Answer:
Step-by-step explanation:
13
please show work out
find the dimension of A34×b41 matrix]
A34 should represent either a square matrix with number of columns=number of rows =34 or the 4th element in the 3rd row in the matrix A [which is not possible in the given matrix since each row has only 3 elements]
The dimension of a matrix is given as (the number of rows it has, say a) x (the number of columns it has, say b) [read as a by b].. The given matrix has 4 rows and 3 columns, so its dimension is 4x3.
For a matrix A of dimension axb to be multiplied with a matrix B of dimension cxd, the number of columns of matrix A should be equal to the number of rows of matrix B, that is b = c should be satisfied. In this case both matrices are of the same dimension 2x3 but 3 (number of columns in first matrix) is not equal to 2 (number of rows in second matirx). So these matrices cannot be multiplied as their dimensions do not match.
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what is an example of data organization and analysis
The answer choices which represents an example of data organisation and analysis are;
Choice A; Drawing a pie chart to show the percentage of sunny days, rainy days, and cloudy days without precipitation.
Choice C. Running a weather station.
Choice E; Summing the number of days with precipitation, summing the number of sunny days, and summing the number of cloudy days without precipitation.
Data organisation and Analysis.The concept above as the name implies involves the process of gathering data in a bid to further carry out analysis and consequently, draw inferences from such analysis.
Therefore, the answer choices A, C and E represent such activities which involve data organisation and analysis.
Complete question:
What is an example of data organisation and analysis?
Check all that apply.
A. Drawing a pie chart to show the percentage of sunny days, rainy days, and cloudy days without precipitation
B. Rejecting extreme data
C. Running a weather station
D. Transferring the weather data to a computer application
E. Summing the number of days with precipitation, summing the number of sunny days, and summing the number of cloudy days without precipitation.
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An example of data organization and analysis include:
A. drawing a pie chart to show the percentage of sunny days rainy days and cloudy days without precipitation.
E. summing the number of days with precipitation summing the number of sunny days and summing the number of cloudy days without precipitation
What is data organization?Data organization and analysis are accomplished by a process of categorizing and organizing data based on its category and how it is studied. A is an example of data organizing and analysis.
Drawing a pie chart to display the percentage of sunny days, rainy days, and cloudy days without precipitation - in this example, data organization is done through charts and graphs, with data classification visible. e is another example.
Summing the number of days with precipitation, sunny days, and cloudy days without precipitation - in this example, data organizing is done solely through summation of numbers, with no graphs or charts to graphically portray the data.
In conclusion, the correct options are A and E.
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Which of the following activities are examples of data organization and analysis?
Check all the apply.
A. Drawing a pie chart to show the percentage of sunny days, rainy days, and cloudy days without precipitation
B. Rejecting extreme data
C. Running a weather station
D. Transferring the weather data to a computer application
E. Summing the number of days with precipitation, summing the number of sunny days, and summing the number of cloudy days without precipitation.
PLS PLS HELP ASAP!!!
translate the image using the rule below
Answer:
t=(1,-3) c=(-2,-2) r=(-3,-5)
Step-by-step explanation:
add 2 to each x value and subtract 4 from each y value
3 movie tickets cost $36. At this rate, what is the cost per ticket?
Answer:
12
Step-by-step explanation:
36 divided by 3 is 12
A =
h(a + b)/2 solve for b
Answer: b = (−ah+2a)/h
Step-by-step explanation:
Step 1: Flip the equation.
Step 2: Add (-1)/2ah to both sides.
Step 3: Divide both sides by h/2.
If x is a positive integer, this expression is equivalent to what?
Given:
[tex]\text{ Th expression is }4x^{\frac{1}{2}},\text{ x is a positive integer.}[/tex]Required:
Which option is equivalent?
Explanation:
The equivalent for is
[tex]\begin{gathered} =4x^{\frac{1}{2}} \\ =4\sqrt{x} \end{gathered}[/tex]Answer:
Option B is correct answer.
what is 0.4111111… as a fraction
Please help me find out what 758x92 is
Answer:69736
Step-by-step explanation:
0.8-2x=-1.4
Solve for x
Answer:
x= -0.3
Step-by-step explanation:
0.8-2x=1.4 Set up equation
-2x=1.4-0.8 Put Like terms together
-2x=0.6 Subtract like terms
x=0.6/-2 Divide
x=-0.3 Answer
May I please get help with this. I have tried multiple times but still could not get the correct answers for them
ANSWER
[tex]\frac{2}{5}[/tex]EXPLANATION
To find the scale factor of the model to the sculpture, we have to divide one set of measurements of the model and sculpture.
Let us divide the length of the model by that of the sculpture:
[tex]\begin{gathered} \frac{10}{25} \\ \Rightarrow\frac{2}{5} \end{gathered}[/tex]That is the scale factor of the model to the real sculpture.
A veterinarian recorded a cat's resting heart rate to be 120 beats over a 45-second time period. Complete the table to find the constant of proportionally in beats per minute.
Btw I'm in 7th grade
Number of Minutes: 0.25 0.5 0.75 1
Number ofHeartbeats: ? ? ?
The table will be:
Number of Minutes: 0.25. 0.5. 0.75 1
Number of heartbeats: 0.6675 1.335 2 2.67
How to calculate the value?The veterinarian recorded a cat's resting heart rate to be 120 beats over a 45-second time period. The constant will be:
= 120 / 45
= 2.67
Therefore, to find the heartbeat, we have to multiply the numbers of minutes by 2.67. This is illustrated as:
= 2.67 × 0.25 = 0.6675
This illustrates the concept of multiplication.
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Which system is responsible for carrying this oxygen to the muscles?
Answer:
The circulatory system
Step-by-step explanation:
Is this math? lol
:]
Of 85 entries in the parade, 19 were
marching bands. How many entries were
not marching bands?
(5y-23) (2x+13) 47 (3x) find the values of c and y
The value of variable x and y are 24 and 19 respectively.
How to find angles?We have to find the variables x and y of the angles.
Therefore,
using angles in a triangle,
2x + 13 + 47 + 5y - 23 = 180
2x + 5y = 180 - 13 - 47 + 23
2x + 5y = 143
Using corresponding angles,
180 - (2x + 13) = 47 + 3x
180 - 2x - 13 = 47 + 3x
180 - 47 - 13 = 3x + 2x
120 = 5x
x = 120 / 5
x = 24
Hence,
2(24) + 5y = 143
5y = 143 - 48
5y = 95
y = 95 / 5
y = 19
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AGAIN PLS HELP ME I NEED IT
Answer: Yes, No, No, Yes
Step-by-step explanation:
Goal: Substitute all the ordered pairs into the equation.
1) (1,-3)
5(1) + 2(-3) = -1
5 + -6 = -1
-1 = -1
Yes
2) (2,8)
5(2) + 2(8) = -1
10 + 16 = -1
25 = -1
No
3) (-4, -6)
5(-4) + 2(-6) = -1
-20 + -12 = -1
-32 = -1
No
4) (-3, 7)
5(-3) + 2(7) = -1
-15 + 14 = -1
-1 = -1
Yes
Select the correct answer.
-
The function f(x) has been transformed to give g(x). Which of the following functions represents g(x)?
A. 9(z) = 2z²
B. 9(2) = () z²
C. g(z)=()=²
D. g(z) = 42²
c.
Step-by-step explanation:
you can check the the correct answer by giving tables value for eg f(x)= 2 g(f(x))= 1/2(2)²=2
as you can see in the graph g(x) (2,2)
Choose the statements that are true about a cube with side length 1 unit.
It has a volume of 6 cubic units.
It has a volume of 1 cubic unit.
It has a volume of 3 cubic units.
It is called a "one block."
It can be used to measure volume.
It is called a "unit cube."
The answer to the mentioned statement are :
first statement is WRONG
the second statement is RIGHT
The third statement is also WRONG
the fourth statement is RIGHT
fifth statement is RIGHT
sixth statement is WRONG
The side of the given cube is 1 unit.
This means that the Length= Breadth = Height = 1 unit because it is cube
This means that the volume can be described as
( side ) ³
that is 1 × 1 × 1 = 1 cubic unit
thus the first statement is WRONG
However the second statement is RIGHT
The third statement is also WRONG
since it is a cube whose volume is 1 cubic unit
thus we can say that it is one block
Thus the fourth statement is RIGHT
fifth statement is RIGHT
sixth statement is WRONG
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Question 5Which of the following is equivalent to (2 – 2) (x - 1)
What is the solution set of the following equation?
-8x + x + 15 = -7x + 12
a. Ø
b. {all reals}
c. {1/7}
Answer:
A
Step-by-step explanation:
(-8x + x) + 15 = -7x +12
-7x +15 = -7x + 12
15 = 12 There are no solutions
What is the value of V?
V-22+v+32+v=180
V-22+v+32+v=180
V+v+v=170
3v=170
v=56.67
On a map of a campground, the Sleepy Bear cabin is located at (-14,-10) and the Deer Run cabin is located at (-14,-6). How far apart are the two cabins? (Just type in the number)
Answer: -4 over 0 (I think) I hope this helps a little bit
Step-by-step explanation: Finding the slope
(-14,-10) and (-14,-6)
Use your Y values and subtract them -10-(-6) or -10 + 6= -4 that will be your numerator
Use your 2 X values and subtract them -14-(-14) or -14+14=0 that will be your denominator
Slope will be -4 over 0
A retired couple invested $8000 in bonds. At the end of one year, they received an interest payment of $456. What was the simple interest rate of the bonds?
5.7%
Explanaton:let amount invested = Principal = $8000
time = 1 year
rate = ?
Interest = $456
To get the rate, we'll apply simple interest formula:
[tex]\begin{gathered} I\text{ = PRT} \\ I\text{ = interest, P = principal, R = rate, T = time} \end{gathered}[/tex][tex]\begin{gathered} 456\text{ = 8000}\times R\times1 \\ 456\text{ = 8000R} \\ \text{divide both sides by 8000:} \\ \frac{456}{8000}\text{ =}\frac{8000R}{8000} \\ \\ R\text{ = 0.057} \\ In\text{ percent, rate = 0.057}\times100 \\ \text{Rate = 5.7\%} \end{gathered}[/tex]Hence, the simple rate of the bonds is 5.7%
Using Pythagoras' Theorem please solve it.
[tex] \huge\underline\mathcal{Answer \: - }[/tex]
Pythagoras theorem states that the square of hypotenuse equals the sum of square of other two sides.
therefore ,
[tex](25) {}^{2} = (x + 3) {}^{2} + 4 { }^{2} (x + 2) {}^{2} \\ \\ \longrightarrow \: 625 = x {}^{2} + 9 + 6x + 16(x {}^{2} + 4 + 4x) \\ \\ \longrightarrow \: 625 = x {}^{2} + 9 + 6x + 16x {}^{2} + 64x + 64 \\ \\ \longrightarrow \: 625 = 17x {}^{2} + 70x + 73 \\ \\ \longrightarrow \: 17x {}^{2} + 70x + 73 - 625 = 0 \\ \\ \longrightarrow \: 17x {}^{2} + 70x - 552 = 0[/tex]
now using quadratic formula ,
[tex]x = \frac{ - b \: \pm \: \sqrt{b {}^{2} - 4ac} }{2a} \\ [/tex]
here , a = 17 , b = 70 , c = -552
substituting the values in the equation above ,
[tex]x = \frac{70 \: \pm \: \sqrt{70 {}^{2} - 4(17)( - 552)} }{2 \times 17} \\ [/tex]
after simplifying we get ,
[tex]\boxed{x = 4} \: \: or \:\boxed{ x = \frac{ - 138}{7} } \\ [/tex]
since length can't be negative , therefore the other value will be neglected and hence ,
[tex]\boxed{value \: of \: x \: = \: 4 \: cm}[/tex]
hope helpful ;-;
======================================================
Work Shown:
As you mentioned, we'll use Pythagoras' Theorem aka Pythagorean Theorem.
[tex]a^2+b^2 = c^2\\\\(x+3)^2+(4(x+2))^2 = 25^2\\\\(x+3)^2+16(x+2)^2 = 625\\\\(x^2+6x+9)+16(x^2+4x+4) = 625\\\\x^2+6x+9+16x^2+64x+64 = 625\\\\17x^2+70x+73 = 625\\\\17x^2+70x+73-625 = 0\\\\17x^2+70x-552 = 0\\\\[/tex]
Next, we'll use the quadratic formula with a = 17, b = 70, c = -552.
[tex]x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-70\pm\sqrt{(70)^2-4(17)(-552)}}{2(17)}\\\\x = \frac{-70\pm\sqrt{42436}}{34}\\\\x = \frac{-70\pm206}{34}\\\\x = \frac{-70+206}{34} \ \text{ or } \ x = \frac{-70-206}{34}\\\\x = \frac{136}{34} \ \text{ or } \ x = \frac{-276}{34}\\\\x = 4 \ \text{ or } \ x \approx -8.1176\\\\[/tex]
Ignore the negative x value solution. The sides (x+3) and 4(x+2) will be negative values if we plugged in x = -8.1176, but negative side lengths do not make sense.
This makes x = 4 the only possible solution.
----------------
If x = 4, then,
vertical leg = x+3 = 4+3 = 7horizontal leg = 4(x+2) = 4*(4+2) = 4*6 = 24This is a 7-24-25 right triangle.
We can confirm this using the pythagorean theorem
[tex]a^2+b^2 = c^2\\\\7^2+24^2 = 25^2\\\\49+576 = 625\\\\625 = 625 \ \ \ \checkmark[/tex]
A diner serves a stack of potato slices that is 2.8 centimeters tall. The thickness of a potato is .35 centimeters. How many potato slices are in the stacks?
Given that a diner serves a stack of potato slices that is 2.8 centimeters tall. The thickness of a potato is 0.35 centimeters.
We have to determine the number of potato slices in the stacks.
The number of potato slices in the stack is given by:
[tex]\frac{2.8}{0.35}=8[/tex]Thus, the number of potato slices in the stack is 8.
If the assumptions for the large sample confidence interval for the population proportion are not met, what adjustments can be made?.
A confidence interval is made up of the mean of your estimate plus and minus the estimate's range. This is the range of values you expect your estimate to fall within if you repeat the test, within a given level of confidence.
A 95% confidence interval gives you a 5% chance of being wrong. A 90% confidence interval gives you a 10% chance of being wrong. In comparison to a 99% confidence interval, a 95% confidence interval is smaller (for example, plus or minus 4.5 percent instead of 3.5 percent).
When constructing a confidence interval for a propotion, if the condition of proportion requires 10 individuals in each category is not met, then confidence interval should be adjusted.
The number of individuals in each category is increased by 2 and sample size increases by 4.
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In the figure ZX = 2x + 1 YW = 3x - 1 and YX = 1, find perimeter of VYZ
The perimeter of triangle VYZ is 12 units.
How to find the perimeter of a triangle?The perimeter of a triangle is the sum of the whole sides of the triangle.
In other words, the perimeter of a triangle is the total distance covered by its boundaries or the sides.
Therefore,
perimeter of ΔVYZ = VY + ZY + ZV
Therefore,
VY = ZY = ZV = XW
Hence,
YW = YX + XW
Therefore,
XW = YW - YX
YW = 3x - 1
YX = 1
Hence,
XW = 3x - 1 - 1
XW = 3x - 2
Therefore,
perimeter of ΔVYZ = 3x - 2 + 3x - 2 + 3x - 2
perimeter of ΔVYZ = 9x - 6
ZX = YW
2x + 1 = 3x - 1
2x - 3x = - 1 - 1
-x = -2
x = 2
Therefore,
perimeter of ΔVYZ = 9(2) - 6
perimeter of ΔVYZ = 18 - 6
perimeter of ΔVYZ = 12 units
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Question
Solve 2y−18x=−26 for y.
Answer:
-26
Step-by-step explanation:
Determine if the relation is a
function. Use set builder and
interval notation for the
domain and range.
Function: Yes No
Domain:
Range:
Answer:
It would be helpful if you add more info on the question
Step-by-step explanation:
what is 25 + 20x factor
Answer:
5(4x+5)
Step-by-step explanation:
25+20x
=5(5+4x)
:]
For the data in the table, write an equation for the direct variation.
The equation of direct variation is,
[tex]\begin{gathered} y=kx \\ k=\frac{y}{x} \end{gathered}[/tex]Substitute the values of y and x.
[tex]\begin{gathered} k=\frac{5.4}{4} \\ k=1.35 \end{gathered}[/tex]So, the obtained equation will be y=1.35(x).
Let's check with the values of x.
1) If x=4
[tex]\begin{gathered} y=1.35x \\ y=1.35(4) \\ y=5.4 \end{gathered}[/tex]2) If x=2
[tex]\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}[/tex]3) If x=-2