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
Anastasy [175]
2 years ago
14

I Need the answer for these 3

Mathematics
1 answer:
11111nata11111 [884]2 years ago
5 0

Here you go enjoy

Have a good rest of your night

You might be interested in
Find the circumference of the circle. Then, find the length of each bolded arc. Use appropriate notation
Vaselesa [24]

Answer:

\text{1) }\\\text{Circumference: }24\pi \text{ m}},\\\text{Length of bolded arc: }18\pi \text{ m}\\\\\text{3)}\\\text{Circumference. }4\pi \text{ mi},\\\text{Length of bolded arc: }  \frac{3\pi}{2}\text{ mi}

Step-by-step explanation:

The circumference of a circle with radius r is given by C=2\pi r. The length of an arc is makes up part of this circumference, and is directly proportion to the central angle of the arc. Since there are 360 degrees in a circle, the length of an arc with central angle \theta^{\circ} is equal to 2\pi r\cdot \frac{\theta}{360}.

Formulas at a glance:

  • Circumference of a circle with radius r: C=2\pi r
  • Length of an arc with central angle \theta^{\circ}: \ell_{arc}=2\pi r\cdot \frac{\theta}{360}

<u>Question 1:</u>

The radius of the circle is 12 m. Therefore, the circumference is:

C=2\pi r,\\C=2(\pi)(12)=\boxed{24\pi\text{ m}}

The measure of the central angle of the bolded arc is 270 degrees. Therefore, the measure of the bolded arc is equal to:

\ell_{arc}=24\pi \cdot \frac{270}{360},\\\\\ell_{arc}=24\pi \cdot \frac{3}{4},\\\\\ell_{arc}=\boxed{18\pi\text{ m}}

<u>Question 2:</u>

In the circle shown, the radius is marked as 2 miles. Substituting r=2 into our circumference formula, we get:

C=2(\pi)(2),\\C=\boxed{4\pi\text{ mi}}

The measure of the central angle of the bolded arc is 135 degrees. Its length must then be:

\ell_{arc}=4\pi \cdot \frac{135}{360},\\\ell_{arc}=1.5\pi=\boxed{\frac{3\pi}{2}\text{ mi}}

8 0
3 years ago
Graph y = 3x - 3 and label the x- and y-intercepts. My answer: (0,3)
Lesechka [4]
The slope-intercept form of the linear function is y = m x + b , where m is the slope and b is y-intercept.
Here we have: y = 3 x - 3
a ) When y = 0
0 = 3 x - 3
- 3 x  = - 3
x = ( - 3 ) : ( - 3 ) 
x = 1
When x = 0
y = 3 * 0 - 3 
y = - 3
So x - intercept is ( 1, 0 ) and y-intercept is ( 0, - 3 ).
b ) The slope:
m = ( y2 - y1) / ( x2 - x1 ) = 
= ( - 3 - 3 ) / ( 5- 7 ) = ( - 6 ) /( - 2 ) = 6 / 2 = 3
Answer: The slope m = 3 . 
5 0
3 years ago
If prices increase at a monthly rate of 3.9%, by what percentage do they increase in a year?
kykrilka [37]
If it increases at 3.9% a month, then in a year it increases 46.8%. 
This is because a year has 12 months and so take 3.9(12)=46.8
8 0
3 years ago
Find the value of x in the circle.
ladessa [460]

Answer:

34

Step-by-step explanation:

4 0
2 years ago
Please HELP ASAP! I attached everything to make it easy for u to understand. Please help quickly. Please be sure about your answ
Assoli18 [71]

Answer: 1, 3, 4, and 5 but stick with 1, 3, and 4

Step-by-step explanation:

just use a calculator to find 3, 4 is easy because red normally has more, and one is just an estimate

6 0
3 years ago
Other questions:
  • there are 12 inches in one foot which expression can be used to find the number of inches in 2.5 feet?
    8·2 answers
  • The sale price of a pair of pants is 65% of the regular price of $25. How much do you save by buying the pants on sale?
    12·1 answer
  • Calculate the premiums for the following insurance policies. Mary pays $417.25 for automobile insurance, of which $32 is for com
    14·2 answers
  • Describe the transformations of the following function. y=tan(2x-π)
    8·1 answer
  • Seven times the difference of a number 5 is 6
    10·2 answers
  • X/5+ 7 = y Solve for x<br> pls hurry
    11·1 answer
  • Miguel compró 253 Kilos de pescado para venderlo en su negocio, si decide vender cada kilo de pescado en Bs 1.900.000. Entonces,
    15·1 answer
  • LMNP is roatated 90 degrees clockwise around the origin
    7·1 answer
  • What is 6.23 million written in scientific notation?
    5·1 answer
  • Heya ~
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!