Answers
Answer:
[tex] \red{ \bold{\begin{bmatrix} - 4 & 26 & - 5 \\ \\6 & 17& - 8\end{bmatrix} }}[/tex]
Step-by-step explanation:
[tex] \begin{bmatrix} 4 & 19 & - 5\\ \\ 7 & 0 & - 14\end{bmatrix} + \begin{bmatrix} -8 & 7 & 0\\ \\ - 1 & 17 & 6\end{bmatrix} \\ \\ = \begin{bmatrix} 4 + ( - 8) & 19 + 7 & - 5 + 0\\ \\ 7 + ( - 1) & 0 + 17& - 14 + 6\end{bmatrix} \\ \\ = \begin{bmatrix} 4 - 8 & 19 + 7 & - 5 + 0\\ \\ 7 - 1 & 0 + 17& - 14 + 6\end{bmatrix} \\ \\ \purple{ \bold{ = \begin{bmatrix} - 4 & 26 & - 5 \\ \\6 & 17& - 8\end{bmatrix} }}[/tex]
[tex]\left[\begin{array}{ccc}-4&26 &-5 \\6&17&-8\\\end{array}\right][/tex] is the sum of the given matrices.
What is matrices?There are columns and rows in a matrix. The dimensions or size of a matrix are determined by these rows and columns. There are many different kinds of matrices, including row, column, null, square, diagonal, upper triangular, lower triangular, symmetric, and antisymmetric matrices.
Given two matrices,
[tex]\left[\begin{array}{ccc}4&19&-5\\7&0&-14\\\end{array}\right][/tex] and [tex]\left[\begin{array}{ccc}-8&7&-0\\-1&17&6\\\end{array}\right][/tex]
We need to find the sum of this given matrices
The only matrices that may be added together are ones of the same size. As a result, you can only add matrices if they are both m × n. For example, you can add two or more 3 × 3, 1 × 2, or 5 × 4 matrices. You cannot add a 2 × 3 and a 3 × 2 matrix, a 4 × 4 and a 3 × 3, etc. The number of rows and columns of all the matrices being added must exactly match.
thus,
Sum of matrices = [tex]\left[\begin{array}{ccc}4 -8&19 +7 &-5 + 0\\7 -1&0 + 17&-14 +6\\\end{array}\right][/tex]
Sum of matrices = [tex]\left[\begin{array}{ccc}-4&26 &-5 \\6&17&-8\\\end{array}\right][/tex]
Therefore, option D is correct.
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Related Questions
lol please help me !
Answers
Answer: (a + 2)(a - 2) which is the first answer choice
=========================================================
Explanation:
Use the difference of squares factoring rule which is x^2 - y^2 = (x+y)(x-y)
In this case, x = a and y = 2
x^2 - y^2 = (x+y)(x-y)
a^2 - 2^2 = (a+2)(a-2)
a^2 - 4 = (a+2)(a-2)
5 times a number is 14 less than the square of that number. Find the negative solution.
Answers
Answer:
x=-2
Step-by-step explanation:
5x=x^2 - 14
x^2-5x-14=0
(x-7)(x+2)=0
x=7,-2
Please help ASAP if you know how. Thanks so much
Answers
Answer:
The answer is C.
Step-by-step explanation:
You should plug the numbers into the quadratic formula to get the answer.
Answer:
A: -5 ± √ 17 / 2
Step-by-step explanation:
Consider the following equations:
ax^2 + bx + c - This is an equation you use in understanding quadratic functions.
x= (−b± √b^2−4ac) / 2a - This is the quadratic formula used to solve quadratic functions
So: ax^2 + bx + c = x^2 + 5x + 2
SOLVE:
-(5) ± √ 5^2−4(1)(2)) / 2(1)
= -5 ± √ 25− 8 / 2
= -5 ± √ 25− 8 / 2
= -5 ± √ 17 / 2
what is j+m, j times m and j divided by m
Answers
Answer:
j + m
jm
[tex]\frac{j}{m}[/tex]
Step-by-step explanation:
We have j and m and are asked to add, multiply and divide them both.
When it comes to adding, its all about like terms, if the terms are not alike meaning ending in the same variable they cannot be added.
Therefore j + m is equal to just j + m.
Now for multiplying, this is free rule, you can freely multiply any variable you want without reprecussion.
Therefore, j * m is equal to jm.
Now for dividing, this works like adding, where you can divide only if the terms are the same, since j and m are not the same. J divided by M is equal to [tex]\frac{j}{m}[/tex]
Complete the table to show an equivalent ratio where the total amount is 100 grams.
Answers
Answer:32
Step-by-step explanation:
i did it, just multiply by 4
The percent of 32% of her daily amount of fiber, she has at breakfast.
What is ratio?The numerical relationship between two values that demonstrates how frequently one value contains or is contained within another.
Given:
Keesha keeps track of the fiber she eats to make sure she gets enough each day.
Her breakfast contains 8 grams of fiber, and her recommended daily amount is 25 grams per day.
Keesha wants to know what percent of her daily amount of fiber she has at breakfast.
The table to show an equivalent ratio where the total amount is 100 grams.
Let n be the required value.
That means,
8/25 = n/100
n = 800/25
n = 32
Therefore, her daily amount of fiber is 32%.
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-3x =21
1/3x =6
-1/2x =-7
Answers
Divide -3 from both sides and you get x = -7
1/3x = 6
Divide 1/3 from both sides and you get x = 18
-1/2x = -7
Divide -1/2 from both sides and you get x = 14 (you get a positive answer from 2 negatives)
Dividing 1/3 is just multiplying by 3, and dividing -1/2 is just multiplying by -2
I need HELPPPPPP some one please help me :(
Answers
Answer:
well i just know its 9 out of 27
Step-by-step explanation:
Answer:
33.33% of the pizzas DO NOT have pepperoni.
Step-by-step explanation:
27 - 18 = 9
9/27 = ?%
33.33% = ?%
If the Pixie Sticks cost 4.50 per pound and Nicholas spends 8.10, How many pounds did he purchase?
Answers
Answer:
Step-by-step explanation:
Nicholas has purchased 1.8 pounds of pixie sticks.
Jane has purchased 3.0 pounds of Jolly ranchers.
Step-by-step explanation:
Cost of 1 pounds of pixie sticks = $4.50
Let the number of pixie sticks = x
Total money spend on x pounds of pixie sticks = $8.10
Nicholas has purchased 1.8 pounds of pixie sticks.
Cost of 1 pounds of Jolly ranchers = $3.25
Let the number of Jolly ranchers = y
Total money spend on y pounds of Jolly ranchers = $9.75
Jane has purchased 3.0 pounds of Jolly ranchers.
2.8.9 An e-mail filter is planned to separate valid e-mails from spam. The word free occurs in 60% of the spam messages and only 4% of the valid messages. Also, 20% of the messages are spam. Determine the following probabilities: a. The message contains free. b. The message is spam given that it contains free. c. The message is valid given that it does not contain free.
Answers
Answer:
.
Step-by-step explanation:
Answer:
ਜੇ ਤੁਹਾਡਾ ਆਪਸ ਵਿੱਚ ਭੜਕਣਾ ਵੀ ਬਹੁਤ ਚੰਗਾ ਹੁੰਦਾ ਹੈ,
Step-by-step explanation:
solve the system of equations 5x+3y=5 5x+7y=25
Answers
Answer:
(-2,5)
Step-by-step explanation:
2. What is an interest that is computed on the
principal and then added to it?
A. Simple Interest
B. Compound Interest
C. Interest
D. Principal
Answers
Answer:
Step-by-step explanation:
5 km
5 km
7 km
Find the surface area
Answers
Answer:
190km
Step-by-step explanation:
2(wl + hl + hw)
2 · (5 · 7 + 5 · 7 + 5 · 5) = 190
good luck, i hope this helps :)
Aiden is eating from the box of cereal
shown. Find the total surface area of the box.
cereal
13.5 in.
2.5 in.
8 in.
Total surface area?
Answers
Answer:
323.5 square inches
Step-by-step explanation:
The cereal box is not shown. However, the given details are enough to arrive at a solution
[tex]Length = 13.5in[/tex]
[tex]Width = 2.5in[/tex]
[tex]Height = 8in[/tex]
Required
The total surface area (TSA)
This is calculated as:
[tex]TSA = 2 * (Length * Width + Length * Height + Width * Height)[/tex]
[tex]TSA = 2 * (13.5 * 2.5 + 13.5 * 8 + 2.5 * 8)[/tex]
[tex]TSA = 2 * (161.75)[/tex]
[tex]TSA = 323.5[/tex]
Hence, the total surface area is 323.5 square inches
Solve the system of equations using elimination
Answers
Answer:
(1, 3).
Step-by-step explanation:
x + 2y = 7
3x - 2y = -3
Adding the 2 equations will eliminate y:
4x = 4
x = 4/4
x = 1
Plug x = 1 into the first equation:
1 + 2y = 7
2y = 6
y = 3.
Please help me please ! Also the answer is not a
Answers
Answer:
The answer is c
Step-by-step explanation: Since both terms are perfect squares, factor using the difference of squares formula to get the answer i hope this helps
Hey there!
The answer is C.
To factor an expression, you take the root (same as exponent variable has) of the terms and put them into parantheses. We can also check the choices to see if they're correct by solving them.
A is incorrect, because if you solve it, you would have [tex]x^2-121[/tex]
B is incorrect, because if you solve it, you would have [tex]121x-x^2[/tex]
C is correct, because if you solve it, you would have [tex]121-x^2[/tex]
D is incorrect, because it CAN be factored.
Have a super awesome day! :)
What is the equation of the line that passes through the point (−1,−1) and has a slope of −6?
Answers
Answer: y= -6x -7
Step-by-step explanation:
Point slope formula : y-y1=m(x-x1)
y- (-1)=-6(x- (-1))
y+1= -6(x+1)
y+1= -6x-6
y+1-1=-6x-6-1
y=-6x-7
Standard from 6x+y=7
Find the value needed for the “?” to make the equation true.
1/x^? = x^6
Answer: ? =__
Answers
Answer:
[tex]? =-6[/tex]
Step-by-step explanation:
Given
[tex]\frac{1}{x^?} = x^6[/tex]
Required
Find ?
Apply law of indices
[tex]x^{-?} = x^6[/tex]
Cancel x on both sides
[tex]-? = 6[/tex]
Multiply both sides by -1
[tex]-1*-? = 6*-1[/tex]
[tex]? =-6[/tex]
In a lab experiment, 5400 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 4 hours. How many bacteria would there be after 17 hours, to the nearest whole number?
Answers
Step-by-step explanation:
In 4 hours 5400 bacteria becomes 5400*2 = 10800
Therefore in 17 hours, it will become
17*10800/4
= 183600/4
= 45900
Answer:
1.62
Step-by-step explanation:
hope it helps god bless
Edie is trying to decide which printing service to use to publish her neighborhood newsletter . The first printer charges a $5.00 fee plus $ 0.25 per full color page, while the second charges a $10 fee plus $0.20 per full color page . Over what range of pages will Edie pay less by using the first printer ? A. Less than 100 pages B. More than 100 pages C. Less than 50 pages D. More than 50 pages E. More than 100 pages but less than 200 pages
Answers
Answer:
A) less than 100 pages
Step-by-step explanation:
p = # pages
Printer 1:
y = .25p + 5
Printer 2:
y = .20p + 10
.25p + 5 < .20p + 10
.05p + 5 < 10
.05p < 5
p < 5/.05
p < 100
- Functions F and A are defined by these equations below. Which function has a greater value when x is 2.5?
A. F(x) = 80-15x
B. A(x) = 25 + 10x
Answers
Answer:
The answer is D- A(x)=25+10x
Step-by-step explanation:
I cant really explain how i got the answer but i got it right
The function A(x) has greater value then F(x) for x = 2.5.
What is a function?A function is a relation between a independent variable and a dependent variable such that the value of dependent variable depends upon the independent one.
Given are two functions of [x] as follows -
F(x) = 80 - 15x
A(x) = 25 + 10x
We have the following functions -
F(x) = 80 - 15x
A(x) = 25 + 10x
Now, we will evaluate each function at x = 2.5.
F(2.5) = 80 - 15 x 2.5 = 42.5
and
A(2.5) = 25 + 10 x 2.5 = 50
It can be seen that A(2.5) > F(2.5)
So, the function A(x) has greater value then F(x) at x = 2.5
Therefore, the function A(x) has greater value then F(x) for x = 2.5.
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Solve 17 x 5/8 as a mixed number
Answers
Answer:
it's 10 and 5/8
Step-by-step explanation:
I hope this has helped you
The solution of expression [tex]17 \times \dfrac{5}{8}[/tex] in the form of mixed number would be [tex]10 \dfrac{5}{8}[/tex].
Used the concept of multiplication that states,
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that the expression to solve,
[tex]17 \times \dfrac{5}{8}[/tex]
Now multiply separately with the numbers given,
[tex]17 \times \dfrac{5}{8}[/tex]
[tex]\dfrac{85}{8}[/tex]
It can be written as,
[tex]10 \dfrac{5}{8}[/tex]
Therefore, the mixed form of solution is [tex]10 \dfrac{5}{8}[/tex].
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The diameter of a round rug is 42 inches. What is the approximate area of the rug?
A. 5,539 square inches
B. 10 square inches
C. 38 square inches
D. 1,385 square inches
Answers
Answer:
D, It would be 1,385 Square Inches
Step-by-step explanation:
In AMNO, the measure of Z0=90°, OM = 1.7 feet, and NO = 6.7 feet. Find the measure of ZN to the nearest degree.
Answers
Answer:
14°
Step-by-step explanation:
deltamath
2x + 3 – 4 = 5x - 7
2
-2
- 9
9
Answers
2x + 3 - 4 = 5x - 7
=> 2x + 3 - 4 + 7 = 5x
=> 3 - 4 + 7 = 5x - 2x
=> 3 - 4 + 7 = 3x
=> -1 + 7 = 3x
=> 6 = 3x
=> 6/3 = x
=> 2 = x
Step-by-step explanation:
2x + 3 - 4 = 5x - 7 2x - 1 = 5x - 7 (-1 + 7 )= 5x - 2x6 = 3x 6 ÷ 3 = x2 = xMARK ME AS BRAINLISTPLEASE HELP ITS URGENT
DONT GUESS
WILL MARK BRAINLIEST
Answers
Answer:
Listed below:
Step-by-step explanation:
P: 192
A:2079
B. Area
C. Perimeter
Hope this helps :)
Please help me with this work
Answers
Answer:
1. (5y) = 35
2. (6y) = 1
3. (4y) = 2
4. (11y) = 15
5. 18, 24, 42, 60
The number of miles Henry rides his bike in 10 days is 60miles
Step-by-step explanation:
The family size bottle of sunscreen holds 12 fluid ounces (fl oz) of sunscreen. the regular bottle holds 75% less. how many fewer fluid ounces does the regular bottle hold?
Answers
Answer:
9
Step-by-step explanation:
12×0.75=9
Classify each real number. List all the subsets in which the number belongs.
Answers
Answer:
Step-by-step explanation:
1-integer
2-rational
3-whole
4- irrational
In a group of 38 pupils, 13 play the flute only.
7 play the piano only.
5 play neither instrument.
How many pupils play both instruments?
Answers
Refer to the figure to answer the following.
5
F
m 2 BFG = (0.5)(mCD + mGB)
True False
Please help
Answers
Answer:
True
Step-by-step explanation:
∠BFG is an interior angle, then:
m∠BFG=[m arc(GB) + m arc(CD)] / 2
or in other words
m∠BFG = (0.5)(m arc CD + m arc GB)
Answer:
TRUEEEEEEEEEEEEEEEEEEEEEEE
Step-by-step explanation: