Answers
See Explanation
Step-by-step explanation:
1)
[tex] \begin{bmatrix} - 3 & 5 & 6\\-3 & 0 & - 3\end{bmatrix} -\begin{bmatrix} 6 & - 1& 1\\0& - 4& - 5\end{bmatrix} \\\\
=\begin{bmatrix} - 3-6 & 5-(-1) & 6-1\\-3-0 & 0-(-4) & - 3-(-5)\end{bmatrix} \\\\
=\begin{bmatrix} - 3-6 & 5+1 & 6-1\\-3-0 & 0+4 & - 3+5\end{bmatrix} \\\\
=\begin{bmatrix} - 9 & 6 & 5\\-3 & 4 & 2\end{bmatrix} \\\\
[/tex]
2)
[tex] \begin{bmatrix} 4 & - 6 \\-3 & - 6\\2 & 6 \end{bmatrix} + \begin{bmatrix} 5 & 3 \\-5 & 5\\ 4 & - 5\end{bmatrix} \\\\
= \begin{bmatrix} 4 +5& - 6+3 \\-3+(-5) & - 6+5\\2+4 & 6+(-5) \end{bmatrix} \\\\
= \begin{bmatrix} 4 +5& - 6+3 \\-3-5 & - 6+5\\2+4 & 6-5 \end{bmatrix} \\\\
= \begin{bmatrix} 9& - 3 \\-8 & - 1\\6 & 1\end{bmatrix} \\\\[/tex]
Related Questions
find the value of 5÷1 by2 solve
Answers
2.5 i believe?
What is the slope of the line y = –2? a 0 b -2 c
Answers
Answer:
Zero
y=2 is a horizontal line, which has a slope of zero. x is the only variable that is changing, as y is always equal to 2 . Since we have no change in y , we have no "rise", therefore the slope is zero.
Answer:
slope = 0
Step-by-step explanation:
y = - 2 represents a horizontal line parallel to the x- axis.
Since the x- axis has a slope of zero then slope of y = - 2 is zero
The coefficient of x^5y^3 in the expansion of (x+4y)^8 is
Answers
Answer:
hahahahaha hacker lang poStep-by-step explanation:
ibig sabihin points lang habol ko sorry guysMs. Armstrong purchased a car for $20,000. After 4 years, the car was only worth $8,000. Write an equation in slope intercept form that can be used to find the value of the car y, after x number of years.
Answers
Answer:
$20,000=4x
Step-by-step explanation:
First if we want to find out how much the price of the car went down we would have to find out how much the price went down by subtracting $20,000 by $8,000. I got 12,000. Then we have to find out how much the price went down every year. So, $12,000 ÷ 4 = $3,000. So, in 4 years the price went down $3,000 dollars every year
22 The five-number summary for scores on a statistics exam is: 35, 68, 77, 83 and 97. In all, 196 students took this exam About how many students had scores between 68 and 83? a. 98 b. 39 c. 6
d. 148 e.49
Answers
The approximate number of students with Scores between 68 and 83 is 98.Answer: a. 98
The five-number summary for scores on a statistics exam is: 35, 68, 77, 83 and 97. In all, 196 students took this exam About how many students had scores between 68 and 83?
The five-number summary consists of the minimum value, the first quartile, the median, the third quartile, and the maximum value.
The interquartile range is the difference between the third and first quartiles. Interquartile range (IQR) = Q3 – Q1, where Q3 is the third quartile and Q1 is the first quartile. The 5-number summary for scores on a statistics exam is given below:
Minimum value = 35
First quartile Q1 = 68
Median = 77
Third quartile Q3 = 83
Maximum value = 97
The interval 68–83 is the range between Q1 and Q3.
Thus, it is the interquartile range.
The interquartile range is calculated as follows:IQR = Q3 – Q1 = 83 – 68 = 15
The interquartile range of the scores between 68 and 83 is 15. Therefore, the number of students with scores between 68 and 83 is roughly half of the total number of students. 196/2 = 98.
Thus, the approximate number of students with scores between 68 and 83 is 98.Answer: a. 98
For more questions on Scores .
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The Galen Middle School is building a new bicycle storage shed in the school yard. On a carpenter's blueprint, the scale reads 1 in. = 3 ft. The frame for a doorway on the blueprint is shown as a in. Wide and 2a in. High. When the shed is built, what will be the actual dimensions of the doorway
Answers
Answer:
Width = 3a
Height = 6a
Step-by-step explanation:
Given the following :
Scale = 1 in = 3 feets
Doorway frame on blueprint= a inches wide ; 2a inches High
Actual dimension of the doorway:
Since 1 in represent 3 feets
Actual doorway frame dimension will be :
Width = 3 * a = 3a
Height = 3 * 2a = 6a
help me if u can please
Answers
There are 576 heartbeats on 32 seconds the unite rate is...... heartbeats per second
Answers
Answer:
18
Step-by-step explanation:
I know this bc, if you divide the heart beats by the seconds you get the answer.
576/32=18
Hope this helps:)
the answer is 18
Does this graph represent a function? Why or why not?
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meaning that a single vertical line could pass through multiple points on the graph.
helpppppppppppppp:(((((((((((((((((((
the cake you are baking for a special occasion requires a flat top so it can be appropriately decorated. What should you do to achieve this goal.
Increase the temp. by 10°
Reduce the temp. by 25°
Increase the temp. by 45°
Reduce the temp. by 75°
Answers
Answer:
Reduce the temp by 25*
Step-by-step explanation:
Which expression is equivalent to t + 4 + 3 -2
Answers
Answer:
t + 5 ; 5 + t; t + 7 - 2;
Step-by-step explanation:
there are many more but these are some examples
What is 1/4=1/12+1/z
Answers
Answer:
[tex]\boxed {z = 6}[/tex]
Step-by-step explanation:
Solve for the value of [tex]z[/tex]:
[tex]\frac{1}{4} = \frac{1}{12} + \frac{1}{z}[/tex]
-The variable [tex]z[/tex] cannot equal to [tex]0[/tex] since division by zero is undefined. SO, you multiply both sides by [tex]12z[/tex], which is the least common multiple of [tex]4[/tex], [tex]12[/tex], and [tex]z[/tex]:
[tex]3z = 12z \times (\frac{1}{12}) + 12[/tex]
[tex]3z = z + 12[/tex]
-Take [tex]-z[/tex] and subtract it from [tex]3z[/tex]:
[tex]3z - z = z - z + 12[/tex]
[tex]2z = 12[/tex]
-Divide both sides by [tex]2[/tex]:
[tex]\frac{2z}{2} = \frac{12}{2}[/tex]
[tex]\boxed {z = 6}[/tex]
So, the value of [tex]z[/tex] of [tex]6[/tex].
What is the value of variable m and what relationship is used?
Answers
Answer:
The value of the variable m is 14
The relationship is used → 5m - 28° = m + m + m
Step-by-step explanation:
In the given figure
∵ An angle is divided into 3 equal angles
∵ One angle of these equal angles measures m
∴ That means every one of these equal angles measures m
∵ The measure of the angle which divided into 3 equal angles is 5m - 28°
→ That means its measure equal the sum of the measures of
the 3 equal angles
∴ 5m - 28 = m + m + m
→ Add the like terms in the right side
∴ 5m - 28 = 3m
→ Add 28 to both sides
∵ 5m - 28 + 28 = 3m + 28
∴ 5m = 3m + 28
→ Subtract 3m from both sides
∵ 5m - 3m = 3m - 3m + 28
∴ 2m = 28
→ Divide both sides by 2
∵ [tex]\frac{2m}{2}=\frac{28}{2}[/tex]
∴ m = 14
The value of the variable m is 14
The relationship is used → 5m - 28° = m + m + m
Evaluate: f(x) = -2x + 6 for x = 10.
Answers
Answer:
f=-[tex]\frac{x}{5}[/tex]+[tex]\frac{3}{5}[/tex]
Step-by-step explanation:
Answer:
Step-by-step explanation:
f(10) = -2(10) + 6 = -20 + 6 = -14
How do you know when a sequence is arithmetic vs. geometric?
Answers
Answer:
An arithmetic sequence is a sequence with the difference or pattern between two consecutive terms constant.
A geometric sequence is a sequence with a ratio between two consecutive terms constant.
Kray sells personalized photo frames. She charges $12 for the frame plus $0.25 for each letter the customer wants to engraved on the frame. Which function represents the relationship between the number of letters engraved on a frame, n, and the total cost of a frame, c,? 15 points
Answers
Answer:
c=0.25n+12
Step-by-step explanation:
Solve for z. Assume the equation has a solution for z. -4z + 1 = bz + c
Answers
Answer:
z=c-1/-4-b
Step-by-step explanation:
-4z+1=bz+c
out objective is to factor out z, so we can get rid of that b in order to solve for z.
-4z-bz=c-1
we can now factor by z
z(-4-b)=c-1
z=c-1/-4-b
make sure you dont forget restrictions
b cant equal -4
If-2 is a zero of quadratic polynomial P(x)=2x²-Kx,then K equal to
Answers
If -2 is a zero of the quadratic polynomial P(x) = 2x² - Kx, then K is equal to 4.
escribe how relative frequencies of past events are used to predict future events. (for example, if a student passed seven out of ten assignments in a course, what do you think is the probability that this student will pass the next assignment in the course? how did you calculate this probability?)
Answers
Relative frequencies of past events can be used to predict future events by using probability theory. Probability theory is a branch of mathematics that deals with the study of random phenomena.
In the given example, if a student passed seven out of ten assignments in a course, the probability that the student will pass the next assignment in the course can be calculated by using relative frequency. We can use the formula of probability to calculate the probability of the student passing the next assignment. Probability is calculated as the ratio of the number of favorable outcomes to the total number of possible outcomes.
In this case, the number of favorable outcomes is seven because the student passed seven out of ten assignments. The total number of possible outcomes is ten because the student attempted ten assignments. Therefore, the probability of the student passing the next assignment is 7/10 or 0.7. This means that there is a 70% chance that the student will pass the next assignment.
In conclusion, the relative frequency of past events can be used to predict future events. Probability theory can be used to calculate the probability of an event occurring in future events. By using the formula of probability, we can calculate the probability of an event occurring based on the relative frequency of past events. In the given example, the probability of the student passing the next assignment is calculated as 0.7 or 70%.
To know more about probability theory visit:
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Which is the solution to the inequality?
y + 15 <3
y<-12
y>-12
y < 18
y > 18
Answers
Answer:
y < -12
Step-by-step explanation:
Subtract 12 from both sides:
y + 15 - 15 < 3 - 15
Simplify:
y < -12
Find the product: ( 5.49 x10^4 ) (6.17 x 10^5)
Answers
Answer:
668054.9
Step-by-step explanation:
5.49 x 10^4 = 51054.9
6.17 x 10^5 = 617000
61000 x 51054.9 = 668054.9
I could be wrong but hope this helps
Two lines that intersect to form right angles are
Answers
Answer:
Perpendicular Lines
Step-by-step explanation:
Hope this helps really not much to explain since its vocab!
if the volume of two cylinders are equal, then their surface areas must be equal. true or false
Answers
Answer:
False
V(cylinder 1) = π(6^2)(8) = 288π
V(cylinder 2) = π(4^2)(18) = 288π
S(cylinder 1) = 2π(6^2) + 2π(6)(8) = 168π
S(cylinder 2) = 2π(4^2) + 2π(4)(18) = 176π
x−2=3x−1 pls someone help
Answers
Answer:
x = - 1/2
Step-by-step explanation:
x - 2 = 3x - 1 We have to subtract x from both sides of the equation and we have to add 1 to both sides of the equation.
-1 = 2x Divide 2 from both sides of the equation
x = - 1/2 <-- This is your answer
Hope this helps!
Please help lol rrly fast thxxxxxx
Answers
Write an equation for each line.Equation of the line in the slope - intercept form is...?
Answers
Answer:
y=(-5/9)x+0.25
I please help with this question
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IXL learning diagnostic
Answers
Slanty-straight not sure though so plz confirm and hope this helps
g(x)=2x+1 evaluate the function above for g(6)
Answers
Answer:
G(6)=13
Step-by-step explanation:
G(6)=2(6)+1 or G(6)=12+1 which is 13 hope this helps ur welcome
Answer:
12
Step-by-step explanation:
g(6)=2(6)+1
=12+1
=13
A group of 12 students is deciding whether to go to the science center or the zoo. Science center tickets are 3 for $36.75 and zoo tickets are 4 for $51.
How much will a group of 12 students save by choosing the science center?
Answers
Answer:
use math papa
Step-by-step explanation:
Answer:
they will save 6$ hope this helps !!
