All categories

2 years ago

PLEASE HELP ME!! GIVING BRAINLIEST AND 5 STARS

Mathematics

1 answer:

Marizza181 [45]2 years ago

6 0

4(x+2)=4x+8
2(x-1)=2x-2
2(x+1)=2x+2

You use disruptive property when solving equations like this.

You might be interested in

How many seconds will light leaving Los Angeles take to reach the following locations (a) San Francisco (about 500km), (b) Londo

kondor19780726 [428]

Answer:

a) It takes 0.0017s for the light to reach San Francisco.

b) It takes 0.033s for the light to reach London.

c) It takes 1.334s for the light to reach Mars.

d) It takes 149.7s for the light to reach Venus.

Step-by-step explanation:

Here we can solve this problem by using this following formula:

$s = \frac{d}{t}$

In which s is the speed(in km/s), d is the distance(in km) and t is the time(in s).

The light speed is 299 792 458 m / s = 299,792.458 km/s, so $s = 299,792.458$

(a) San Francisco (about 500km)

Find t when $d = 500$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{500}{t}$

$299,792.458t = 500$

$t = \frac{500}{299,792.458}$

$t = 0.0017s$

It takes 0.0017s for the light to reach San Francisco.

b) London(about 10,000km)

Find t when $d = 10,000$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{10,000}{t}$

$299,792.458t = 10,000$

$t = \frac{10,000}{299,792.458}$

$t = 0.033s$

It takes 0.033s for the light to reach London.

(c) the Moon (400,000km)

Find t when $d = 400,000$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{400,000}{t}$

$299,792.458t = 400,000$

$t = \frac{400,000}{299,792.458}$

$t = 1.334s$

It takes 1.334s for the light to reach Mars.

(d) Venus (0.3 A.U. from Earth at its closest approach).

Each A.U. has 149,59,7871 km.

So 0.3 A.U. = 0.3*(149,597,871) = 44,879,361.3. This means that $d = 44,879,361.3$ . So:

$s = \frac{d}{t}$

$299,792.458 = \frac{44,879,361.3}{t}$

$299,792.458t = 44,879,361.3$

$t = \frac{44,879,361.3}{299,792.458}$

$t = 149.7s$

It takes 149.7s for the light to reach Venus.

3 0

3 years ago

2343 x 23.56 + 94217.23452 / 21421 - 512

monitta

Answer:

54693.47836

Step-by-step explanation:

Order of operations PEMDAS

Do the multiplication and division first - each separately

Then add and subtract the answer you get to get the final answer.

5 0

3 years ago

Read 2 more answers

Y=x???need answers and an explanation

Lesechka [4]

Y= 2
every time y goes up it goes up by 2

-1+2=1
1+2=3
3+2=5

5 0

3 years ago

harry rolls a number cube what is the probability that he will roll an even number or a number greater than 4

kap26 [50]

The probability would be either 2/3 or 80%

4 0

4 years ago

Read 2 more answers

Find the solution of (x+2)^2 +2=6 by using square roots method

kogti [31]

Answer:

(x + 2)² +2 = 6
(x + 2)² = 4
√(x + 2)² = √4
x + 2 = ± 2
x = -2 ± 2
x = -4, x = 0

4 0

3 years ago