Answers
Answer:
Last option is the correct answer.
Step-by-step explanation:
Matrix multiplication is only valid if the number of columns of the first matrix are equal to the number of rows of the second matrix;
Here, in the last option, first matrix has one column and second matrix has one row so this matrix multiplication is possible.
Related Questions
Find the product of 122.1 and 1/100. Explain what happens to the decimal point of the original number when you multiply it by? *
Answers
Answer: 1.221
Step-by-step explanation: The decimal goes up by 2 places.
Answer:
The decimal goes up by 2 places
Step-by-step explanation:
Solve the math problem. Make sure your answer has the correct number of significant figures.
10.9 - 8.264
Answers
Answer:
2.636
Step-by-step explanation:
10.900-08.264
2.636
10.9
- 8.264
2.636
Initial Knowledge Check
Question 3
Christine publishes a blog on bird-watching, with field notes and pictures of her trips around the country. Recently she decided to conduct a poll among 600 of
her subscribers, and found that 71% of those polled have liked at least one of her blogs, they have posted an average of 1.8 comments per blog, and 128 have
liked all of her blogs. Later she found out that her website already has this information for all of her subscribers. According to her website, she has a total of
12,683 subscribers, of whom 68% have liked at least one of her blogs, they have posted an average of 1.5 comments per blog, and 3781 have liked all of her
blogs.
(a) For Christine's blog poll, identify the population and the sample.
Population:
(Choose one)
Sample: (Choose one)
(b) Choose whether each number described below is a parameter or a statistic for Christine's blog poll.
Number
The average of 1.8 comments per blog that the 600 subscribers polled have posted
The 3781 subscribers among all the subscribers to Christine's blog who like all of her blogs
The 68% of all the subscribers to Christine's blog who like at least one blog?
Answers
a) The sample and the population are given as follows:
Sample: 600 subscribers.Population: Total of 12683 subscribers.b) The numbers are classified as follows:
The average of 1.8 comments per blog that the 600 subscribers polled have posted: statistic.The 3781 subscribers among all the subscribers to Christine's blog who like all of her blogs: parameter.The 68% of all the subscribers to Christine's blog who like at least one blog: parameter.What is population and sample?Population: Collection or set of individuals or objects or events whose properties will be studied.
Sample: The sample is a subset of the population, and a well chosen sample, that is, a representative sample will contain most of the information about the population parameter. A representative sample means that all groups of the population are inserted into the sample.
How to classify an information as a parameter or a statistic?If the information is taken from a sample, it is called a statistic.If the information is taken from a population, it is called a parameter.More can be learned about population and sample at https://brainly.com/question/7301139
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Use the following information collected in a town of fast food restaurants. 13 served hamburgers, 8 served roast beef sandwiches, 10 served pizza, 5 served hamburgers and roast beef sandwiches 3 served hamburgers and pizza, 2 served roast beef sandwiches and pizza, 1 served hamburgers, roast beef sandwiches and pizza, 5 served none of the three foods
a) Construct a Venn Diagram and put the correct numbers in the Venn diagram.
b) Find the Probabilities. P(pizza)= ___________
c) P (roast beef and pizza)=___________
d) P ( hamburgers, but not roast beef) =______________
e) P (only hamburgers) = ____________
Answers
Answer:
I don't know what are you saying bro
I’ll give brainliest! Please help
Answers
Answer:
65
Step-by-step explanation:
The lines are parallell so m1 = m5, and m3=m8. 180-115 is 65
Oh PLEASE HELP ME I'LL GIVE YOU THE Brainliest JUST PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
day 4: 16000
day 5: 32000
day 6: 64000
day 7: 128000
day 8: 256000
day 9: 512000
day 10: 1024000
Step-by-step explanation:
just fill in the day number as x and solve the equation.
I attached a sketch of the graph. My paper isn't big enough to draw in all points, but you should get the idea on how to draw this. On the y axis, you use the number of people infected, on the x axis, the number of days.
Then you draw in each point, just as the exercise is asking for.
Then you also can read on the graph how many people are infected on day 6 and a half and day 11. You read this by checking what y value there is approximately for x = 6.5 and x = 11.
(hint: should be about 90500 for 6.5 days and 2048000 for 11 days)
For a particular clothing store, a marketing firm finds that 16% of $10-off coupons delivered by mail are redeemed. Suppose six customers are randomly selected and are mailed $10-off coupons. What is the expected number of coupons that will be redeemed?
Answers
The expected number of coupons that will be redeemed is 0.96.
Given data:
To find the expected number of coupons that will be redeemed, multiply the probability of redemption for a single coupon by the number of coupons distributed.
Given that 16% of $10-off coupons delivered by mail are redeemed, the probability of redemption for a single coupon is 0.16.
Since six customers are randomly selected and mailed coupons, the number of coupons distributed is 6.
Therefore, the expected number of coupons that will be redeemed is:
Expected number of redeemed coupons = Probability of redemption * Number of coupons distributed
= 0.16 * 6
= 0.96
Hence, the expected number of coupons is 0.96.
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David has available 240 yards of fencing and wishes to enclose a rectangular area.
(a) Express the area A of the rectangle as a function of the width W of the rectangle.
(b) For what value of W is the area largest?
(c) What is the maximum area?
Answers
Answer:
Below in bold.
Step-by-step explanation:
Perimeter = 2*width + 2*length
So
240 = 2w + 2l
120 = w + l
l = 120 - w
(a) Area = w*l
Substituting for l:
A = w(120 - w)
A = 120w - w^2
(b)
Finding the derivative:
A = 120w - w^2
A' = 120 - 2w
For a maximum area A' = 0, so:
120 - 2w = 0
2w = 120
w = 60 yards for maximum area.
(c)
Maximum area
= 120*60 - 60^2
= 3600 yd^2.
I need the answer to the problem
Answers
Solve equation
176 =-4(4 + 6m)
Answers
to solve for m
distribute into parentheses
176 = -16 - 24m
get m on one side
176 + 16 = -24m
192 = -24m
divide by -24
-8 = m
m = -8
When ordering the Kids' Lunch at Burger Universe, the customer must choose a size, a type of bun, a side order, and a type of fruit drink. Here are the possibilities for each choice. Choice Possibilities Size: junior, Small, Medium, Large Type of bun Plain bun, Sesame seed bun Side order Fries, Onion rings Fruit drink Orange, Grape, Cherry, Lemonade How many Kids' Lunches are possible?
Answers
The number of Kid's Launches that are possible is 128. This is solved using Combination Principle.
What is combination in Math?A combination in mathematics is a selection of elements from a set with distinct members, where the order of selection is irrelevant.
Hence,
The number of possible "Sizes" from the specified 4 sizes are ⁴C₁
The number of sorts of bun that is possible from the specified two bun types is: ²C₁
From the four sides, the number of possible side purchases is: ⁴C₁
Of the available four drinks, the number of the possible drinks is: ⁴C₁
Now the possible number of all lunches are:
⁴C₁ x ²C₁ x ⁴C₁ x ⁴C₁
= 4 x 2 x 4 x 4
= 128
Hence the number of Kid's Lunches that are possible are 128.
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16) Solve for side AB.
AB-
Round your answer to the nearest hundredth.
A) 5.45
B) 6.45
C) 7.45
Answers
Answer:
AB= 7.45
Anwer C)
Step-by-step explanation:
Cos (angle) = Nearest side / Huypothenuse
Cos(20) = 7 / AB
Cos(20) * AB = (7 /AB) * AB
Cos (20) * AB = 7
(Cos(20) *AB) / Cos(20) = 7 / Cos(20)
AB = 7 / cos(20)
AB= 7.45
In order to find the hypotenuse, we can use the trigonometric function “cosine”,
since.
Cosine =
Adjacent side (which is 7) / hypotenuse
Cos(50) = 7 / AB
AB = 7 / Cos(50)
AB = 10.89006678802289
AB ≈ 10.89
Have a good day ^^
this is the whole thing.
Answers
Answer:
Can you attach it? i will do it if you attach it
Step-by-step explanation:
(Please help. Will be marked brainliest) Clifford is making a really big white cake for his sister’s birthday. The recipe calls for 1.5 times as much flour as sugar. It also calls for
1
2 as much butter as sugar. All the butter, flour, and sugar together total 7.5 cups. How much butter, sugar and flour does Clifford need?
Answers
After solving the equation, Clifford need 3.75 cups of flour, 2.5 cups of sugar and 1.25 cups of butter to make the cake.
What is an equation?Equation, also referred to as a declaration of equality between two expressions that contain variable- and/or number-based components. Since equations are essentially questions, the development of mathematics has been driven by efforts to systematically find answers to those questions.
There are many different types of equations that vary in complexity, ranging from simple algebraic equations that only call for addition or multiplication to differential equations, exponential equations that employ exponential expressions, and integral equations. They serve as an expression for many physics laws.
Let flour be f, sugar be s, and butter be b
We have given that
f = 1.5s ...1
b = 1/2(s)
= 0.5s ...2
And
F + B + S = 7.5 cups
Lets substitute the vales of f and b in F + B + S, and we get
1.5s + 0.5s + S = 7.5 cups
2S + S = 7.5
3S = 7.5
S = 7.5/3
S = 2.5 cups
Flour = (1.5)2.5
= 3.75 cups
Butter = (0.5)2.5
= 1.25 cups
Thus, Clifford need 3.75 cups of flour, 2.5 cups of sugar and 1.25 cups of butter to make the cake.
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Is this statement true or false? x = 4 is a solution to x – 5 >20
A true
B false
Answers
Answer:
B False
I had the same question and got it right
Linda is adding padding to all of the surfaces inside her attic for extra warmth in the winter.
Answers
We have that Linda's net and expression incorrect
With the Expression of the surface area of attic
45 (40 + 25 + 25) + 1/2 (40 x 15)
Hence, Surface area is,
X = 4050 + 600
X = 4650 feet²
Hence, The answer is No, Because Her expression for the triangles are incorrect;
1/2(40 x 15)
Instead of,
1/2 x 40 x 15
Hence, Linda's net and expression incorrect,
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Complete question is,Linda is adding padding to all of the surfaces inside her attic for extra warmth in the winter.
She needs to find the approximate surface area of the attic, including the walls, floor, and
ceiling. The attic is in the shape of a triangular prism. Linda draws the net and writes
the expression below to represent the surface area of the attic. Are Linda's net and
expression correct?
Sally has 2 cats and each cat eats of a tin of cat food each day.
Sally buys 7 tins of cat food.
For how many days will the cat food feed her 2 cats?
You must show your working.
days=?
Answers
Answer:
Step-by-step explanation:
9 tins of cat food feed her 2 cats for 18 days
Step-by-step explanation:
Sally has 2 cats
food eaten by 1 cat each day =
food eaten by 2 cat each day= tins
sally buys 9 tins of cat food
then
tins required in = 1 day
1 tin required in
i.e 1 tin required in 2 days
9 tin required for = 9×2 = 18 days
hence , 9 tins of cat food feed her 2 cats for 18 days
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Sue has 2 cats. Each cat eats 1/4 tin of food each day. Sue buys 8 tine of cat food. Has sue got enough cat food to feed her 2 cats for 14 days?
7 tins of cat food = 3 1/2 days
Which country is in D3?
A. Brazil
B. Lithuania
C. China
This is a required question
Which country is in D6?
A. Slovenia
B. Mongolia
C. Czech Republic
Suppose only those whose belong to the top 30% of the ranking would automatically be qualified in the Olympics, which of the following countries would be included?
A. Hungary
B. Philippines
C. Russia
Suppose those who belong to the lower 40% of the ranking would not advance to the next elimination round, which of the following countries would be out?
A. France
B. Canada
C. Poland
Which of the following countries belong to the upper 50% of the ranking?
A. Belgium
B. Japan
C. United States
Answers
Answer:
\(1. b\\ 2. c\\ 3.c \\ 4. a\\ 5.b\)
Step-by-step explanation:
.
If the mean of 5, 11, 6, 4, 7, P and 10 is 8, find the value of (P)
Answers
Answer:
(p+5+11+6+4+7+10)/7=8
Step-by-step explanation:
p+43/7=8
p+43=8*7
p+43=56
p=56-43
p=13
Write an Equation given the point (4, 10) and a rate of -4.
Answers
Answer:
y=-4x+36
Step-by-step explanation:
y=mx+b
m is slope or rate; so m = -4
y=-4x + b
10=(-4×4) + b
36 = b
y=-4x+36
Starting at sea level, a submarine descended at a constant rate to a depth of −34 mile relative to sea level in 5 minutes.
What was the submarine's depth relative to sea level after the first minute?
Enter your answer as a fraction in simplest form.
Answers
Based on the fact that the submarine's depth was descended to at a constant rate, the submarine's depth relative to sea level with the passing of the first minute was -6⁴/₅ miles
How to find the submarine depth?The submarine descended at a constant rate to the current depth of -34 miles in 5 minutes. This means that the rate can be found by the formula:
= Current depth / Time
= -34 / 5
= -6.8 miles per minute
After the first minute, the depth is:
= -6.8 x 1
= -6.8 miles
This number in fractions is:
= -6 + 8/10
= -6 + 4 / 5
= -6⁴/₅ miles
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e
B
0
14. The table shows the number of inches of
rain over five months. What would be an
appropriate display of the data? Explain.
(Lesson 2)
Month
Number
of Inches
of Rain
Jan. Feb. Mar.
1.5
2.2
3.6
Apr.
5.3
May
4.8
Answers
The graph of the given function is attached.
Given is a function for the rainfall in 5 months in inches.
We need to display the data,
So, as we can see that the data is not showing any proportion or pattern,
So, it can be displayed as a line chart.
Hence the chart is attached for the function.
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Order of Operations MC)
Solve negative one fifth times the quantity 3 minus 12 times the quantity one third squared end quantity end quantity.
negative one and 42 over 45
negative one third
one fifth
15 over 45
Answers
The solution to the operation "negative one fifth times the quantity 3 minus 12 times the quantity one third squared end quantity end quantity." is 1/5(one fifth).
The correct answer choice from the above is option C
This means that when negative one fifth times the quantity 3 minus 12 times the quantity one third squared end quantity end quantity, it gives 1/5(one fifth
Order of operationPEMDAS:
ParenthesesExponentsMultiplicationDivisionAdditionSubtraction-1/5 × (3 - 12) × 1/3²
= -1/5 × (-9) × 1/9
= -1/5 × -9/9
= -1/5 × -1
= 1/5
Therefore, the solution to the operation "negative one fifth times the quantity 3 minus 12 times the quantity one third squared end quantity end quantity." is 1/5(one fifth).
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Answer: -1/3 is the correct answer
Step-by-step explanation: trust me I got 100% on this exam Btw the person above me is incorrect
Help me please and thank you..
Answers
Answer:
You will move each point of this shape 1 unit into the right. Then will move each point of this shape 2 units down. The draw line between each point.help possible branliest
Answers
Answer:
1.81
2.2^7
3. 4^5
4. 2^9
5. 1
6. 4^5
7. 6
8. 3^8
9. 15^0
10. 2^3
11. 3^2
12. 216
13. 5^3
14. 225
15. 343
16. 11^2
17. 625
18. 5^4
19. 169
20. 10^4
Step-by-step explanation:
The volume of the right cone below is 2767 units³. Find the value of x.
Answers
The value of x is approximately 49.4 units.
What is volume ?
Volume is a measure of the amount of space occupied by a three-dimensional object. It is typically expressed in cubic units such as cubic meters, cubic centimeters, or cubic feet. Volume is a fundamental concept in mathematics and physics, and it is an important property for describing the size, capacity, or amount of material contained within an object.
Let's start by defining some variables:
r: radius of the cone
h: height of the cone
V: volume of the cone
A right cone has a circular base, and its volume can be calculated as follows:
V = (1/3) * π * r² * h
If the diameter of the base is 12 units, then the radius is half of that:
r = 6 units
We also know that the volume is 2767 units³, so we can write:
2767 = (1/3) * π * 6² * h
Simplifying:
h = (2767 * 3) / (π * 6²)
h ≈ 49.15 units
Now, we need to find the value of x. We can use the Pythagorean theorem to relate x, r, and h:
x² = r² + h²
Substituting the values we have:
x² = 6² + 49.15²
x ≈ 49.4 units
Therefore, the value of x is approximately 49.4 units.
In summary, we used the formula for the volume of a cone to relate the radius and height of the cone to its volume. Then, we used the Pythagorean theorem to relate the unknown value of x to the known values of r and h. Finally, we substituted the known values to find the approximate value of x.
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Your complete question is :-The volume of the right cone below is 2767 units³. Find the value of x if it's diameter is 12
HELLLPPPPPPPP PLEASEEE use the image
Calculate the area of the garden. Show at least one step before you show your solution.
Answers
Answer:
20 2/3 feet
Step-by-step explanation:
7 3/4 * 2 2/3 = 20 2/3
Convert into improper fraction..
= 31/4 * 8/3
...
Solve equation...
= 20 2/3
The area of the garden is 20 2/3.
--
Answer:
20 1/6 feet is the area
Step-by-step explanation:
I did the math. 2 times 7 and 3/4 is 15 and a half, plus two thirds of 7 and 3/4= 5 1/6.
Add 15 and 1/2 plus 5 and 1/6 and you get 20 1/6 feet as your area
−0.22+�−0.33−0.22x+x−0.33x?
Answers
The answer to the equation −0.22x + x − 0.33x is 0.11x.
The answer is 0.11x. To solve this, we can start by rearranging the terms of the equation. The equation can be written as:
−0.22x + x − 0.33x = −0.22 + 0.33x
We then subtract x from both sides of the equation, resulting in:
−0.22x − x = −0.22 + 0.33x − x
We then combine like terms on the left side of the equation, resulting in:
−1.22x = −0.55
Finally, we divide both sides of the equation by -1.22 to solve for x, resulting in:
x = 0.11
Therefore, the answer is 0.11x.
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Complete question
What is the value of -0.22+−0.33−0.22x+x−0.33x?
According to the High School Athletics Participation Survey, 55% of students enrolled in high school participate in athletic programs. Suppose 12 high school students are randomly selected and the number who participate in athletic programs is recorded. Round probabilities to 4 decimal places. 6.Explain why this is a binomial experiment
Answers
Answer:
The given experiment is binomial experiment
1. There are two outcomes classified as success or failure.
2. The probability of success remains fixed on each trial.
3. There are n fixed number of trial.
4. The trails are independent.
Step-by-step explanation:
The given experiment is binomial experiment because
1. There are two outcomes classified as success or failure. Here success is participating in athletic programs and failure is not participating in athletic programs.
2. The probability of success i.e. probability of participating in athletic programs 0.55 remains fixed on each trial.
3. There are n fixed number of trial i.e. 12.
4. The trails are independent i.e. students participates in athletic programs independently.
What is the greatest common factor of 14 and28
Answers
Answer:
7
Step-by-step explanation:
2*7=144*7=28Common factor = 7Answer:
7
Step-by-step explanation:
The greatest common factor is the largest number that goes into both numbers. In this case, that is 7.