pls help me answer this
Answer:
C
Step-by-step explanation:
Bc everything is positioned right
I hope this helps
Consider two matrices, A and B
To do the operation shown, which statements must be true about Matrix A and Matrix B?
AxB
A. The number of columns in Matrix A must equal the number of rows in Matrix B
B. The number of rows in Matrix A must equal the number of columns in Matrix B
C. The number of rows in Matrix A must equal the number of rows in matrix B
D. The number of columns in Matrix A must equal the number of columns the matrix B
Plz answer now Presenting your findings best fits which step of the statistical process?
a) Form a question that can be answered by data.
b) Design and implement a plan that collects data.
c) Analyze the data using graphical and numerical methods.
d) Interpret and compare the data.
Answer:
Interpret and compare the data
Step-by-step explanation:
when you compare you are presenting your information and data to others and they present theirs to you.
Answer:
Interpret and compare the data
Step-by-step explanation:
Can someone please help me with this problem?
Answer:
1120 cm^3
Step-by-step explanation:
Volume of the ice cube = B * h
B = 20 cm^2
h = 4 cm
Volume = 20 * 4 = 80 cm^3
This volume is for one cube holder in the tray.
There are 7 * 2 such holders
There are 14 holders
Total volume of the holders =
14 * 80 =
1120 cubic cm
If $520 is borrowed for 290 days at 2.15% simple annual interest, how much will be repaid at the end of 290
days?
Step-by-step explanation:
Formula for simple interest
[tex]a = p(1 + rt)[/tex]
where a = final amount
p = principal amount
r = annual interest rate
t = time in years
given p = 520,
r = 2.15/100
t = 290/365 (1 year = 365 days)
[tex]a = 520(1 + ( \frac{2.15}{100} )( \frac{290}{365} )) \\ = 520 (1 + \frac{1247}{73000} ) \\ = 520( \frac{74247}{73000} ) \\ = 528.88 \: (2.dp)[/tex]
write down 4 common multiple of 9 and 6
Answer:
hi
Step-by-step explanation:
i think so
18,36,54
there is only 3
hope it helps
have a nice day
Answer:
18, 36, 90, 180 are 4 common multiples of 9 & 6!
Hope this helps!
A random sample of 8 cigarettes of a certain brand has an average nicotine content of 4.2 milligrams and a standard deviation of 1.4 milligrams. Is this in line with the manufacturer’s claim that the average nicotine content does not exceed 3.5 mg? Use a 0.01 level of significance and assume the distribution of nicotine contents to be normal.
Answer:
0.0793 > 0.01, which means that we have a result in line with the manufacturer's claim.
Step-by-step explanation:
Manufacturer’s claim that the average nicotine content does not exceed 3.5 mg
This means that the null hypothesis is given by:
[tex]H_{0}: \mu = 3.5[/tex]
And the alternate hypothesis is:
[tex]H_{a}: \mu > 3.5[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
3.5 is tested at the null hypothesis
This means that [tex]\mu = 3.5[/tex]
A random sample of 8 cigarettes of a certain brand has an average nicotine content of 4.2 milligrams and a standard deviation of 1.4 milligrams.
This means that [tex]n = 8, X = 4.2, \sigma = 1.4[/tex]
Value of the z-statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{4.2 - 3.5}{\frac{1.4}{\sqrt{8}}}[/tex]
[tex]z = 1.41[/tex]
Pvalue of the test:
We are testing if the mean is higher than 3.5.
The sample mean found is of 4.2, and we have to find the probability of finding a sample mean at least as large as this, which is 1 subtracted by the pvalue of z = 1.41.
z = 1.41 has a pvalue of 0.9207
1 - 0.9207 = 0.0793
0.0793 > 0.01, which means that we have a result in line with the manufacturer's claim.
[tex]12 {?}^{2} [/tex]
Solve the equation using the method of completing the square.
Answer:
D) x = ± 2√5 - 4
Step-by-step explanation:
2x² + 16x - 8 = 0
Yah, i plugged this into m a t h w a y
(all of ur questions pretty much can use this app or website)
Answer:
D
Step-by-step explanation:
Given
2x² + 16x - 8 = 0 ( divide through by 2 )
x² + 8x - 4 = 0 ( add 4 to both sides )
x² + 8x = 4
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(4)x + 16 = 4 + 16
(x + 4)² = 20 ( take the square root of both sides )
x + 4 = ± [tex]\sqrt{20}[/tex] = ± [tex]\sqrt{4(5)}[/tex] = ± 2[tex]\sqrt{5}[/tex] ( subtract 4 from both sides )
x = - 4 ± 2[tex]\sqrt{5}[/tex] → D
Please only answer the odds for example 1. 3. 5. 7. 9. thanks if your answer is a virus or if its absurd i will repo thanks also I am giving brainlest for correct answers(:
Set A:
1. 1 1/2 - closest to 1
2. 11/24 - closest to 1/2
3. 3/16 - closest to 0
4. 11/24 - closest to 1/2
5. 8/15 - closest to 1/2
6. 49/60 - closest to 1
7. 1 1/10 - closest to 1
8. 31/60 - closest to 1/2
Set B:
1. Common denominator = 10
2. Common demoninator = 18
3. Common denominator = 28
Combining Like Terms:
11z+17-7z-6
Answer:
4z+11 final answer
Step-by-step explanation:
11z+17-7z-6 this is the Q
11z-7z+17-6
4z+11 the result is 4z+11
In AABC, mZA = 75° and mZC = 20°, What is mZB?
Answer:
3.75 degrees if you need to divide, addition then it is 95 degrees, subtraction 55 degrees, and if it's multiplication 1500 degrees
IF THERE ARE LINKS IN THE ANSWERS DO NOT DOWNLOAD THE FILE IT IS NOT AN ANSWER IT IS A VIRUS
This is what I need help with LIKE PLEADE
9514 1404 393
Answer:
y = 3x -8
Step-by-step explanation:
The equation of the given line is in slope-intercept form ...
y = mx + b
Matching that equation to this pattern, you see the slope is ...
m = 3
The parallel line will have the same slope.
If you rearrange the above equation, you find ...
b = y - mx
For the given point and slope, the new y-intercept will be ...
b = 4 - 3(4) = -8
The equation you want is ...
y = 3x -8
24-5₂
Sorry i tried to put the 2 at the top edge of the 5 but i could not.
1. In a fishing contest, the two largest bass weighed a total
of 22 pounds. The first-place bass weighed 8 pounds
more than the second-place bass. Find the weights of
the first-place and second-place bass.
Answer:
First place fish weights 15 pounds.
Second place fish weights 7 pounds.
Step-by-step explanation:
7+8=15
15+7=22
Hope this helped!
To a set of five grades with an average of 7.31, the following grades are added 4.47 and 9.15 What is the new average?
Answer:
New mean average of 7 grades = 7.17 (Approx.)
Step-by-step explanation:
Given:
Mean average of 5 grades = 7.31
Number of grades = 5
New grades = 4.47 and 9.15
Find:
New mean average of 7 grades
Computation:
Total of old grades = Mean average of 5 grades x Number of grades
Total of old grades = 7.31 x 5
Total of old grades = 36.55
Total of new grades = Total of old grades + 4.47 + 9.15
Total of new grades = 36.55 + 4.47 + 9.15
Total of new grades = 50.17
New mean average of 7 grades = 50.17 / 7
New mean average of 7 grades = 7.167
New mean average of 7 grades = 7.17 (Approx.)
HELP ASAP
Find the value of x. Round to the
nearest tenth.
16
Х
x = [?]
Answer:
x = 9. 177
Step-by-step explanation:
3 When 25 x+2y-* x-12y+3) x-1ży+3) is simplified, what is the resulting expression? 1 Tox+23y+6 7. x+23y+6 x+85y+8 1 Tox+4*x+3
Answer:
B
Step-by-step explanation:
PLEASE HELP ASAP REAL ANSWERS ONLY OR WILL BE DELETED! 20 PTS!!
To the nearest tenth of a centimeter, how tall is a cylinder with a radius of 7.4 cm and volume of 2119.5 cm3 Give the approximate answer rounded to 2 decimal places.
Step-by-step explanation:
v= 2×pi×r²×h=2119.5cm³
h=2119.5/(2×pi×r²) r=7.4cm
Answer:
12.32cm
Step-by-step explanation:
Volume of cylinder = πr²h
2119.5=π(7.4²)h
h=2119.5/54.76π
h=12.3202666868
h=12.32cm
Find the slope of the line between each pair of points, write your answer as a improper fraction or a whole number:
(19,-12) and (5, 16)
Three friends went running.
Josh ran
Eric ran 7 1/2 miles
of the miles Eric ran
Kerry ran of the miles Josh ran.
How many miles did Kerry run?
Answer:
7 1/2+ 7 1/2=146 of 146 Kerry and Eric ran the same amount each
6. Mary earns $7 an hour working at the local kennel. She is trying to save money to buy a
new DVD player that costs $210. Which equation can be used to find the number of hours she
must work before she can buy the DVD player?
A. 7x = 210
B. x + 7 = 210
C. 210- x = 7
D. 210x = 7
Answer:
a
Step-by-step explanation:
7 times a number will add up to 210
Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 72 times in 4 minutes. What is her
blinking rate, in blinks per minute?
Answer:
18
Step-by-step explanation:
Find the volume of the prism. Write your answer as a decimal.
6 ft.
9 ft
4.5 ft
helpp plss
Answer:
Step-by-step explanation:
It would be 2.43ft cubed. You first have to multiply 6 x 9 to get 54 and then Do 54 x 4.5 to get 243 ft cubed. Next you have to put it in fraction form 243/100. After that you have to divide 243 by hundred( you can do this by moving the decimal place two places to the left) and you get the answer 2.43 ft cubed
A car journey is in two stages Stage1 the car travels 110 miles in 2 hours Stage 2 the car travels 44 miles at the same average speed as stage 1 Work out the time for stage 2 Give you answer in minutes.
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Answer:
48 minutes
Step-by-step explanation:
The average speed for stage 1 is ...
speed = distance/time = (110 mi)/(2 h) = 55 mi/h
Then the time for stage 2 is ...
time = distance/speed = (44 mi)/(55 mi/h) = (4/5 h)(60 min/h) = 48 min
The time for stage 2 is 48 minutes.
Answer:
Solution :-We know that
SpeeD = Distance/Time
Speed = 110/2
Speed = 55 mi/hr
For, 2
Speed = 44/55
Speed = 4/5
Speed = 48 min
[tex] \\ [/tex]
Help with my assignment please
I couldn’t fit part b in the picture so can you please answer this too
Part B
Write the length of the hypotenuse rounded to
nearest hundredth.
The length of the hypotenuse is
Answer:
the answer ti the first one is B
Step-by-step explanation:
hypotenuse is 12.649
PLEASE HELP AND NO LINKS OR YOU WILL BE REPORTED
I need help with this, I wanna say the answer is 14 but I’m afraid the answer is wrong please help me
Liam made 10 robots in five hours. In all, how many hours will you need to make 18 robots
Order the numbers from least to greatest!
Answer:
edcafgb
Step-by-step explanation:
-2 1/2 = -5/2 < -2 < -1.75 < -1 < 1.75 < 9/4
*-2 1/2 and -5/2 are the same.
PLLLLEEEEAAASSSEEEE HHHEEELLLPPPP!!!!! WILL MARK BRAINLIEST
This table shows the daily high temperatures, in degrees Fahrenheit, for two towns over a 10-day period.
Town A 45 50 42 57 54 53 50 49 47 47
Town B 30 35 43 50 60 68 70 68 40 30
Based on these results, which conclusions can you draw about the temperatures in the two towns over the 10-day period?
Select each correct answer.
On average, Town A is several degrees warmer than Town B during this time period.
On average, Town A is several degrees cooler than Town B during this time period.
On average, the temperatures in the two towns are about the same during this time period.
The temperatures in Town A are more variable than the temperatures in Town B.
The temperatures in Town A are less variable than the temperatures in Town B.
The temperatures for both towns vary by about the same amount.
Answer:
1 and 5 I think
Step-by-step explanation:
Answer:
1 ANS 5 PROBABLY
Step-by-step explanation: