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strojnjashka [21]

3 years ago

11

A home owner is building a fence around his backyard and needs to know how much material to buy. he would need to calculate ____

___________
a. area
b. perimeter
c. metric conversions

2 answers:

valkas [14]3 years ago

4 0

B.perimeter is the answer the perimeter is the outside of the house where the fence goes

Ainat [17]3 years ago

4 0

B . perimeter as that is the area around which would be the fence

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Find the length of the hypotenuse of a right triangle whose legs have lengths 4 and 8

Irina18 [472]

Ya gotta use the Pythagorean theorem :)

a² + b² = c² (reminder: c is the hypotenuse)

4² + 8² = c²

16 + 64 = 80

√80 = 8.94

H = 8.94

6 0

3 years ago

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

1. Solve for the missing angle measures. 1) b 2) b a = 750 c a c d d = 1040 Set 1 angles a and c are ___?___ and are also ___?__

Paha777 [63]

This is where you give up

5 0

3 years ago

Jada poured 3.7 liters of water into a partially-filled bucket. The bucket then contained 15.3 liters. Which diagram (A, B, or C

nalin [4]

Answer:

which ever diagram with 11.6 at the starting point

5 0

3 years ago

HELP PLEASE i just need the answer and if you could tell me how you did it I WILL GIVE 50 POINTS

lidiya [134]

Answer:

G 36

Step-by-step explanation:

Hope this helps. Pls give brainliest.

8 0

3 years ago