3 years ago

Please help me with this

Mathematics

1 answer:

horrorfan [7]3 years ago

6 0

Answer:5

Step-by-step explanation:

You might be interested in

Find the value of r in the equation (-4½)r = 36.

WARRIOR [948]

R = -8 is the answer....

8 0

3 years ago

The St. Patrick's Day Parade has 214 floats in it. If each float is carrying

Leona [35]

Step-by-step explanation:

214

x12

--------

428

+2140

————

2568

6 0

3 years ago

Evaluate the following integral over the specified region. Assume (r comma theta )(r,θ) are polar coordinates. ModifyingBelow In

topjm [15]

Answer:

Step-by-step explanation:

We have to integrate the function

$16+x^2+y^2$ over the region

$1\leq r\leq 3\\0\leq \theta \leq \pi$

Let us convert into polar coordinates

x=cost : y = sint

Then we get dxdy = rdr dt

So we get the integral as

$\int \int _R (16+x^2+y^2)^2 dxdy\\= \int\limits^3_0 \int\limits^\pi_0( {16+r^2}^2) (r)drdt\\ =(t) (\frac{(16+r^2)^3}{6}$

Substitute the limits to get

Answer

= $(\pi-0) [\frac{1}{6} (25-16)\\=1.5 \pi$

4 0

4 years ago

a football game has 13 fans for every 7 players. if there are 540 more fans than players. how many players are there

Mademuasel [1]

For this problem, we can set up an equation. We will represent how many players there are as x. This is what our equation would look like:

13/7 = 540/x

Now we can multiply both sides by x:

13x/7 = 540

Now we multiply both sides by 7:

13x = 91

Now we simplify and divide 13 from both sides to get our final answer:

x = 7

8 0

3 years ago

Area of parts of circles

givi [52]

Area of semicircle = (πr²) ÷ 2

Area of semicircle:
= (3.14)(2)² ÷ 2

= (3.14)(4) ÷ 2

= 12.56/2

= 6.28

8 0

3 years ago