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3 years ago

Please help me!! Will give first and correct answer brainliest!!!

Mathematics

1 answer:

velikii [3]3 years ago

5 0

15 centimeters? ;)))))

You might be interested in

If the circumference is 3/2 pi what is the area

11111nata11111 [884]

Here is your answer

$\frac{9}{16} \pi \: {units}^{2}$

REASON:

Circumference(C)= 2πr

, where r is radius

Given

C= (3/2) π

So,

$2\pi \: r = \frac{3}{2}\pi$

$r = \frac{\frac{3}{2}\pi}{2\pi}$

$r = \frac{3}{4}$

Now,

$area = \pi {r}^{2}$

$= \pi \times { (\frac{3}{4}) }^{2}$

$= \frac{9}{16}\pi \: {unit}^{2}$

HOPE IT IS USEFUL

8 0

3 years ago

Find the diameter of the circle with the given circumference.use 3.14 for pi<br><br> C=23 cm

zvonat [6]

Answer:

7.324840764

Step-by-step explanation:

23/3.14=7.324840764

7 0

2 years ago

7/2 ≥ b + 9/5. and btw, the ones that has the slashes are fractions. :3

Ainat [17]

Answer:

I believe it's

* B. b<1 7/10

I'm sorry if its wrong

6 0

2 years ago

HELP WITH THIS EZ QUESTION

9966 [12]

Answer:

Step-by-step explanation:

$3+75t-16t^{2} =h\\\\$

we evaluate when t=2

$3+75(2)-16(2)^2=h\\\\3+150-64=h\\\\h=89$

so it's 89 feet

7 0

2 years ago

Read 2 more answers

Let sin A= -3/5 with 270°< A< 360°. Find the following.<br> sin A/2

GREYUIT [131]

Answer:

1/sqrt10

Step-by-step explanation:

1) Find out cosA using formula (cosA)^2+(sinA)^2=1

The module of cosA= sqrt (1- (-3/5)^2)= sqrt 16/25=4/5

So cosA=-4/5 or cosA=4/5.

Due to the condition 270degrees< A<360 degrees, 0<cosA<1 that's why cosA=4/5.

2) Find sinA/2 using a formula cosA= 1-2sinA/2*sinA/2 where cosA=4/5.

(sinA/2)^2= 0.1

sinA= sqrt 0.1= 1/ sqrt10 or sinA= - sqrt 0.1= -1/sqrt10

But 270°< A< 360°, then 270/2°<A/2<360/2°

135°<A/2<180°, so sinA/2 must be positive and the only correct answer is

sin A/2= 1/sqrt10

6 0

2 years ago