1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alukav5142 [94]
3 years ago
11

∠ACB is inscribed in semicircle ACB of a circle with centre O then m∠ACB =

Mathematics
2 answers:
natita [175]3 years ago
7 0

Answer:

∠ACB is inscribed in semicircle ACB of a circle with centre O then m∠ACB = 90°.

Zolol [24]3 years ago
6 0
<h2>Answer:</h2>

[C] 90°.

<u>It is Because ∠ACB is formed by the diameter of the semicircle</u>.

<u>And we already know that, the angle formed by diameter measure 90° to the circle or semicircle</u>.

You might be interested in
The South Coast Air Basin (Los Angeles, Orange, and San Bernardino counties) does not meet the air quality standards for carbon
Archy [21]

Answer:

0.2225 gr/mile

Step-by-step explanation:

Let's work out first the amount of CO sent out in 1990.

The population we estimated in 12.5 million people with a total of driven miles per year of about  

12.5 million*8,700 = 108,750 million miles.

With an CO emission factor of 0.9 g per mile, we would have a total of CO emitted rounding 0.9*180,750 = 97,875 million grams

Now, we must estimate the population for 2020.

Since we are assuming an exponential growth, the population in year t is given by a function

\bf P(t)= Ce^{kt}

where C and k are constants to be determined.

We can take 1980 as year 0. This way calculations are lighter. 1990 is year 10 and 2020 is year 20.

So P(0) = 10.3 and C=10.3

So far we have

\bf P(t)= 10.3e^{kt}

Given that P(10)=12.5

\bf 10.3e^{k*10}=12.5\rightarrow e^{10k}=\frac{12.5}{10.3}=1.21359\rightarrow \\10k=log(1.21359)\rightarrow k=0.01936

And the function that models the population growth is

\bf P(t)= 10.3e^{0.01936t}

We need P(20)

\bf P(20)= 10.3e^{0.01936*20}=10.3e^{0.38717}=15.17\;million

If the miles driven per person per year remains constant at 8700 mi/yr.person, then we have a total miles driven of

15.17*8,700=131,979 million miles, so the CO emitted would be 0.9*131,979=118,781.1 million grams.

The 30% of the CO sent out in 1990 is 0.3*97,875=29,362.5 million grams.

We must reduce 118,781.1 down to 29,362.5

Hence the new CO emission factor would be

29,362.5/131,979 = 0.2225 gr/mile

6 0
3 years ago
Find the simple interest for :<br> $668,5%, 2 years
Mkey [24]

Answer: 2 years

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Please help if you know the answer
worty [1.4K]
It's C. When you're dividing g(x) by f(x), you get the equations in both B. and C., but C is more correct because you can't have x=-1/3 because the function is undefined at that number (you can't have the denominator equal 0)
3 0
3 years ago
Read 2 more answers
2 x 5 x 0 please help
igor_vitrenko [27]

Answer: 0

Step-by-step explanation: hope it helps

8 0
2 years ago
Read 2 more answers
What is the difference between d and 7?
Goryan [66]

Answer:

d - 7

Step-by-step explanation:

The word "difference" tells us that we will be using subtraction. Also, subtraction is not the same if you reverse the terms like, x - 2 and 2 - x are not the same. In your question it say "d and 7" so that's the order we use in the algebraic expression.

3 0
1 year ago
Other questions:
  • Describe the behavior of the graph at the x-intercepts for the functions f(x)=(2x-7)^7 (x+3)^4. Be sure to identify each x-inter
    9·1 answer
  • X^2÷x-y+y^2÷y-x simplify
    13·1 answer
  • Just for those two for the points
    5·2 answers
  • Find the root 2x2 + x-4 = 0
    7·1 answer
  • Have 20mins left please hurry
    15·2 answers
  • What is the value of the expression
    12·2 answers
  • Help will give crown
    12·1 answer
  • Can someone tell me what I did wrong.
    15·2 answers
  • Karen and Ann share the cost of a DVD that costs $29.90
    15·1 answer
  • 2(h-8) -h=h-16<br>A. 8<br>B. -8<br>C. No solution<br>D. Infinitely many solutions​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!