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3 years ago

Draw two lines inside the rectangle to split it into 1 trapezowym and 2 right angled triangles

Mathematics

1 answer:

cestrela7 [59]3 years ago

7 0

Answer:

Step-by-step explanation:

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PLEASE HELP

Sergeeva-Olga [200]

Answer:

y = 2

Step-by-step explanation:

I will solve this problem, using the elimination method.

-2(5x - 3y) = -11

-10x + 6y = 22

2x - 6y = -14

Subtract and divide for x

-8x = 8

x = -1

Input -1 into the equations

2(-1) - 6y = -14

-6y - 2 = -14

-6y = -12

y = 2

Thanks!

5 0

3 years ago

If x-y = 40 and x+y = 70, then what is the value of x squared -y squared ?

OlgaM077 [116]

Let's see what to do buddy...

____________________________

Reminder:

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

So we need to just Multiply above equations like this :

$x + y = 70$

$x - y = 40$

$(x + y)(x - y) = 70 \times 40$

${x}^{2} - {y}^{2} = 2800$

____________________________

And we're done.

Thanks for watching buddy good luck.

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7 0

4 years ago

A newly launched clothing line is rapidly increasing in popularity. Every month 20% more items of clothing are sold. If 70,800 i

prohojiy [21]

Answer:

212,400 items were sold in 10 months.

Step-by-step explanation:

Given:

Items sold this month = 70,800

Percent Increase in every month = 20%

We need to find number of items sold in coming 10 months.

Solution:

First we will find number of items increase in each month.

number of items increase in each month can be calculated by Percent Increase in every month multiplied by Items sold this month and the divided by 100.

number of items increase in each month = $\frac{20}{100} \times 70800 = 14,160$

Now we will find number of item sold in 10 months.

number of item sold in 10 months is equal to sum of Items sold this month and number of items increase in each month multiplied by 10.

framing in equation form we get;

number of item sold in 10 months = $70800+10\times 14160 = 212,400$

Hence 212,400 items were sold in 10 months.

8 0

4 years ago

One dollar can buy a bottle of mineral water two empty bottles can be exchanged for a bottle of mineral water question:how many

Vlad [161]

Step-by-step explanation:

If one dollar can buy a bottle of mineral water, then;

$1 = 1 bottle

To determine the amount of mineral water you can drink with at most 20 dollars, we will say;

$20 = x bottle

Solving both equality postulate;

$1 = 1 bottle

$20 = x bottle

Cross multiply

1 * x = 20 * 1

x = 20

Hence about 20 bottles of mineral drink can be bought with at most 20 dollars

8 0

3 years ago

Read 2 more answers

(5x^3-3x^4-2x-9x^2-2)+(3x^3+2x^2-5x-7)

Anika [276]

Answer:

-3x⁴ + 8x³ - 9x² - 7x - 9

General Formulas and Concepts:

Combining like terms

Step-by-step explanation:

Step 1: Define expression

(5x³ - 3x⁴ - 2x - 9x² - 2) + (3x³ + 2x² - 5x - 7)

Step 2: Simplify

Combine like terms (x³): -3x⁴ + 8x³ - 9x² - 2x - 5x - 2 - 7
Combine like terms (x): -3x⁴ + 8x³ - 9x² - 7x - 2 - 7
Combine like terms (constants): -3x⁴ + 8x³ - 9x² - 7x - 9

8 0

3 years ago