All categories

3 years ago

Need help on precalculus

Mathematics

1 answer:

murzikaleks [220]3 years ago

7 0

Answer:

arc = 15π

Step-by-step explanation:

The arc is calculated as

arc = circumference of circle × fraction of circle

= 2πr × $\frac{225}{360}$ ( r is the radius )

given diameter = 24 then r = 24 ÷ 2 = 12

arc = 2π × 12 × $\frac{5}{8}$

= 24π × $\frac{5}{8}$

= 3π × 5

= 15π

You might be interested in

What is the value of 'n' in n x 4/5 = 3/4

Tanzania [10]

N=15/16
hope helps
HELP ME NOW PLZ STUCK ON THE LAST QUESTION

5 0

3 years ago

What is the real part of the following complex number? -3+ 2iV2

Marina86 [1]

Answer:

Option (3)

Step-by-step explanation:

If a complex number is in the form of (a + ib), real part of the complex number is 'a' and imaginary part is 'b'.

Given complex number is (-3 + 2i )

Comparing this number with (a + ib), real part of the number will be (-3) and imaginary part of the number will be 2.

Option (3) will be the answer.

3 0

3 years ago

Find area of the circle. thanks

liberstina [14]

Answer:24

Step-by-step explanation:

12 times 12

6 0

3 years ago

Read 2 more answers

Please simplify with a explanation!~

PilotLPTM [1.2K]

Answer:

-4y + 20

Step-by-step explanation:

4(-y+5)

What we need to do here is get rid of the parentheses, which can be achieved through multiplication.

This is another way of saying 4 times -y plus 4 times 5.

Let's break the the parentheses down into 2 separate formulas.

4(-y) and 4(5)

Now we can multiply these two together to get -4y and +20. When combined, we get -4y +20.

6 0

3 years ago

Use logarithms to solve each equation

Tomtit [17]

We have this equation:

$2x^{\frac{9}{8}} = 111$

and we need to find the value of x.

First of all, we multiply the whole equation for 1/2, so our goal is to isolate x, therefore:

$x^{\frac{9}{8}}=\frac{111}{2}$

Next step we must do is to apply logarithms:

$logx^{\frac{9}{8}} = log(\frac{111}{2})$

Next, we have to apply identities and then to solve the equation:

$\frac{9}{8}logx = log(\frac{111}{2})$
$logx = \frac{8}{9}log(\frac{111}{2})$
$logx = 1.5504$
$10^{logx} = 10^{1.5504}$

Finally, we have the value of x which was our goal. This is the answer for the question above:

$x= 35.5140$

The answer is D.

3 0

4 years ago