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
UNO [17]
3 years ago
10

EASY 7TH GRADE MATH 2r=62

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
8 0
R=31
62 divided by 2 = 31
Therefore r=31
vichka [17]3 years ago
5 0

Answer:

r=31

Step-by-step explanation:

2r=62

r=31

You might be interested in
In David’s class, the ratio of right-handed students to left-handed students is 24 to 6. How many right-handed students are ther
BaLLatris [955]

Answer:

There are 4 right handed students for each left hand because, you just divide 24 by 6 and you get 4 for each of the 6 left handed students.

Step-by-step explanation:

Or just group, by doing 6 circles and just put one in each of them so then you can see when all of the circles are taken up .

Thanks! Please Mark Brainiest! <3

~   BiologyisAmazing

6 0
3 years ago
I need help with this, I don't got it
Brrunno [24]

Answer:

slope is -4/3 and y-int is -1

Step-by-step explanation:

Solve for y

3y = -3 - 4x

y = -4x/3 - 1

so the slope is -4/3

the y intercept is -1

Start by making a point at (0,-1), then count 4 down and 3 to the right and make another point. Continue to do this until you have a line long enough.

4 0
3 years ago
Integrate 1/((x^5)*sqrt(9*x^2-1)) ...?
Korolek [52]
Let 9x^2-1 = y^2 
<span>=> 18xdx = 2ydy </span>
<span>=> ydy = 9xdx </span>

<span>lower limit = sqrt(9*2/9 - 1) = sqrt(1) = 1 </span>
<span>upper limit = sqrt(9*4/9 - 1) = sqrt(3) </span>

<span>Int. [sqrt(2)/3,2/3] 1/(x^5(sqrt(9x^2-1)) dx </span>

<span>= Int. [sqrt(2)/3,2/3] xdx/(x^6(sqrt(9x^2-1)) </span>
<span>= 81* Int. [1,sqrt(3)] ydy/((y^2+1)^3y) </span>
<span>=81* Int. [1,sqrt(3)] dy/(y^2+1)^3 </span>

<span>y=tanz </span>
<span>dy = sec^2z dz </span>

<span>=81*Int [pi/4,pi/3] cos^4(z) dz </span>
<span>=81/4*int [pi/4,pi/3] (1+cos(2z))^2 dz </span>
<span>=81/4* Int. [pi/4,pi/3] (1+2cos(2z)+cos^2(2z)) dz </span>

<span>=81/4*(pi/3-pi/4) + 81/4*(sin(2pi/3)-sin(pi/2)) + 81/8 * (pi/3-pi/4) </span>
<span>+ 81/32 *(sin(-pi/3)-sin(pi)) </span>
<span>=81(pi/48+pi/96+1/4*(sqrt(3)/2 - 1) - 1/32 * sqrt(3)/2) </span>
<span>=81/32*(pi+3sqrt(3)-8)</span>
5 0
3 years ago
How can you use scientific notation to compare the mass of an electron to the mass of a proton
Advocard [28]

Answer:

explained below

Step-by-step explanation:

Because the electro has a smaller mass than the mass of the proton, scientific notation is usually used so that the numbers are on the same "scale" but if we see the scientific notation we may be able to identify which is greater and which is less, due to that the exponent is less the number is smaller and on the contrary if the number is greater, it is a larger number.

In the image I leave an example of the use of scientific notation in this area

5 0
3 years ago
Lauryn wants to analyze the weights of
V125BC [204]

Answer: 33

If you put all the numbers In order from least to greatest and find the middle number you'll get the answer

3 0
3 years ago
Other questions:
  • Luke lives 0.6 kilometers from the skating rink. Mark lives 0.45 kilometers from the skating rink. Who lives closer to the skati
    8·1 answer
  • A baseball player hit a ball 360 feet to the outfield.it takes the ball 4 seconds to travel this distance.how many feet does the
    7·1 answer
  • Lee and his family are planning a hiking trip on the Appalachian Trail. They are packing food in 2-lb bundles. How many bundles
    12·2 answers
  • What is the area of the rectangle?
    8·2 answers
  • Prove that (sec 12A-1)/(sec 6A-1)=tan 12A/tan 3A
    5·1 answer
  • Pls answer will give brainlyist. 36/50 = 18/_ ?
    8·2 answers
  • PLEASEEE HELP ME <br> Write an equation of the line in slope-intercept form.
    15·1 answer
  • X2+6x-16) divided (x-2)
    9·2 answers
  • 19 more than the number c is 4
    13·2 answers
  • The ratio 5 girls to 3 boys in couris . there are 24 boys how many many girls are there
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!