3 years ago

1 2 3 4 5 6 7 8 9 10

Mathematics

1 answer:

sammy [17]3 years ago

3 0

Step 1 should have been 27(6+30).

You might be interested in

Can somebody help me :

Naily [24]

Answer:

Step-by-step explanation:

Negative numbers are smaller than positive numbers.

3 0

3 years ago

Read 2 more answers

Given the following geometric sequence, find the common ratio: {16, 64, 256, ...}.

Anettt [7]

Answer:

The common ratio is 4

Step-by-step explanation:

We need to divide a term by the previous term to find the common ratio in a geometric sequence:

64 ÷ 16 = 4

256 ÷ 64 = 4

By doing it twice we can confirm that the common ratio is 4

8 0

3 years ago

Read 2 more answers

"Sam" and "Martha" are the local names for two lighthouses that guard a particularly dangerous part of the coast. Sam blinks eve

Hunter-Best [27]

Answer:

Sam and Martha will blink again in 24 seconds :)

4 0

3 years ago

Read 2 more answers

A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18 \pi18π18, pi

Whitepunk [10]

Answer:

$A=81\pi $ m^2$

Step-by-step explanation:

Circumference of the column $=18\pi $ meters$

Circumference of a circle $=2\pi r$

Therefore:

$2\pi r =18\pi $ meters\\2r=18\\r=18 \div 2\\$Radius, r=9 meters$

Area of a Circle $=\pi r^2$

Since radius of the cross section of the column =9 meters

Area of the cross section of the column

$=\pi *9^2\\=81\pi $ m^2$

5 0

3 years ago

Death Valley has an altitude that is below sea level. Which situation describes a hiker in Death Valley who hikes until he reach

Firdavs [7]

Answer: D

Step-by-step explanation:

Think of it logically: A and C are not below sea level so you can cross them out. And B doesn't work because if you decrease -10 by 10 you get -20. So, D is correct.

5 0

3 years ago

Read 2 more answers