2 years ago

Plssssss helppppppppp

Mathematics

1 answer:

madam [21]2 years ago

7 0

Answer:

$1,385.44 {ft}^{2}$

<h3>4th answer is correct</h3>

Step-by-step explanation:

$\pi {r}^{2} \\ \pi \times 21 \times 21 \\ = 1,385.44 {ft}^{2}$

You might be interested in

Are corresponding angles in similar figures congruent?

Gala2k [10]

Answer:

yes

Step-by-step explanation:

Only the lengths change, not the angles.

3 0

3 years ago

757.923 expanded form

tamaranim1 [39]

The expanded form is adding all the digits so the answer is
700+50+7+0.9+0.02+0.003

6 0

3 years ago

What is the solution to the equation below?<br><br><br><br> 0.5n = 6

Tcecarenko [31]

It's 12 because if you divide 6 by 0.5 you should get 12, so basically use the opposite operation.

Hope that helps!

3 0

2 years ago

What type of graph is best to use for making comparisons among data?

Svetach [21]

Answer: Bar graph :)

4 0

2 years ago

Help mee A scout troop are hiking in a forest. Starting from their base, they walk 4.2km south followed by 7.1km west. They want

slega [8]

Answer:

They should walk on a bearing of 59.4 degrees

Step-by-step explanation:

Given

$South = 4.2km$

$West = 7.1km$

Required

The bearing back to the base

The given question is illustrated with the attached image.

To do this, we simply calculate the measure of angle a using:

$\tan(a) = \frac{Opposite}{Adjacent}$

$\tan(a) = \frac{7.1}{4,2}$

$\tan(a) = 1.6905$

Take arctan of both sides

$a = \tan^{-1}(1.6905)$

$a = 59.4^o$

4 0

3 years ago