Help plz !!! Which equation shows that the product of a square matrix A and its identity matrix / is A?

Answer:

Step-by-step explanation:

The budget is $600.

Samantha spends the following amount:

Now, she plans to buy w outfits which cost $75.88 each.

The inequality for this is:

Solving this we get:

w = 1 is the only integer solution greater than zero

Answer:

I believe what your teacher is looking for is

"If I breathe when I sleep, then I sleep when I breathe."

"If I sleep when I breathe, then I breathe when I sleep."

Step-by-step explanation:

I hope I'm correct ^-^

Answer:

9

Step-by-step explanation:

Plug the -3 value into the equation.

3( -3 ) / -3 + 2

-9 / -1

negative divided by a negative gives a positive result

9

Answer:

2x^5log=1/6

Step-by-step explanation:

using the natural log (e), we were able to give the power of 5 to 2x and then take it out from the parantheses

Answer:

7.07

Step-by-step explanation:

d = √(x2 - x1)² + (y2 - y1)²

= √(1 - 0)² + (3 - 10)²

= √1)² + (-7)²

√(1) + (49)

√50

= 7.07

Answer:

b = c/3 + 2/3

Step-by-step explanation:

3b - 4/2 = c

the goal is to have b all by itself on one side of the equals sign.

start by moving the fraction over to where c is by adding.

3b = c + 4/2

adding -4/2 and +4/2 together makes it a 0 on the b side so there's no need to write anything in that space anymore.

Now 3b are next to each other which means they are multiplying. To move 3 we need to do the opposite (divide by 3 on both sides of the equal sign)

b = c/3 + 2/3

notice I divided both c and 4/2 by 3. 4/2 = 2 so I changed it to 2, then divided by 3

Answer: 3.5 years

Step-by-step explanation:  Let A be the salaries earned from company A for x years and B for company B for the same years.

A = 31000 + n*3000

B = 38000 + n*1000

To find the case where A = b, set them to each other and solve for n, the number of years.

31000 + n*3000 = 38000 + n*1000

2000n = 7000

n = (7000/2000) = 3.5 years.

A B

0 31000 38000

1 34000 39000

2 37000 40000

3 40000 41000

4 43000 42000

5 46000 43000

6 49000 44000

7 52000 45000

Answer:

Step-by-step explanation: 90 divided in to 30 is not 53 is is equal to 3

Answer:

125 mi po Hindi kopo sure

Answer:

1.) (0,5)

2.) (0,1)

3.) (6,4)

4.) (4,1)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given:

Lets the total amount of tabs = t

We have inequality:

Answer:

40beads

Step-by-step explanation:

For this number you are supposed to find the LCM of the three numbers given that is 8,5 and 10

Hope that this helpful.

Have a great day.

Answer:

31.2

Step-by-step explanation:

Change 60% into 0.6 by moving the decimal 2 points to the left

Multiply 0.6 by 78 to get 46.8

Subtract 78 and 46.8 to get 31.2 which is your answer

Answer:

slope is -2/3

Step-by-step explanation:

y = mx+b

m = slope

b = y-intercept

given: y = -2/3x

in this case we don't have a b so make it an automatic 0

now we have y = -2/3x +0

slope is m, so our slope is -2/3

Answer:

[tex]15.4\pi[/tex]

Step-by-step explanation:

[tex]C = 2\pi *r\\C = 2\pi *7.7\\C = 15.4\pi[/tex]

Answer:

C. Find the sum/difference.

1. 6 1/28

2. 7 2/9

3. 12 5/9

4. 9 14/15

5. 8 17/20

D. Add/Subtract

1. 9 2/15

2. 8 7/20

3. 8 9/10

4. 9 1/2

5. 7 5/9

E. Activity 3

1. 15 5/12 C.

2. 5 1/6 A.

3. 1 1/2 B.

4. 11 1/2 D.

5. N = 9 1/14 C.

F. Part 4

1. 16 7/40 C.

2. 16 7/15 A.

Answer:

x-intercept is (40/7, 0) and y-intercept is (0, 5)

Step-by-step explanation:

x-intercept ==> y-coordinate is 0 ==> y=0

y-intercept ==> x-coordinate is 0 ==> x=0

because the function is 7x + 8y = 40

when y = 0 ==> 7x = 40 ==> x = 40/7

so the x-intercept is (40/7, 0)

when x = 0 ==> 8y = 40 ==> y = 5

so the y-intercept is (0,5)

Answer:

9 units

Step-by-step explanation:

Y-coordinates are the same, so we just find the distance between the x-coordinates which is 2-(-7)=2+7=9 units

Answer:

4x+15

Step-by-step explanation:

Answer:

Hey girl! I got you.

Step-by-step explanation:

So! The angle x and z are congruent, meaning that they are equal, so you got that part correct. They are indeed 103. Next you need to find y, and in this case you need to do 180 - 103 because the line that holds both angle z and angle y is equal to 180.

180 - 103 = 77, you got that correct also!

You're on the right track, just explain in words how you know what each angle is equal to! Good luck! :)

Answer:

B, D, and E

Step-by-step explanation:

Answer: I believe the answer is 3.3 x 10^8

Answer:

Your answer would be 140.855891 or 140.9 rounded.

Step-by-step explanation:

3.86+

0.9876.31+

48.55126+

87.457=

140.855891 or 140.9 rounded to the nearest tenth

Answer:

18

Step-by-step explanation:

[tex] \\ \sf16 {x}^{0} + 2 {x}^{2} \times {y}^{ - 1} [/tex]

Now putting the values of x and y.

[tex] \\ \sf16 \times {2}^{0} + 2 \times {2}^{2} \times {4}^{ - 1} [/tex]

[tex] \\ \sf = 16 \times 1 + 2 \times 4 \times \frac{1}{ {4}}[/tex]

[tex] \\ \sf = 16 + 2[/tex]

[tex] \\ \sf = 18[/tex]

Note:

•If the power of a number is 0 then it's value will be 1.

•If the power of a number is negative then reciprocal the number to make the power positive.

Answer:

The answer will be -300

Step-by-step explanation:

Doing this in a calculator, it will give you -300

New born = 2.6 × 10¹⁰ cells.

Adult         = 4.94 × 10¹³ cells.

How many times more = adult cells ÷ newborn cells

                                      = 4.94 × 10¹³ cells ÷ 2.6 × 10¹⁰ cells

                                      =  1.9 × 10³ cells

The rate of change is also known as the slope or rise / run.

Slope Formula: (y2 - y1) / (x2 - x1)

First, we'll need two points that are on the line. You can choose any two points you want, as long as they are on the line.

Point 1 = (0, 1)

Point 2 = (-2, -3)

Then, we'll plug the two points into the formula and solve for the slope.

(-3 - 1) / (-2 - 0)

(-4) / (-2)

2

The rate of change of this line is 2.

Hope this helps!! :)

Answer: the rate of change is 2

Step-by-step explanation:

Answer: no idea

Step-by-step explanation: