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3 years ago

Please help A and B plz

Mathematics

2 answers:

Zarrin [17]3 years ago

7 0

To solve the given problem you have to use these formula's.

Perimeter= length² + width²

Area=length×width

Elden [556K]3 years ago

6 0

Perimeter= length+length+width+width
Area=length×width
And then substitute..

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Samantha and her friends are going on a road trip that is 245 7/50 miles long. They have already driven 128 53/100. How much far

Luba_88 [7]

Answer:

They have to drive 182, 2820 miles more.

Step-by-step explanation:

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5 0

3 years ago

Read 2 more answers

An amusement park charges $3.50 for admission and $0.75 for each ride. Suppose you have $18. What is the maximum number of rides

fiasKO [112]

Answer:

19 rides

Step-by-step explanation:

First, you have to subtract the admission cost from the total amount you possess.

$18.00

- 3.50

------------

$14.50

Next, you must divide the amount left over ($14.50) by $0.75.

$14.50 ÷ $0.75

≈ 19.33..(repeating)

Since you can't go on 1/3 of a ride, the total number of rides you may go on is 19.

5 0

3 years ago

4) A salesperson is paid $60 per week plus $4.50 per sale. This week, the salesperson wants to earn at least $250. How many sale

sasho [114]

｡☆✼★ ━━━━━━━━━━━━━━ ☾

Subtract the $60 out of the total first

250 - 60 = 190

Divide this value by pay per sale:

190 / 4.50 = 42.2222

Thus, they must make 43 sales in order to meet the goal

Have A Nice Day ❤

Stay Brainly! ヅ

- Ally ✧

｡☆✼★ ━━━━━━━━━━━━━━ ☾

3 0

3 years ago

Find the inverse of the matrix <img src="https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D9%26-2%5C%5C-10%269%5C%5C

valentinak56 [21]

Answer:

The answer is (b)

Step-by-step explanation:

* Lets check how to find the inverse of the matrix,

its dimensions is 2 × 2

* To know if the inverse of the matrix exist find the determinant

- If its not equal 0, then it exist

* How to find the determinant

- It is the difference between the multiplication of

the diagonals of the matrix

Ex: If the matrix is $\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]$

its determinant = ad - bc

- After that lets swap the positions of a and d, put negatives

in front of b and c, and divide everything by the determinant

- The inverse will be $\left[\begin{array}{ccc}\frac{d}{ad-bc} &\frac{-b}{ad-bc}\\\frac{-c}{ad-bc} &\frac{a}{ad-bc}\end{array}\right]$

* Lets do that with our problem

∵ The determinant = (9 × 9) - (-2 × -10) = 81 - 20 = 61

- The determinant ≠ 0, then the inverse is exist

∴ The inverse is $\frac{1}{61}\left[\begin{array}{ccc}9&2\\10&9\end{array}\right]$ =

$\left[\begin{array}{ccc}\frac{9}{61}&\frac{2}{61}\\\frac{10}{61} &\frac{9}{61}\end{array}\right]$

* The answer is (b)

7 0

3 years ago

Pls help, and hurry. i will give anyone brainliest if you give the correct answer.

Anna11 [10]

Answer:

Two answers:

22 ≥ v

v ≤ 22

Step-by-step explanation:

It's the same as solving for a variable in an equality. Imagine it as 17 = v - 5 for a moment. Simplify by subtracting 5 from both sides and re-add the inequality sign. This can be easily done since we are not multiplying or dividing, just adding and subtracting.

4 0

3 years ago