Answers
Answer:
Step-by-step explanation:
the was I understand matrix multiplication, I re-learned tonight so I could be wrong but.....
according to Gaggle matrix multiplication is possible when the number of columns in matrix 1 equals the number of rows in matrix 2
it is called the dot product (that sounds familiar)
first choice has 2 columns and 1 row can't multiple this one
second choice has 1 column and 2 rows can't multiple this one
third choice has 2 columns and 1 row can't multiple this one
fourth choice has 1 column and 1 row This one can be multiplied
Related Questions
what is m<M to the nearest degree? show your work.
Answers
Answer:
27°
Step-by-step explanation:
We solve the above question using the Trigonometric function of Sine
sin theta = opposite/Hypotenuse
Opposite = 5
Hypotenuse =11
sin theta = 5/11
theta = arc sin (5/11)
theta = 27.035691789°
Approximately = 27°
Angle m<M = 27°
An Experienced ice skater spins on the ice, creating a perfect circle with a diameter of 4 feet. What is the circle's radius?
Answers
Answer:
2
Step-by-step explanation:
the radius is half the diameter from the middle!
Which statement best describes a characteristic of money market accounts?
A. Money market accounts have a predetermined time limit before a withdrawal can be made.
B. Money market accounts allow for more withdrawals than regular savings accounts but with higher interest rates.
C. Money market accounts have higher interest rates than regular savings accounts but with more restrictions.
D. Money market accounts have no withdrawal minimums.
Answers
Answer:
Correct answer is C- Money market accounts have higher interest rates than regular savings accounts but with more restrictions
Step-by-step explanation:
took the quiz
If Maya’s crew paints the platform at a rate of 720 feet per hour, determine how long to the nearest hour it will take them to paint the entire platform. ( read and respond)
Answers
Answer:
400/2.5 = 720/x
400x = 720 x 2.5
x = 4.5
Step-by-step explanation:
The required hours it would take to paint the entire platform is given as x/720. Where x is the length of measure of the platform.
What is rate of change?Rate of change is defined as the change in value with rest to the time is called rate of change.
Here,
Maya’s crew paints the platform at a rate of 720 feet per hour,
Let the length of the platform be x,
Now,
Divide the length with the rate, giving the time to paint the complete platform,
Time = length/rate
Time = x / 720
Thus, the required hours it would take to paint the entire platform is given as x / 720. Where x is the length of measure of the platform.
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Allison is saving to buy a $500 bicycle by working during
summer vacation,
• The job pays her $8 for every 1 hour worked.
• Allison works exactly 20 hours each week.
If she works for 4 weeks and buys the bicycle, how much
money will she have left over?
Answers
Answer:
140.00
Step-by-step explanation:
20 x 4 = 80 hours worked
80 x 8.00 = $640.00
640.00 - 500.00 = 140.00
Solve for n.
4/44 = n/77
A. n = 4
B. n = 28
C. n = 264
D. n = 7
Answers
First: you would cross multiply and you should get 44n = 308. Then you would divide both sides by 44 and you should get n = 7.
How would this following triangle be classified I’ll give brainliest
Answers
Answer:
second answer
isoceles rigth
Step-by-step explanation:
tan(x)/sec(x)=sin(x)
Answers
Answer:
(identity has been verified)
Step-by-step explanation:
Verify the following identity:
tan(x)/sec(x) = sin(x)
Hint: | Eliminate the denominator on the left hand side.
Multiply both sides by sec(x):
tan(x) = ^?sec(x) sin(x)
Hint: | Express both sides in terms of sine and cosine.
Write secant as 1/cosine and tangent as sine/cosine:
sin(x)/cos(x) = ^?1/cos(x) sin(x)
Hint: | Come to a conclusion.
The left hand side and right hand side are identical:
Answer: (identity has been verified)
Hope you could understand.
If you have any query, feel free to ask.
These 12 shapes are put into a bag. If you reach
into the bag 60 times, replacing the shape after
each time, predict how many times you would pull
out a circle.
25 times
20 times
30 times
15 times
Answers
4(c-3)=8
what does c equals?
correct answers ONLY please
Answers
Answer:
the answer is this 4(c-3)=8 is c=5
Amanda's computer weighs 56 ounces. How many pounds does it weigh? Amanda's computer weighs______pounds. What is the answer ?
Answers
Answer:
Amanda's computer weighs 3.5 pounds
Step-by-step explanation:
A study was conducted to investigate whether the mean price of a dozen eggs was different for two different grocery stores, Store A and Store B, in a large city. A carton of one dozen eggs from each store was randomly selected for each of 35 weeks, for a total sample size of 35 cartons from each store. The mean price of the 35 cartons was recorded for each store. The difference in the mean carton price for the stores will be calculated.
Which of the following is the appropriate test for the study?
A one-sample z -test for a population proportion
A one-sample t -test for a sample mean
A matched-pairs t -test for a mean difference
A two-sample t-test for a difference between population means
A two-sample z-test for a difference between population proportions
Answers
Answer:
A two-sample t-test for a difference between population means
Step-by-step explanation:
Answer:
D) A two-sample t -test for a difference between population means
Step-by-step explanation:
Two random samples are selected on a quantitative variable, and the difference in the sample means will be calculated. The appropriate test is the two-sample t-test for a difference in population means.
Calculate the value of y to the nearest hundredth.
Answers
Answer:
y ≈ 9.24
Step-by-step explanation:
Using the cosine ratio in the right triangle.
cos30° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{8}{y}[/tex] ( multiply both sides by y )
y × cos30° = 8 ( divide both sides by cos30° )
y = [tex]\frac{8}{cos30}[/tex] ≈ 9.24 ( to the nearest hundredth )
Solve for w,x,y and z
Answers
Answer:
Step-by-step explanation:
2y - 6 + y = 180 {Co-interior angles}
3y - 6 = 180
3y = 180 + 6
3y = 186
y = 186/3
y = 62
y + w = 180 {Linear pair}
62 +w = 180
w = 180 - 62
w = 118
ΔILK ,
∠L + ∠ I + ∠K = 180 {Angle sum property of triangle}
w + z + 30 = 180
118 + z + 30 = 180
z + 148 = 180
z =180- 148
z = 32
x = z {Alternate interior angles}
x = 32
What percent of the symbols are $?
$ *
* $ $
*
*
* *
*
$ $ $ $
Plzzzzz help
Answers
A scarf cost $17 after the 15% discount was applied. What is the original price?
Answers
20-15%= 17
Evaluate the following expression. log4 256
A. 64
B. 16 C. 4 D. 8
Answers
The simplified value of the expression [tex]log_4[/tex] 256 is 4.
Thus, option (C) is correct.
To evaluate the expression [tex]log_4[/tex] 256, determine the power to which 4 must be raised to obtain 256.
So, the equation can be set up
[tex]4^x[/tex] = 256.
Now, put the value of x one by one as
[tex]4^2 = 16[/tex]
[tex]4^3 = 64[/tex]
[tex]4^4 = 256[/tex]
Thus, when the number 4 raise to the power 4 it gives 256.
Thus, option (C) is correct.
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help with this please
Answers
Answer:
see explanation
Step-by-step explanation:
Under a translation < 5, - 9 >
5 is added to the original x- coordinate and 9 is subtracted from the original y- coordinate, that is
A(1, 4 ) → A'(1 + 5, 4 - 9 ) → A'(6, - 5 )
B(2, - 2 ) → B'(2 + 5, - 2 - 9 ) → B'(7, - 11 )
C(- 3, 2 ) → C'(- 3 + 5, 2 - 9 ) → C'(2, - 7 )
PLEASE HELP
A company's human resources (HR) department wants to find out what proportion of the company's 1,500 employees regularly visit the in-office recreational room. Throughout a week, HR assistants randomly handed out surveys to employees as they entered the office building every day, until 400 different employees confirmed or denied they visited the recreational room on a regular basis. The survey found that over 30% of the employees who completed the survey visit the recreational room on a regular basis. Which assumption can be made regarding the proportion of all the employees who visit the recreational room on a regular basis?
А. No assumptions can be made about the approximate proportion of all employees who visit the recreational room because the sample is blased.
B. The approximate proportion of all employees who visit the recreational room will be similar to the sample proportion because the sample accurately represents the population.
C. The approximate proportion of all employees who visit the recreational room will be greater than the sample proportion because it is a larger group of employees.
D. No assumptions can be made about the approximate proportion of all employees who visit the recreational-room because the sample size is too small.
Answers
Answer:
The answer is B
Step-by-step explanation:
The approximate proportion of all employees who visit the recreational room will be similar to the sample proportion because the sample accurately represents the population.
What is a survey?A survey is conducted in order to collect a piece of specific information from a group of people chosen from the entire population who denotes the entire population for those questions.
The assumption can be made regarding the proportion of all the employees who visit the recreational room on a regular basis is:
B.) The approximate proportion of all employees who visit the recreational room will be similar to the sample proportion because the sample accurately represents the population.
Learn more about Survey:
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can someone help me with this please - can you also give a step by step not just an answer
Answers
Answer:
The way I was taught to do it is to change value into a total fraction, then multiple the numerators together, multiply the denominators together, and finally reduce as far as possible.
7/9 x 5 2/5 = 7/9 x 27/5 = 189/45 = 4 9/45 = 4 1/5
1 3/4 x 4 1/6 = 7/4 x 25/6 = 175/24 = 7 7/24
help me please ❤️ !!!!
Answers
Answer:
Piece-Wise Function
can have more than one type of functionholes can existto evaluate, look at the right side to determine which piece of the function to useLinear Function
is written in standard form Ax + By = Cslope is the same for the entire graphis written in slope-intercept form y=mx+bNeither one of these always looks like a parabola.
Which is equivalent to 16^3/4
Answers
Answer:
1024
Step-by-step explanation:
Find the value of 1.999.... in the form of p
q
where p and q are integers.
Answers
1.999… is exactly the number 2.
Let x = 1.999… . Then 1000x = 1999.999… . Subtract x from this to eliminate the fractional part, and you get
1000x - x = 1999.999… - 1.999…
1000x - x = 1999 - 1
999x = 1998
x = 1998/999 = 2/1 = 2
So p = 2 and q = 1.
Solve the equation for x, and enter your answer in the box below x/2=9
Answers
try multiplying both side of the equation by 2.
x/2*2=9*2
I think you can solve it yourself :)
Answer:
x=18
Step-by-step explanation:
Find the simple Interest
I=?
P=$1300
R= 5%
T=6 years
$390
$1690
O $39000
i need help...
Answers
Answer:
$390 is the correct answer
Answer:
390
Step-by-step explanation:
(1300)(.05)(6) = 390
I need help and the step to find
Answers
Answer: The answer is 169.
Step-by-step explanation:
Hope this helps! Have a good day! :)
SOS PLEASE HELP write the equation for this line
Answers
Answer:
y = - x + 3
or
x + y = 3
Step-by-step explanation:
Line is passing through the points (3, 0) & (0, 3)
y-intercept (b) = 3
Slope of the line (m) = (3 - 0)/(0 - 3) = 3/(-3) = - 1
Now, required equation of line is given as:
y = mx + b
y = - 1*x + 3
y = - x + 3
or
x + y = 3
In a survey, some children were asked to choose whether they like to stay up late or get up early.
35% of the students said they prefer to get up early. 28 students prefer getting up early. How many students in total were surveyed?
students
Answers
Answer:
80 Students
Step-by-step explanation:
So I set up my problem like this(This is a way to figure a certain amount of a percent or vice versa):
35 28
____ = _____
100 x
First, you do 100 x 28= 2800
Second, do 2800 divided by 35= 80
The number in students surveyed is 80.
what is 40 percent of 90 percent
Answers
Answer:0.36
or 36
Step-by-step explan: used calculator
if 35% of a number is 140 what is that number