Answer:
84.67
Step-by-step explanation:
Given that :
First test:
Mean (m) = 58
Standard deviation (s) = 6
A score of 66 on the first test :
Z score (standardized score) :
Z = (66 - 58) / 6
Zscore = 1.3333
Second test:
Mean (m) = 78
Standard deviation (s) = 5
Using the Zscore pertaining to 66 in the first test :
Z = (x - m) / s
1.3333 = (x - 78) / 5
1.3333 * 5 = x - 78
6.66667 = x - 78
x = 6.6667 + 78
x = 84.67
-17+1/2m=-29 please show work
Which of these is a property of acids?
A. They produce hydrogen gas when reacted with metals.
B. They feel slippery.
C. They turn litmus paper blue.
D. They taste bitter.
Answer:
D. They taste bitter. .
Answer:
A
Step-by-step explanation:
sour in taste
litmus into red not blue
Please help me, Ive been on this for almost half an hour ;(
which explicit formula describes the sequence −9, −3, 3, 9, 15, …?
Group of answer choices
an = 9n + 6
an = 6n + 15
an = 6n - 15
an = 9n – 6
Answer:
it's 9n + 6
Step by step :
-9 + 6 = -3
-3 +6 = 3
3 + 6 = 9
9 + 6 = 15
Please help! Reporting all irrelevant answers.. Thank you.
There are 500 houses in Jane's town. Last summer, 10% of the houses were for sale. How many houses were there for sale last summer?
Answer:
50
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
If you divide 500 and 10 you get 50 hope this helps
How do you do this? Using the figure below, solve for x.
THIS QUESTION IS WORTH 15 POINTS SO PLEASE HELP!!!!!!!!!
Answer:
x=15
Step-by-step explanation:
Substitute the values to check your answer...
(x²-11x)=60
(15²-11*15) =60.
Paul opened a bakery. The net value of the bakery (in thousands of dollars) ttt months after its creation is modeled by v(t)=2t^2-12t-14v(t)=2t 2 −12t−14v, left parenthesis, t, right parenthesis, equals, 2, t, squared, minus, 12, t, minus, 14 Paul wants to know what his bakery's lowest net value will be. 1) Rewrite the function in a different form (factored or vertex) where the answer appears as a number in the equation.
Given:
The net value of the bakery (in thousands of dollars) t months after its creation is modeled by
[tex]v(t)=2t^2-12t-14[/tex]
Paul wants to know what his bakery's lowest net value will be.
To find:
The function in a different form (factored or vertex) where the answer appears as a number in the equation.
Solution:
Factor form is used to find the x-intercepts and vertex form is used to find the extreme values (maximum or minimum). So, here we need to find the vertex form.
We have,
[tex]v(t)=2t^2-12t-14[/tex]
[tex]v(t)=2(t^2-6t)-14[/tex]
Adding and subtract square of half of 6 in the parenthesis, we get
[tex]v(t)=2(t^2-6t+3^2-3^2)-14[/tex]
[tex]v(t)=2(t^2-6t+3^2)+2(-9)-14[/tex]
[tex]v(t)=2(t-3)^2-18-14[/tex] [tex][\because (a-b)^2=a^2-2ab+b^2][/tex]
[tex]v(t)=2(t-3)^2-32[/tex]
Vertex form:
[tex]f(x)=a(x-h)^2+k[/tex]
where, (h,k) is vertex.
On comparing this equation with vertex form, we get the of the function is (3,-32).
Therefore, the vertex form is [tex]v(t)=2(t-3)^2-32[/tex] and the function has minimum value at (3,-32). It means, minimum net value of the bakery is -32 after 3 months.
Answer:
v(t) = 2(t - 3)^2 - 32. and -32
Please mark the other one Brainiest.
Hope that this helps!
Two-thirds of Mr. Edward's class takes the bus to
school. If 18 students take the bus to school, how many
total students are in Mr. Edward's class? Use the
8, where x = total number of students.
SOMEONE PLEASE HELP ME!!!!
Answer:
27 students
Step-by-step explanation:
you multiply by the reciprocal to get the total amount of students in the class
Pleaseeee helpp meeee
Solve for x: 8 ≥ 5 - 12x
Answer:
x ≥ -1/4
Step-by-step explanation:
8 -5 ≥ -12x
3 ≥ -12x
Divide both sides by negative 12 then flip the inequality sign.
x ≥ -1/4
-5x-y=12 solving for y
Answer:
good luck might be 8
Step-by-step explanation:
Answer:
y = -5x -12
Step-by-step explanation:
-5x - y = 12
=> -(5x + y) = 12
=> 5x + y = -12
=> y = -5x -12
Shelly crane us a realtor she is paid a 3 percent commission on every house she sales. Her sales for the month of march were 95,900.00 129,650.00 and 378,420.00 what is shelly commision in march
Answer: 18119.10
Step-by-step explanation:
Shelly's commision in March will be calculated as:
= (3% × 95,900) + (3% × 129,650) + (3% × 378,420)
= (0.03 × 95900) + (0.03 × 129650) + (0.03 × 378420)
= 2877 + 3889.5 + 11352.6
= 18119.10
Her commission will be 18119.10
The line plot shows the number of books read by 15 students over the summer. How many students read 3 or fewer books? A. 5 , B. 12, C. 10, or D. 3
Answer:
5
Step-by-step explanation:
If the plot is like this were the students are the dots and the number of books are the numbers so your answer would be 5 students
1 has 1 dot
2 has 2 dots
3 has 2 dots
4 has 3 dots
5 has 1 dot
6 has 2 dots
7 has 3 dots
8 has 1 dot
The number of students who reads 3 or fewer books is 10 students. Therefore, option C is the correct answer.
Given that, the line plot shows the number of books read by 15 students over the summer.
We need to find out how many students read 3 or fewer books.
What is the line plot?A Line plot can be defined as a graph that displays data as points or checks marks above a number line, showing the frequency of each value. Here, for instance, the line plot shows the number of ribbons of each length.
Now,
The line plot depicted shows, the number of books read by 15 students.
Books read Number of Students
0 0
1 1
2 2
3 2
4 3
5 1
6 2
7 3
8 1
9 0
Number of students who read more than 3 books
= 3 + 1 +2+3+1+0
= 10 students
The number of students who reads 3 or fewer books is 10 students. Therefore, option C is the correct answer.
To learn more about the line plot visit:
https://brainly.com/question/16321364.
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helpie pleasewill make brainlist
Please help me with this problem
Answer:
<EFG
Step-by-step explanation:
10 waffles and 4 pancakes cost $14. Five waffles and eight pancakes cost
$10. How much does a waffle cost? How much does a pancake cost?
9514 1404 393
Answer:
pancake: $0.50waffle: $1.20Step-by-step explanation:
You can model the bills using w and p for the price of a waffle and pancake, respectively.
10w + 4p = 14
5w +8p = 10
Subtract half the first equation from the second:
(5w +8p) -(1/2)(10w +4p) = (10) -(1/2)(14)
6p = 3 . . . . . . . simplify
p = 0.50 . . . . . divide by 6
10w + 4(0.50) = 14 . . . . substitute into the first equation
10w = 12 . . . . . . . . . . . . subtract 2
w = 1.20 . . . . . . . . . . . . .divide by 10
A waffle costs $1.20; a pancake costs $0.50.
Aimee has $10.00 to spend on school supplies. The following shows the price of each item in the school store. No sales tax is charged on these items.
Eraser: $0.89
Folder: $1.29
Notebook: $2.35
Pen: $0.70
For the following problems, determine if Aimee can buy the combination of items with her $10.00. Select Yes or No for each combination of items.
17) 5 folders and 5 pens?
A) Yes
B) No
Save
18) 6 pens and 6 erasers?
A) Yes
B) No
Save
19) 1 pen and 4 notebooks?
A) Yes
B) No
Save
20) 3 folders and 7 erasers?
A) Yes
B) No
Save
21) 4 folders and 2 notebooks?
A) Yes
B) No
Answer:
17. yes - 9.95
18. yes - 9.45
19. no - 10.01
20. no 10.01
21. yes 9.86
Preparing for Halloween, Alena sorted candies into 4 goodie bags. Each bag holds 8 candies. How many candies does Alena have? Use the Distributive Property and show your solution.
Answer:
32 candies
Step-by-step explanation:
Using the Distributive Property
1 bag = 8 candies
4 goodie bags = x
Cross Multiply
Let x be the number of candies
= 4(8)
= 4 × 8
= 32 candies
Answer if you can please
Answer:
x=8
Step-by-step explanation:
8x8=64 64-4=8
(the angles are the same for 8x=4 and 60)
A camera has a listed price of $826.95 before tax. If the sales tax rate is 8.75%, find the total cost of the camera with sales tax included.
Round your answer to the nearest cent, as necessary.
Answer:
899.30
Step-by-step explanation:
Please help this is urgent!! Will mark brainliest!
Answer:
C
Step-by-step explanation:
2·π·6·10+2·π·6^2
Answer:
602.88 in^2
Step-by-step explanation:
A=2πrh+2πr^2
A=2(3.14)(6)(10)+2(3.14)(6^2)
A=376.8+226.08
A=602.88
I need help with this please
Answer:
2/3 s
Step-by-step explanation:
bc im am very smart little girl
Answer:
i think its zk13
Step-by-step explanation:
please someonw help me with 7(a) please please please please please please please please please please please please please please please please
Answer: 2+1/x+3
Step-by-step explanation:
Find the distance between the two points.
✓ [?]
Enter the number that
goes beneath the
radical symbol.
Answer:
[tex]\mathrm{Distance\:between\:}\left(-2,\:3\right)\mathrm{\:and\:}\left(2,\:4\right)=\sqrt{17}[/tex]
Step-by-step explanation:
Given the points
(-2, 3)(2, 4)Finding the distance between the points (-2, 3) and (2, 4) is
[tex]\mathrm{The\:distance\:between\:}\left(-2,\:3\right)\mathrm{\:and\:}\left(2,\:4\right)\mathrm{\:is\:}[/tex]
[tex]=\sqrt{\left(2-\left(-2\right)\right)^2+\left(4-3\right)^2}[/tex]
[tex]=\sqrt{\left(2+2\right)^2+\left(4-3\right)^2}[/tex]
[tex]=\sqrt{4^2+1}[/tex]
[tex]=\sqrt{16+1}[/tex]
[tex]=\sqrt{17}[/tex]
Therefore, the distance between the points (-2, 3) and (2, 4):
[tex]\mathrm{Distance\:between\:}\left(-2,\:3\right)\mathrm{\:and\:}\left(2,\:4\right)=\sqrt{17}[/tex]
Which expression does NOT represent the product of 3 and 7?
A. 3⋅7
B. 3(7)
C. 37
D. 3×7
Answer:
C: 37
Step-by-step explanation:
37 isn't divisible by 3 or 7. 37/3=12 1/3, 37/7=5 2/7
All the others are different ways to write multiplication.
a-4=22 find the value of the variable
Answer:
answer is 26 i need to walk my fish now
Step-by-step explanation:
How to walk fish um u see go scuba diving in mariana trench then u find fish (hint) avoid kraken and megaladon or tell them corpse jr sent u. the put leash on fish boom u walked him (another hint) bring extra oxygen tanks u will run out then u die, to leave the kraken throws u out of water and to ur home.
- me
toodles
Mr. and Mrs. Suralbo earned a net taxable income of P568,986. Find the income tax due.
Answer:
$198,000
Step-by-step explanation:
Since Mr. and Mrs. Suralbo are married and filing jointly, they would fall into the tax slab of 35% as their taxable income ranges between $414,701 to $622,050.
Taxable income = $568,986
Tax rate = 35%
Income tax due = $568,000 * 35/100
= $198,000
Thus, the income tax due for Mr. and Mrs. Suralbo would be $198,000.
PLS HELPPPP!!!!! WILL GIVE BRAINLIST!!!!!!!!!!
Answer: C) y=-2+2
Step-by-step explanation: Rise over run says that the slope is -2 and the line hits the y axis at +2 so the equation would be y = -2 + 2.
what is the slope of у>- 2х + 3
Answer:
-2x
Step-by-step explanation:
Graph
y > −2x + 3
Use the slope-intercept form to find the slope and y-intercept.
The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
y = mx + b
Find the values of m and b using the form y = mx + b. m = −2
b = 3
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: −2
intercept: (0, 3)
Graph a dashed line, then shade the area above the boundary line since y is greater than
−2x + 3.
y > −2x + 3
HELP PLEASE, WILL MARK BRAINLIEST
Find the values of the domain for which the function below is undefined.
y=x^2-16/x+4
A) {4}
B) {-4}
C) {±4}
The values of the domain for which the function below is undefined is {-4}
Undefined functionThe value of the domain where is a function is undefined is the point where the denominator is zero
Equate the denominator to zero
x + 4 = 0
Subtract 4 from both sides
x + 4 -4 = 0 - 4
x = - 4
Hence the values of the domain for which the function below is undefined is {-4}
Learn more on undefined function here: https://brainly.com/question/12039003
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First Right Answer Wins Brainliest :D
Answer:
D) 5 1/6 < 5 13/30 < 5 68/90
Step-by-step explanation:
The best way to determine which value is greater is to find the decimal form of each fraction.
5 1/6 = 5.16...
5 13/30 = 5.43...
5 68/90 = 5.75...