Mathematics High School

Please help out with this answer

Please Help Out With This Answer

Answers

Answer 1

Answer:

see below

Step-by-step explanation:

Hi!

[tex]\frac{1}{21-20} \left[\begin{array}{ccc}-3&10&\\2&-7&\end{array}\right][/tex]

(Determinant is 1 in this case)

Hence the inverse is:

[tex]\left[\begin{array}{ccc}-3&10\\2&-7&\\\end{array}\right][/tex]

Related Questions

Can someone please help me with math.

Answers

Answer:

D. (8,1)

Step-by-step explanation:

hope this helps :)

Find the value of x
48°
132°
132°
X°

Answers

Answer:

X°

Step-by-step explanation:

there’s no other clues to what it could be, and since it’s x it would be X°

Can you please help me I would appreciate it so much

Answers

Answer:

Below.

Step-by-step explanation:

The distributive property:

3(x + 4)

= 3*x + 3*4

= 3x + 12.

You are ' distributing 3 over the parentheses'

please help this is so confusing.

Answers

Answer:

6 ÷ 3 = -6/-3

(-3)/6 = 3 ÷ (-6) = -(3/6)

6/(-3) = -(6/3)

leftover: -3/-6

Is -2/3(-12b-6+9b-18) equivalent to 2(b+8)? Show your work.
please help.

Answers

Answer:

Step-by-step explanation:

-2/3(-3b-24) = 2(b+8)

6b/3+48/3 = 2b+16

2b+16 = 2b+16 => equivalent

Is -2/3(-12b-6+9b-18) equivalent to 2(b+8)?

To find out, simplify the left side.

Multiply every term in the parentheses by 2/3.

(8b + 4 - 6b + 12)

Simplify.

(2b + 16)

Factor out 2.

2(b + 8)

We conclude that -2/3(-12b-6+9b-18)

equals 2(b + 8).

Help againn!!!!! Will give 15 points

Answers

Answer:

1. 8x+10

2. 25x-7

Step-by-step explanation:

Answer:

1) 8x + 10

2) 25x - 7

What is the lateral surface of the triangular prism?

Answers

Answer:

5

Step-by-step explanation:

A farmer would like to estimate the mean amount of milk produced per day by his 300 cows. He selects a random sample of 15 cows and records the amount of milk produced (in gallons) by those cows. The dotplot shows the data. A dotplot. A number line labeled amount of milk (gallons) goes from 20 to 32. 20, 1; 21, 1; 22, 1; 23, 1; 24, 2; 25, 3; 26, 2; 27, 1; 28, 1; 29, 1; 31, 1. Are the conditions for constructing a t confidence interval met? No, the random condition is not met. No, the 10% condition is not met. No, the Normal/large sample condition is not met. Yes, the conditions for inference are met.

Answers

Wait did you already answer it ¯\_(ツ)_/¯

what is ( 9 x 2/3 ) x 2/3

Answers

Answer: The answer is 4

Anyone mind helping? 15 Points! :D

Answers

Answer:

(2x+8y)

(2x+2×4y)

2(x+4y)

The graph shown meets the conditions -3 ≤ y ≤ 3.
True or False

Answers

Answer:

true

Step-by-step explanation:

Seth can paint one picture in 2 1/2 hours. How many pictures can he paint in 17 1/2 hours?
A. 6
B. 7
C. 8
D. 9

Answers

Answer:

7

Step-by-step explanation:

17 times 60 is 1020

1020 plus 30 is 1050

2 times 60 is 120

120 plus 30 is 150

1050 divided by 150 is 7

Answer:

B.7

Step-by-step explanation:

17.5 divided by 2.5 is 7

HELP ME!!! 20 points!!

Answers

The answer for this question is 1,3,5

HELP ASAP!!!!!! thank youuu

Answers

Can you show the full picture

The approximated difference of 10,485 – 3,985 is ________ .

pls give answer

Answers

Answer:

The approximate difference between the two numbers are 6,500

Step-by-step explanation:

The computation is shown below:

As in the question it is asked the difference between the two numbers

And, the two numbers are 10,485 and 3,985

So, the approximate difference is

= 10,485 - 3,985

= 6,500

Hence, The approximate difference between the two numbers are 6,500

The same is considered and relevant too

help pls. it’s from khan academy

Answers

ANSWER: 7/6

step 1: Simplify both sides of the equation.
step 2:Subtract 2/3 from both sides.
step 3: Multiply both sides by 7/(-1).

Please help me. PLEASE

Answers

Answer:

Part A: (3, 2)

Part B: 5

Step-by-step explanation:

Point B of the parallelogram is the top right dot on the graph. In order to find its coordinate, we simply trace the dot's trajectory back to the x and y axis accordingly. If we look under the dot we see that its x-axis is 3 and if we look to the left of the dot we see that its y-axis is 2. Therefore, the coordinate of the fourth vertex B is (3, 2)

To calculate the length of side AB we simply count the number of squares between them, which looking at the graph we can see is 5 squares. Therefore the length of AB is 5

Solve the proportion.
7
b
21
18
b = [?]

Answers

Answer:

b = 6

Step-by-step explanation:

here's your solution

=> 7/21 = b/18

=> by cross multiplication

=> 21b = 7*18

=> b = 126/21

=> b = 6

hope it helps

Answer:

b = 6

Step-by-step explanation:

To find the answer, find the GCF of 7 and 21, which is 7, and divide it by 7/7 to get 1/3, now the equation is 1/3 = b/18. How many times does 3 multiply to get 18? 6, multiply the first side of the equation by 6/6 to get 6/18, now we have 6/18 = b/18, since they are the same, b = 6

A student at lynbrook high School are building a shape below to put in their school. What is the total area of the shape and square units?

Answers

Answer:

j8jjjhvvbbbvvbbbbvvvbbbbbb

40
Step-by-step explanation:
area= length times width
1 times 10= 10 times 2= 20
2 times 10=20
20+20=40

honestly i'm ready to give up, I need help but nobody's helping and it's extremely stressful so could someone please help. and not send a virus or po-rn- pic?

Answers

Answer:

b-d-e

Step-by-step explanation:

I think i could completly wrong

* someone sent u p-orn?*

Help help help help help help help help

Answers

Answer:

87,069.6

Step-by-step explanation:

R + c = 100
R= 14 + 3c

Answers

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bit.[tex]^{}[/tex]ly/3a8Nt8n

(c , r)= (43/2 , 157/2)

A plumbing contractor charges a fee of $100 a visit and an additional charge of $50 per hour. Which equation can be used to find the number of hours x he worked if he gets paid $950 for a day's work?

Answers

Answer:

100 + 50x = 950

100 - 100 + 50x = 950 - 100

50x = 850

50x/50 = 850/50

x = 17

Pls help!

What is 10% of 900?

Answers

Answer: 90 i hope this helps pls tell me if a m worun g

The answer is 90.............

Adam bought a fish aquarium worth $2,000 in the first week of the year. Its value depreciates by 3% per
week. What will the value of fish aquarium after 5 weeks?

Answers

Answer:

The answer is 1825.35

Step-by-step explanation:

Since the first week isn’t included, we only count 4 weeks.

So first, 2000 x 0.03 = 60

(By the way 0.03 is 3%)

2000 - 60 = 1940

Subtracting 2000 by 60 represents the amount of money the aquarium went down in that week.

Then, week 3:

1940 x 0.03 = 58.2

1940 - 58.2 = 1881.8

Now, the last week, week four:

1881.8 x 0.03 = 56.45

1881.8 - 56.45 = 1825.35.

Therefore, 1825.35 after 5 weeks.

In 4/5, 5 is the _____.

Answers

Answer:

denominator

Step-by-step explanation:

Answer:

it is the denominator

Step-by-step explanation:

(x + 1) (2x - 5) = 0

Answers

x=-1 (negative one)



(i need this part to post the answer so just ignore it lol)

1/6 into a decimal and percent WILL REPORT AND GIVE BRAINLYEST

Answers

Answer:

1/6 = 0.167 or 16%

Step-by-step explanation:

Okay, so to go from a fraction to a decimal, you really just have to put the dot in the right place:

1/6 = 0.167 (rounded)

So 1/6 is 0.167 as a decimal

So to find the percentage:

0.167 x 10 = 16.7

So 1/6 is 16.7%

hope this helps:)

Answer:

Decimal: 0.166666667

Percent: 16.6666667%

Step-by-step explanation:

First a decimal:

Divide 1 ÷ 6: 0.166666667

Now a percent, to convert decimals to percents multiply them by 100 and add the percent sign:

0.166666667 ⋅ 100 = 16.6666667%

Determine if the two figures are similar by using transformations

Answers

Step-by-step explanation:

they are the same because FIGH just the ENLARGEMENT of ABCD

plz answer correctly and thank you

Answers

Answer:

83

Step-by-step explanation:

get rid of decimals and become 2988/36

divide and get 83

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