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2 years ago

I WILL GIVE BRAINLIEST IF YOU EXPLAIN YOUR ANSWER!!

Mathematics

2 answers:

LiRa [457]2 years ago

5 0

Answer:

380.13

Step-by-step explanation:

pi r^2

pi*11^2

pi*121

3.1415926*121

Sav [38]2 years ago

4 0

Answer:

379.94 sq. ft.

Step-by-step explanation:

HOPE THIS HELPS

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Leanne multiplied 8 x 4.3 and got 32.24. Is Leanne correct?Use an area model to explain your answer

dlinn [17]

Answer:

No, not correct.

Step-by-step explanation:

Note that 8 * 4.3 can be broken up as follows:

8 * (4 + 0.3)

and that 4*8 =32, and that 0.3(8) = 2.4 (not 0.24).

Then 8 * (4 + 0.3) becomes 32 + 2.4 = 34.4

3 0

3 years ago

Plz help it would mean a lot

lina2011 [118]

Answer:

proportional/equal

Step-by-step explanation:

doesnt need

6 0

2 years ago

Tan 1.1 – tan 4.6/

VladimirAG [237]

The value of the given equation is –0.37458.

Solution:

Given equation is:

$$\frac{\tan 1.1-\tan 4.6}{1+\tan 1.1 \tan 4.6}$

Let us first find the values.

The value of tan 1.1 = 1.96475

The value of tan 4.6 = 8.86017

Substitute these values in the given equation.

$$\frac{\tan 1.1-\tan 4.6}{1+\tan 1.1 \tan 4.6}$

$$=\frac{1.96475-8.86017}{1+1.96475 \times 8.86017}$

$$=\frac{-6.89542}{1+17.4080}$

$$=\frac{-6.89542}{18.4080}$

= –0.37458

$$\frac{\tan 1.1-\tan 4.6}{1+\tan 1.1 \tan 4.6}=-0.37458$

Hence the value of the given equation is –0.37458.

7 0

3 years ago

Martiza remembers her pin because it is between 1000 and 1500 and it is a product of two consecutive prime numbers what is her p

Anna71 [15]

Answer:

Her pin must be 1147

Step-by-step explanation:

A little trick I have up my sleeve when I have these kind of questions is that I find the square root of each number, then find what is prime.

$\sqrt{1000} = 31.6$

$\sqrt{1500} = 38.7$

Since the only prime numbers in the range of 31 and 38 is 31 and 37.

We can then multiply 31 by 37 to get 1147.

6 0

3 years ago

You need to cover the playground of a child development center with mulch. the playground is 125 feet long and 60 feet wide. you

kirill [66]

The answer is 139 cubic yards

This mulch will be of cylindrical shape.
The volume (V) of a cylinder is:
V = l · w · h (l - length, w - width, h - height (in our example, height = depth)

It is known:
l = 125 feet
w = 60 feet
h = 6 inches = 0.5 feet

V = l · w · h = 125 · 60 · 0.5 = 3750 feet³

Since 1 cubic foot is 0.037 cubic yards, 3750 cubic feet are 139 cubic yards:
0.037 · 3750 feet³ = 138.75 cubic yards ≈ 139 cubic yards

4 0

3 years ago