y ∝ x
Then the equation will be
y = kx
Her k = proportionality constant.
Now we choose a point from the given table.
Let the point is (2, 10).
By putting the values of x and y in the equation,
10 = 2×k
k = [tex]\frac{10}{2}[/tex]
k = 5
This will be true for any point we choose from the table.
And the equation will be y = 5x
At a local pizza place, the cost of a large cheese pizza is $13.99. Each additional topping is $1.25. Use complete sentences to describe the dependent and independent variables in this situation
Answer:
The independent variable is the large cheese pizza because it doesn't need the toppings, the dependent variable is the additional toppings because they can't go anywhere without the large cheese pizza.
Step-by-step explanation:
30 people with eczema were studied to determine the cause of their eczema. The study determined that 15 of the people had a close family member who had also experienced
eczema similar to their own. Determine the fraction of people who have a family history of eczema. Write your answer as a reduced fraction.
Answer:
When simplified your answer is 1/2
Step-by-step explanation:
Their 30 people as a total
15 people have it through family so 15/30 then when simplify your divided both by 15 and get one half
if Mandy Rose the cube 1000 times about how many times can she expect to roll an even number
Answer: 500 times
Step-by-step explanation: There are the same amount of even numbers that there are odd numbers, so just 50% of 1000
Hope this helps :)
Each food item contributed to the local food bank is recorded as a positive number, while each food item donated to a family is recorded as a negative number. The food bank started with 508 items. How many items were on the shelves after the following contributions and donations?
-8, -29, +17, -12, -9
Answer:
467
Step-by-step explanation:
-8-29+17-12-9= -41
508-41= 467
A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains
80
%
pure antifreeze. The company wants to obtain
320
gallons of a mixture that contains
55
%
pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?
Answer:
let w = amt of water required
:
An equation based on the the percent water, an 80% solution is 20% water.
.20(320-w) + w = .50(320)
64 - .2w + w = 160
.8w = 160 - 64
w = 96%2F.8
w = 120 gal of water to produce 320 gal of 50% antifreeze
:
320 - 120 = 200 gal of 80% solution
Water: _120___ gallons
Premium Antifreeze: __200___ gallons
Step-by-step explanation:
A linear system is classified as inconsistent. Choose True or False for the statement about the graph of the system.The slopes of the lines are the same.
Answer: true
Step-by-step explanation:
A system of linear equations can be written as:
y = a*x + c
y = d*x + f
Now, the idea of this is find the point (x, y) where both linear equations meet.
Particularlly, if the slope in both equations is the same, we will have two options:
1) The lines are parallel, so they never met, and the system has no solution.
2) The lines are the same lines (this happens when c = f) and this means that we have infinite solutions.
So it is true, if the slopes are the same, the linear system is not consisten.
Write a word problem with dollars and cents that can be solved using subtraction. Include the solution.
Answer:
If Sarah has $300, and she buys a library card for $9.50 and is charged $3.50 per month. If she goes to the library for 9 months, how much does does she have left?
Step-by-step explanation:
$276
A point B(−4,4) is rotated 90° clockwise about the origin. FInd the coordinates after rotation.
Answer:
It would be positive(4,4)
Step-by-step explanation:
hope it helps
The graph of f(x)=(x-4)^2+k is shown below. identify the value of k.
K=?
Answer:
k = 1
Step-by-step explanation:
k is the value that will shift the graph up or down. In comparison with the parent function, this graph is 1 unit higher there for k is equal to 1.
Please mark me as brainliest is this helped you. Thank you!
What is the solution to the system of equations below? y = negative three-fourths x + 3 and y = –12
Answer:
10
Step-by-step explanation:
Given that A = (9,9,2), B = (1,3,5) and C = (5,6,4), find the vector equation of the line through A and B.
a.r=(8,6,-3)+t(9,9,2)
b.r=(9,9,2)+t(-8,-6,3)
c.r=(9,9,2)-t(-8,6,-3)
d.r=(9,9,2)-t(8,-6,3)
Answer:
It's not C
Step-by-step explanation:
Sorry bud I tried to help you out but i guessed wrong on my test, atleast its not C though:)
Answer:
The answer is B.r=(9,9,2)+t(-8,-6,3)
Step-by-step explanation:
Got it right on the quiz on Edge.
Stay Safe
Find the interest on $4,500 at 5.2% for 2 and a half years. Which of the following equations would be used to solve this problem?
Please help!
A: 4500 = P(0.052)(2.5)
B: I = (4500)(5.2)(2.5)
C: I = (4500)(0.052)(2.5)
D: I = (4500)(0.52)(2.5)
The equations used to solve this problem is I = (4500)(0.052)(2.5).
The correct option is (C).
What is Interest?Simple interest is a loan interest payment that borrowers pay to lenders. It is based solely on the principal and does not account for compounding interest. Straightforward interest is not limited to certain loans. It is also the form of interest that banks pay on savings accounts.
Given:
P = $4500
R= 5.2%
Time= 2 and half year
Using the formula of Simple Interest
= P x R x T / 100
= (4500 x 5.2 x 2.5)/ 100
= (4500 x 0.052 x 2.5)
= $585
So, the equation is: : I = (4500)(0.052)(2.5)
Learn more about Interest here:
https://brainly.com/question/30393144
#SPJ3
Select the best answer for the question.
15. What is the total of 49 1/4+3 3/8?
A. 4578
B. 52 1/2
C. 4518
D.5258
O Mark for review (Will be highlighted on
the review page)
So the right answer is 421/8
Look at the attached picture
Hope it will help you..
Answer:
[tex] \frac{421}{8} [/tex]
Step-by-step explanation:
[tex]49 \frac{1}{4} + 3 \frac{3}{8} \\ \frac{197 \times 2+ 27}{32} \\ \frac{394 + 27}{8} \\ = \frac{421}{8} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
WILL MARK BRAINLIEST
Answer:
Ok , why would you just ask the question "WILL MARK BRAINLIEST"?
can someone please help me with this
Answer:
Not Sure
Step-by-step explanation: I dont know the anwser but I can try to help, all I know is the the measure of angle EDF is supplementery to angle EDG so I hope that helps. In other words, 180-21x+5 = measure of angle EDF.
Which equation goes to the graph?
Are the following triangles congruent?
A) SAS
B) ASA
C) SSS
D) NOT
Can someone help me with this question? Thanks! :)
Answer:
76.3%
Step-by-step explanation:
Select the correct Answer from the drop-down menu
Consider the equation (x^m)^3 = (x^13)^5 x (x-8) ^-5
The value of m is ___
A. 15
B. 28
C. 35
D. 70
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Martin made 12 out of 40 shots during the basketball game. What percent of his shots did he make?
Answer:
30 percent
Step-by-step explanation:
12/40=0.3
0.3=30 percent
Answer:
30%
Step-by-step explanation:
To find a percent, use this equation:
x/100 = n/t
where x is the percent, n is the select number of things, and t is the total number of things
Substitute:
x/100 = n/t
x/100 = number of shots Marin made/number of shots attempted
x/100 = 12/40
Now, we need to cross multiply, or multiply the numerators by the denominators of the other fraction, and vice versa.
Multiply:
x/100 = 12/40
x(40) = 40x
100(12) = 1200
40x = 1200
Now, divide both sides of the equation to find the value of x.
Divide:
40x = 1200
/40 /40
x = 30
Now we have the percent is fraction form: 30/100
To make it a percentage, simply take the numerator and add the % sign.
Therefore, Martin made 30% of his shots.
Find the area of the parallelogram.
base is 7 cm
slant height is 9 cm
side is 12 cm
Answer:
The area is 63 cm
Step-by-step explanation:
Look at attachment:
Hope this helps! :)
help question is in attachment
Answer:
50
Step-by-step explanation:
90-40 = 50
Answer:
As the angles are complementary, their sum is 90
x + 40 = 90
x = 50
Jorge PAGO DE CONTADO $200 000 POR UN AUTOMÓVIL. SI ORIGINALMENTE COSTABA $250 000 ¿Qué PORCENTAJE DE DESCUENTO LE HICIERON ?
Answer:
20%
Step-by-step explanation:
$(200 000/ 250 000) = .8 = 80%, seguís pagando 80% entonces distes un descuento de 20% (100-80=20%)
what is the measurement of this angle
Answer:
28°
Step-by-step explanation:
62° + 90° = 152°
180° - 152° = 28°
Stay safe and have a wonderful day! Peace!✌
So the answer is 28 degree.
Look at the attached picture
Hope it will help you..
A movie theature offers two containers. One container is a traiangular prism with a base area of 12cm and 19 cm of height, for $6.75. The other is a rectangular prism with a base area of 8cm and a height of 15cm, for $6.25. Which container is the better value? Use 3.14 as an approximation for pie
Answer:
rectangular container
Step-by-step explanation:
Triangular prism area: A = 1/3 * base area * height
= 1/3 * 12 * 19
= 76 cm²
Rectangular prism: A = base area * height
= 8 * 15
= 120 cm²
The rectangular container has a better value because it has a bigger area and is cheaper.
Hope this helps!
Answer:
rectangular container
Rectangular container
Step-by-step explanation:
Whats the area of a square that is 9m and 9m?
Answer:
81 m².
Step-by-step explanation:
To find the area of a square, you will simply need to do the side-length squared, or [tex]A= l^{2}[/tex].
If the side-length is 9, we can do:
A = 9²
A = 81 m²
Step-by-step explanation:
Step 1: Find the area
An area of a square has a formula of → [tex]A= s^2[/tex]
[tex]A = 9 * 9[/tex]
[tex]A = 81[/tex]
Answer: [tex]Area=81m^2[/tex]
There are 15 boys and 13 girls in Mr. Garcia's class. What is the ratio of girls to boys?
Answer:
13:15
Step-by-step explanation:
Answer:
3/20
If there are 15 boys and 10 girls, then there are 25 students in total. The probability of choosing a girl immediately would be . There would then be one less girl and one less person, so the chance of choosing another girl would be . We multiply these to get .
hope this helps =)
The depth of a lake in Centerville changes over time due to rainfall and evaporation. A few months ago, the depth was 75 feet. Currently, the lake is 24% less deep. What is this year's depth?
Answer: 57 feet
Step-by-step explanation:
Multiply 75 by the remaining amount of water
75x.76 = 57
Answer:
57 feet
Step-by-step explanation:
100%=75 feet
24%=x
24 x 75=1800/100=18 feet
75
-18=57 feet
Solve by completing the square with working out please
x^2-7x-30=0
Answer:
x1 = -3 and x2 = 10
Step-by-step explanation:
hope this helps
Answer:
answer attached below
Step-by-step explanation: