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lubasha [3.4K]
4 years ago
15

Both circle A and circle B have a central angle measuring 135°. The ratio of the radius of circle A to the radius of circle B is

4 7 . If the length of the intercepted arc for circle A is 1 2 π, what is the length of the intercepted arc for circle B?
1
2
π
B)
2
3
π
C)
5
7
π
D)
7
8
π
Mathematics
2 answers:
Vlad [161]4 years ago
5 0
The answer on ustest is D) 7/8 .
Darina [25.2K]4 years ago
3 0
7/8π

The circles have the same central angle measures; therefore, the ratio of the intercepted arcs is the same as the ratio of the radii.

4/7 = 1/2π over x

x = 7/8π
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The slope of a line is -4, and the y-intercept is -3. What is the equation of the line written in slope-intercept form?
skad [1K]

The slope/intercept form of the equation of a straight line is

                    Y  =  (slope) X  +  (y-intercept) .

You know the slope and the y-intercept.
All you have to do is take that equation and fillum in.

6 0
4 years ago
Read 2 more answers
10 points please help guys ♡♡♡♡​
Nady [450]

Answer:

63 degrees

Step-by-step explanation:

It is an opposite angle so it the same angle

6 0
3 years ago
The sum of the ages of a mother and her son is 63, six years ago the mothers age was twice as old as her son. How old is the mot
Ad libitum [116K]

Answer:

40 years old

Step-by-step explanation:

Let's imagine a+b=63

63-12=51 (since they were both 6 years younger)

A is double B

34+17=51

34/2=17

You need to add the 6 years back onto the mothers age - 34+6=40

40 years old

5 0
2 years ago
assume the substance has a half-life of 11 years and the initial amount is 126 grams.How long will it be until only 15 % remains
Mumz [18]
(126) times (1/2 to the x/11 power) = 15% times 126

(1/2) to the x/11 power = 0.15

Take the log of both sides :

(x/11) times log(1/2) = log(0.15)

Multiply both sides by 11 :

'x' times log(1/2) = 11 x log(0.15)

Divide both sides by " log(1/2) " :

x = 11 x log(0.15)/log(1/2) = <em><u>30.107 years</u></em> (rounded)

That's the time it takes for <em><u>any-size</u></em> sample of this substance
to decay to 15% of its original size.


5 0
3 years ago
NEED HELP ASAP PLEASEEEEEEEEEE
tester [92]

Answer:

1. No

2. Yes

3. No

4. Yes

5. No

Explanation:

If a data point has the same x coordinate of another data point. Then it's not a function.

PS:

Can I have Brainliest?

5 0
3 years ago
Read 2 more answers
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