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
galben [10]
3 years ago
6

Three real zeros

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0
Okay, let’s check the easy approach.

C=Circunference=2pi*r

We can arrange that as r=C/(2pi)

Okay, we know what the radius is. Nice!

Now, let’s take a look at the formula of the area. Just because we can.

A=Area=pi*r^2

Wait! If we get the radius, we can get the A! Wait again! We just found the radius! What a crazy random happen-stance!

It almost looks planned.

So, if you substitute the radius, you get

A=pi*[C/(2pi)]^2

And that’s it. Cool.
You might be interested in
Find the missing side.<br> 6 is A^2 <br>10 is B^2<br> what is the missing side​
topjm [15]

Answer:

8

Step-by-step explanation:

This is a right triangle, which fits the Pythagorean Theorem, a^2 +b^2 = c^2. The variables a, b, and c all are sides of the triangle, while a and b are the two legs and c is the hypothenuse.

In this problem, we see that 6 and x are the legs and 10 is the hypothenuse.    We put 6 as "a" and x as "b" (but it doesn't matter which is a and b) and 10 is c. Therefore, we have the equation:

6^2 + x^2 = 10^2

which further simplifies to:

36 + x^2 = 100

x^2 = 64

and so x would equal 8 (or -8, but it is impossible to have a side length of -8).

Therefore, the missing side is 8.  

7 0
3 years ago
Read 2 more answers
Find the unknown value in proportion 2.3/6.7 = 4.6/x <br> a)13.4<br>b)20.1<br>c)1.6<br>d)3.4
Dominik [7]

2.3/6.7 = 4.6/x

using cross products

2.3*x = 6.7 * 4.6

divide by 2.3

x = 6.7 * 4.6 / 2.3

x = 6.7 * 2

x = 13.4

Choice A

5 0
4 years ago
What interest rate is needed
KatRina [158]

Answer:

How to calculate interest rate

Step 1: To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. ...

I = Interest amount paid in a specific time period (month, year etc.)

P = Principle amount (the money before interest)

t = Time period involved.

r = Interest rate in decimal.

5 0
3 years ago
Helpppp!!! i really need help asap
goldfiish [28.3K]

Answer:

A. real numbers, rational numbers

Step-by-step explanation:

An integer is a whole number, -2/15 is not whole. It is real and rational.

3 0
3 years ago
If a 30 foot ladder is positioned so that the bottom of the ladder is 1/4 of its length away from the wall, how far up the wall
klio [65]

Answer:

7.5

Step-by-step explanation:

I divided 30 by 4 and got 7.5

3 0
3 years ago
Other questions:
  • Identify which row of Pascal's triangle will be used for expanding the given binomial expression (2x3 +
    11·2 answers
  • What is the equation of the parabola with vertex (-2,5) and an x-intercept of x = 3
    10·1 answer
  • If I have 18$ and $27 if I multiply it what would the answer be
    11·2 answers
  • Describe rotation in another way 83 degrees counter-clockwise
    15·1 answer
  • What is the GCF of 12 and 8
    11·2 answers
  • PLS HELP ME I NEED HELP
    10·1 answer
  • Someone please help!!
    5·2 answers
  • HELP PLSSS Function g is a transformation x of f(x) = 2 ^ x Select all the true statements about the functions. (F-|F.2.4)
    12·1 answer
  • Which of these graphs represents a proportional relationship?<br><br> please help me
    9·2 answers
  • Relative risk is an ideal form of measurement for a retrospective cohort study design because it allows researchers to recruit b
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!