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
Sergio [31]
3 years ago
7

The radius of a circle is 15 inches. A chord is drawn 4 inches from the center of the circle. How long is the chord?

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Let X represent the length of the chord.

By using Pythagoras' Theorem:

4^2 + (X/2)^2 = 15^2

(X^2)/4 = 209

X^2 = 836

X = 28.91

You might be interested in
M – 2.3 – 0.7m = 1.6
posledela

Answer: m = 13 ;)

Step-by-step explanation:

5 0
3 years ago
I really need help and I have to show my work
Amanda [17]
10 lbs/$12= 1 lb/x dollars.
If you rewrite it up and down and not slanted, it would be clearer to understand, but anyways, you cross multiply:
12*1=12 
12/10= 1.2
So the answer is 1.2, if you put it on that bubble sheet, put 1, then a decimal, after the decimal 2, and then all 0's,.

8 0
3 years ago
the circumference of a circle is a(pi) units, and the area of the circle is b(pi) square units. If a=b, what is the radius of th
xxTIMURxx [149]

Answer:

the redius is 0 unit or 1/2^(1/2) unit.

8 0
3 years ago
How can x-(2/3)+(5/6) be solved for x in one step? Add (2/3) to both sides. Add (5/6) to both sides. Subtract (2/3) from both si
shutvik [7]

Subtract 2/3 from both sides.

8 0
3 years ago
Plz..... Solve this questions for me...
faust18 [17]

6.\\\text{We know}\ 9=3^2.\ \text{Therefore}\\\\9^2=(3^2)^2\\\\\text{use}\ (a^n)^m=a^{nm}\\\\9^2=(3^2)^2=3^{2\cdot2}=3^4\\\\\boxed{3^4=9^2}\\=================

7.\\METHOD\ 1:\\\\\sqrt{7^4}=\sqrt{7^{2\cdot2}}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(7^2)^2}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=\boxed{7^2}\\\\METHOD\ 2:\\\\\text{use}\ a^\frac{m}{n}=\sqrt[n]{a^m}\\\\\sqrt{7^4}=7^\frac{4}{2}=\boxed{7^2}\\=================

8.\\5^a\times5^b=5^{11}\\\\a)\\\text{use}\ a^n\times a^m=a^{n+m}\\\\5^a\times5^b=5^{a+b}\\\\5^{a+b}=5^{11}\Rightarrow a+b=11\\\\11\ \text{is odd. The sum of even and odd is odd. Therefore}\ a\ \text{and}\ b\ \text{can't be even.}\\--------------------\\\\b)\\5\ \text{solutions}\\\\11=5+6\\11=4+7\\11=3+8\\11=2+9\\11=1+10

3 0
3 years ago
Other questions:
  • The 6th graders are running the mile in physical education. Elian finishes the mile 2 minutes before Stacey who finished 1 minut
    5·1 answer
  • 1/8x=-5 solve the equation
    15·2 answers
  • What is the area of the figure?<br><br> Enter your answer in the box.<br><br> 400<br> in²
    7·2 answers
  • Se vendieron 50 camisetas a 10€ a cada una.¿ que beneficio se obtuvo si las camisetas se compraron a 7€ cada uno?
    13·1 answer
  • How do you do question 6
    10·1 answer
  • How do you get what x=
    7·1 answer
  • By comparing medians which person went to the movies the most per month
    10·1 answer
  • Jean works for the government and was conducting a survey to determine the income levels of a number of different neighborhoods
    10·1 answer
  • Susie's account balance is less than -64 dollars. Which of the following best describes this situation?
    6·2 answers
  • A pigeon can fly 800 meters in one minute. How far does a pigeon fly in 25 minutes?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!