All categories

3 years ago

50 POINTS !!

Mathematics

1 answer:

Anna35 [415]3 years ago

7 0

Answer:

Step-by-step explanation:

Hope this helps u!!

You might be interested in

9 - ? = 8.82

stepan [7]

1.18 is the answer!

8 0

3 years ago

Read 2 more answers

If you are buying at item at a store for a price of $17, and there is a 8.7% tax added on top, what would be the total amount du

anyanavicka [17]

Answer:

$18.48

Step-by-step explanation:

To find a percentage you just multiply the amount x the percentage in decimal form.

17 x 0.087 = 1.479 tax

Then you add that number too the original total.

17+1.479 = 18.479

Then you round to the nearest cent.

18.48

Total:

$18.48

8 0

3 years ago

Read 2 more answers

Rounded to the thousands place :) thank you!! <br><br> 5e^3x – 4 = 31

Lerok [7]

Step-by-step explanation:

Add 4 to both sides: 5e^3x = 35, or

7 0

3 years ago

The coordinates of the vertices of a rectangle are (−3, 4) , (7, 2) , (6, −3) , and (−4, −1) . What is the perimeter of the rect

ki77a [65]

Answrer

Find out the what is the perimeter of the rectangle .

To prove

Now as shown in the figure.

Name the coordinates as.

A(−3, 4) ,B (7, 2) , C(6, −3) , and D(−4, −1) .

In rectangle opposite sides are equal.

Thus

AB = DC

AD = BC

Formula

$Disatnce\ formula = \sqrt{(x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2}}$

Now the points A(−3, 4) and B(7, 2)

$AB = \sqrt{(7- (-3))^{2} +(2- 4)^{2}}$

$AB = \sqrt{(10)^{2} +(-2)^{2}}$

$AB = \sqrt{100+4}$

$AB = \sqrt{104}$

$AB = 2\sqrt{26}\units$

Thus

$CD= 2\sqrt{26}\units$

Now the points

A (−3, 4) , D (−4, −1)

$AD = \sqrt{(-4 - (-3))^{2} +(-1- 4)^{2}}$

$AD = \sqrt{(-1)^{2} +(-5)^{2}}$

$AD = \sqrt{1 + 25}$

$AD = \sqrt{26}\units$

Thus

$BC = \sqrt{26}\units$

Formula

Perimeter of rectangle = 2 (Length + Breadth)

Here

$Length = 2\sqrt{26}\ units$

$Breadth = \sqrt{26}\ units$

$Perimeter\ of\ rectangle = 2(2\sqrt{26} +\sqrt{26})$

$Perimeter\ of\ rectangle = 2(3\sqrt{26})$

$Perimeter\ of\ rectangle = 6\sqrt{26}$

$\sqrt{26} = 5.1 (Approx)$

$Perimeter\ of\ rectangle = 6\times 5.1$

Perimeter of a rectangle = 30.6 units.

Therefore the perimeter of a rectangle is 30.6 units.

8 0

3 years ago

Choose yes or no for each question will mark brainlist :) !!

Serga [27]

Answer:

1. No

2. Yes

3. No

4. Yes

Step-by-step explanation:

Hope this helped!

4 0

3 years ago