Answers
Answer:
10. D
9. A
8. B
Step-by-step explanation:
Related Questions
A. Use the formula to verify that turkey sandwiches and 9-grain wheat are
independent events. Show your work or explain how you found your
answer.
Answers
Answer:
Proved
Step-by-step explanation:
See attachment for the given parameters.
Required
Prove that turkey sandwiches and 9-grain wheat are independent events
From the attachment, we have:
[tex]P(T) = 23.6\%[/tex]
[tex]P(W) = 51.7\%[/tex]
The intersection between both is:
[tex]W\ and\ T = 36[/tex]
So:
[tex]P(W\ and\ T) = \frac{36}{300}[/tex]
[tex]P(W\ and\ T) = 0.12[/tex]
[tex]P(W\ and\ T) = 12\%[/tex]
For both events to be independent, the following must be true.
[tex]P(W\ and\ T) = P(W) * P(T)[/tex]
[tex]P(W\ and\ T) = 23.6\% * 51.7\%[/tex]
[tex]P(W\ and\ T) = 12.2\%[/tex]
The calculated values of P(W and T) are estimates
[tex]12.2\% \approx 12\%[/tex]
Hence, both events are independent
Select the correct answer. Which matrix represents this system of equations? -2y + 7z = 10 9x + 5y = 1 2x + z = -5
Answers
Answer:
In matrix form this can be represented as
[tex]\left[\begin{array}{ccc}0&-2&7\\0&5&0\\2&0&1\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}x\\y\\z\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}10\\1\\5\end{array}\right][/tex]
Step-by-step explanation:
The given equations are
-2y + 7z = 10
9x + 5y = 1
2x + z = -5
Which can be written as
0x+-2y + 7z = 10
9x + 5y+0z = 1
2x +0y+ z = -5
In matrix form this can be represented as
[tex]\left[\begin{array}{ccc}0&-2&7\\0&5&0\\2&0&1\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}x\\y\\z\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}10\\1\\5\end{array}\right][/tex]
When we multiply the above matrices we get the given set of equations.
In multiplying the matrices we check the no of columns of the first matrix and the number of rows of the second matrix. If they are equal ( as in this case they are 3) then the matrices can be multiplied .
The answer has the number of rows equal to the number of rows of the first matrix and the number of columns equal to the number of columns of the second matrix which is true in this case.
Help please, if you don’t know don’t say anything✨
Answers
hope this helps
please help with my geometry
Answers
Can someone please help me with math.
Answers
Answer:
c is your answer
Step-by-step explanation:
hope this helps :)
Answer:
the answer is 3 i think i hope this helps
Step-by-step explanation:
:)
If this is a representative sample of the entire 450-student 7th grade, then how many students would have birthdays in February?
Answers
Answer:
[tex](a)\ Total = 75[/tex]
[tex](b)\ Students = 100[/tex]
Step-by-step explanation:
Given
See attachment for complete question
Solving (a); Number of students represented.
To do this, we simply calculate the length of each bar and then sum them up.
So, we have:
[tex]Jan = 16[/tex]
[tex]Feb = 10[/tex]
[tex]Mar = 18[/tex]
[tex]Apr = 15[/tex]
[tex]May = 5[/tex]
[tex]Jun = 11[/tex]
So, the total is;
[tex]Total = Jan + Feb + Mar + Apr + May + Jun[/tex]
[tex]Total = 16 + 10 + 18 + 15 + 5 +11[/tex]
[tex]Total = 75[/tex]
Solving (b): Prediction of February students out of a total of 750.
To do this, we use:
[tex]Students = \frac{Month}{Total} * 750[/tex]
For February, we have:
[tex]Students = \frac{Feb}{Total} * 750[/tex]
[tex]Students = \frac{10}{75} * 750[/tex]
[tex]Students = \frac{10 * 750}{75}[/tex]
[tex]Students = \frac{7500}{75}[/tex]
[tex]Students = 100[/tex]
Answer:
this answer is incorrect
Whoever does this correctly get brainliest
Answers
Answer:
5/6^7
Step-by-step explanation:
Answer:
Step-by-step explanation:
(5/6)^7
Here (5/6) appears 7 times as a multiplicand.
Given figure is a solid made up of a cone and a hemisphere.
The total height of ther figure is 20 cm and the slant height of
the cone is V218 cm. If the centimeter measure of the radius
of the base is a multiple of 7, find the volume of the solid
figure.
Answers
Answer:
5514.67 cm³
Step-by-step explanation:
The computation of the volume of the solid figure is shown below
Given that
The total height is 20 cm
The slant height is 218 cm
radius of the base is 7 cm
the height of the hemisphere would be equivalent to the radius i.e. 7 cm
the height of the cone is
= 20 cm - 7 cm
= 13 cm
Now the volume of the cone is
= πrl
= 3.14 × 7 × 218
= 4796 cm^3
The volume of the hemisphere is
= 2 ÷3 πr^3
= 2 ÷ 3 × 3.14 × 7^3
= 718.67 cm3
Now the volume of the solid figure is
The volume of solid= volume of cone + volume of the hemisphere
= 4796 + 718.67
= 5514.67 cm³
Which equation shows 2x + 6y = 6 converted to slope-intercept form?
a. y = –3x + 1
b. y = 3x + 1
c. y = -1/3x + 1
d. y = 1/3x + 1
Answers
Answer:
C - y = -1/3x+1
Step-by-step explanation:
Start by moving everything but the y over to the other side, getting 6y = -2x + 6. Next, just divide everything by 6, and your answer should be y = -1/3x + 1
Hopefully this helps- let me know if you have any questions!
The requried slope-intercept form of the given equation is y = -1/3x + 1. Option C is correct.
What is the intercept in the equation?In the equation intercept is the value of the linear function where either of the variables is zero.
Here,
To convert the equation 2x + 6y = 6 to slope-intercept form (y = mx + b), we need to isolate y on one side of the equation.
We can start by subtracting 2x from both sides of the equation:
2x + 6y - 2x = 6 - 2x
Simplifying this expression gives:
6y = -2x + 6
To isolate y, we can divide both sides of the equation by 6:
6y/6 = (-2x + 6)/6
Simplifying this expression gives:
y = (-1/3)x + 1
Therefore, the answer is (c) y = -1/3x + 1.
Learn more about slopes here:
https://brainly.com/question/3605446
#SPJ7
How many cubes with side lengths of 1/4 cm doe sit take to fill the prism?
2 1/4 cm length
3/4 cm width
1 1/4 Height
Answers
Write an equation to represent the measures of the angles
Answers
Answer:
x = 72
Step-by-step explanation:
These angles are complementary so they add up to 90:
x + 18 = 90
x = 90 - 18
x = 72
What is the value of 8
Answers
64 is A value of 8 but 8 is just 8
Step-by-step explanation:
what does 1-1-1-1-1-1-1-1-1-1-1-1-2-2-2-2-2-2-2-2-2-2-2-2-2-3-3-3-3-3-3-3-3-3-3-3-3-3-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-10-10-10-10-10-1000?
Answers
•ω• Hewo fren!
☆☆●◉✿Answer:✿◉●☆☆
-1807
☆☆●◉✿Step-by-step explanation:✿◉●☆☆
(Did the subtraction on paper-) geez this is a huge question- owo
HOPE I HELPED! ∧∧
→⇒brainliest please? ∑(OΔO )♥♥︎Answer:
-1807
you good
Step-by-step explanation:
Can someone please just tell me if I did this right? It’s the volume of a cone.
Answers
Answer:
If your asking for the equation: V=1/3*h*π*r²
Step-by-step explanation:
* = multiplication sign
h = height
r = radius
plz help me plzzzzzzzzzz
Answers
Answer:
I think the answer is 7;
Step-by-step explanation:
All i did was subtract Q11 from all 4 of its sides;
11=4=7
Your total for dinner was $18.50. If you want to leave a 20% tip, how much will your grand total be?
Answers
Answer:
$3.70 honestly just divide lol
i need help no ilnks please and thank you
Answers
What goes on the green box
Answers
4 goes in the big gray box
3 goes in the small gray box
bottles of sparkling water usually cost $1.69 each. this week they're on sale for 4 for $5 . You bought one last week and one this week. Did you pay more or less for the bottle this week? How much more or less?
Answers
Generally, they are $1.69 apiece, and this week they are 4 for 5$
This means that this week, they are $1.25 apiece, meaning you spend less, by about $0.44
This weeks is cheaper by 44 cents
Answer:
You paid less for the bottle this week We paid $0.44 less this week.Step-by-step explanation:
How to Solve
Given: Cost of 1 sparkling bottle last week = $1.69
This week's cost of 4 bottles is $5.
To find: The cost of 1 bottle.
For finding how much we pay less this week, we have to subtract the cost of 1 sparkling bottle this week from the cost of 1 sparkling bottle last week.
Calculate the simple interest on R4 400 at 4% per annum for 7 years.
Answers
Step-by-step explanation:
4400×4×7/100 = 1232 as per formula simple interest = p×r×t/100
100 points - Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match the terms to their descriptions
median
interquartile range
mode
mean
The value that appears most often
in a data set
The middle value when all the values
are in order from least to greatest.
The value calculated by adding all
the values in a data set and dividing
the sum by the number of values.
Answers
Answer:
median
The middle value when all the values are in order from least to greatestinterquartile range
Not given (the difference of IQR1 and IQR3)mode
The value that appears most often in a data setmean
The value calculated by adding all the values in a data set and dividing the sum by the number of valuesMean
The value calculated by adding allthe values in a data set and dividingthe sum by the number of values.Median
The middle value when all the valuesare in order from least to greatest.mode
The value that appears most often in a data setInterquartile range
Not present in optionsGeneral formula is IQR3-IQR1
Work out length AB
D
Answers
Answer:
23.41
Step-by-step explanation:
AB is gotten using the pythagoras theorem
AB² = AC² + BC²
AB² = 22² + 8²
AB² = 484 + 64
AB² = 548
AB = √548
AB = 23.41
Hence the length of AB is 23.41
The cost of a school banquet is $95 plus $15 for each person attending .write an equation that gives total cost as a function of the number of people attending.what is the cost for 77 people
Answers
Identify the variables
m is for how many people is attending to the school banquet.
x is for the cost for each person attending
b is for the cost of a school banquet
m = 77, x = 15, b = 95
Now plug in the variables
y = 77(15) + 95
Solve:
77 (15) = 1155
1155 + 95 = 1250
Your answer is $1250.
(I hope this is correct)
For the function f(x)=x^2+3, what is the value of f(-4)
Please hurry :(
Answers
Answer:
f(-4) = -(-4) - 5
f(-4) = -1
Step-by-step explanation:
Answer:
f(- 4) = 19
Step-by-step explanation:
To evaluate f(- 4) substitute x = - 4 into f(x) , that is
f(- 4) = (- 4)² + 3 = 16 + 3 = 19
Please help me with this its pretty easy but I'm du.mb
Answers
Which set of ratios below is equivalent to 4:5?
A. 8 to 10, 8/10
B. 8 to 10, 16/20
C. 15/20,20:25
D. 40/50,24:36
Answers
is y^2=4x-7 a linear
Answers
Answer: it's a linear equation
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Which graphs represent functions?
A.d only
B. A only
C. B and d
D. C and d
Answers
Answer:
The answer is C.
Step-by-step explanation:
Graphs B and D show functions, and A and C don't.
Help! Approximately what portion of the circle is shaded blue ? A.3/4 B.1/2 C.5/9
Answers
Answer:
A
Step-by-step explanation:
On Tuesday, Mario does Taco Tuesday where tacos are 5 for $7.00. If the regular price is $2.00 what is the per taco savings on taco Tuesday ? a.$1 b.$80 cents c$1.20 d.60 cents
Answers
Answer:
d. 60 cents
Step-by-step explanation:
7 divided by 5 is 1.4
2 - 1.4 = .60
Explanation: