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3 years ago

The perimeter of a rectangle is 18 meters. If the length of the rectangle is 6 meters what is the width(in meters)?

Mathematics

1 answer:

Lerok [7]3 years ago

7 0

Answer: w- width

18=2(6+w)

18=12+2w

18-12=2w

6=2w

W=3 meters

Step-by-step explanation:

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HELP! ! easy work for a lot points! please help me!

kiruha [24]

Answer:

Provide a question pls :)

Step-by-step explanation:

Pls mark brainliest lol

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2 years ago

I need #14 done by tomorrow around 9-10:00. Thank you so much if you do. God bless you :3

Vinvika [58]

Answer:

A) $\frac{1}{5}$

B) - 5

C) Not Possible

D) 5

E) $\frac{-1}{5}$

Step-by-step explanation:

All integers are rational numbers. But not all rational numbers are integers.

All whole numbers are integers. But not all integers are whole numbers.

I am a rational number but not an integer. Located on the right of 0.

This means that it should be a positive number. Since, it is a rational number but not an integer, it should be of the form $\frac{p}{q}$ .

From, the options $\frac{1}{5}$ would fit this description.

I am a rational number and an integer but not a whole number.

This means that it should be a negative integer. Since, all positive integers and zero would be whole numbers. From the options, the answer would be -5.

I am a whole number but not an integer.

This is clearly not possible because all whole numbers are a subset of integers.

I am a rational number, a whole number and an integer.

This means it is a positive integer. 5 would fit this description.

I am a rational number but not an integer; located on the left side of 0.

This means it is a negative number. $-\frac{1}{5}$ should be the answer.

3 0

2 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

jeka94

by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

<u>Step-by-step explanation:</u>

Here we have , expression x2 + 20 = 2x or , $x^2 + 20 = 2x$ .

We know that Quadratic formula is :

$x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$

$x^2 + 20 = 2x$

⇒ $x^2-2x+20=0$

$a=1\\b=-2\\c=20$

Putting this value in equation $x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$ :

⇒ $x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$

⇒ $x = \frac{-(-2) \pm \sqrt{(-2)^{2}-4(1)(20)}}{2(1)}$

⇒ $x = \frac{2 \pm \sqrt{4-80}}{2}$

⇒ $x = (\frac{2 \pm 2i\sqrt{19}}{2})$

⇒ $x = 1 \pm (1)i\sqrt{19}}$

Therefore , by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

7 0

2 years ago

3x to the 2 power -17+2x+5-x

rewona [7]

Answer: $=3x^{2^{x-12}}$

Step-by-step explanation:

$3x^{2^{-17+2x+5-x}}$

Simplify:

$=3x^{2^{x-12}}$

5 0

2 years ago

Help me in math tasks please

Ivan

Answer:

1. 3/5 c

2. 7 c

3. 2/5 b

4. $3.24 c

5. -3.2 b

Step-by-step explanation:

2/5 + 1/5 = 3/5

a negative + a negative = a positive

2+5 = 7

terminating means the decimal ends. When u divide a & c they keep on going but 2/5 ends

divide 16.8 by 5.19 = 3.23 round up so 3.24

multiply the two together to get the answer

3 0

3 years ago