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
lana [24]
3 years ago
5

7th grade math , help me !

Mathematics
2 answers:
zlopas [31]3 years ago
8 0

B. 31.4 (pi) units

C. 31.4 units

A. 10 (pi)

Explanation:

Well since the equation to find circumference is C = 2(pi)r

And 10(pi) is exactly 2(pi)r, it’s not the answer.

And if we use 3.14 as an estimate for (pi), then 31.4 is also true for the circumference, because 10•3.14=31.4.

Also 10(pi) is more acurate then 31.4 because (pi) isnt exactly 3.14 its more like 3.1415926535...

Hope this Helps!

USPshnik [31]3 years ago
5 0
The answer is 31.4 I remember doing this
You might be interested in
Determine all numbers at which the function is continuous
Kay [80]

Answer

Please see attached image for full understanding of the solution

If we plot the function we can see that it has a discontinuity at x = 1.

Also,

If we evaluate at x = -9, we see that the values of the piecewise function in both cases are completely different.

Therefore, x = -9 is also a discontinuity.

The right answer is option a

(discontinuity at x = 1 and x = -9)

6 0
3 years ago
Phillip departed from town A with coordinates (1, 6) towards town B with coordinates (7, 6). At the same time Bruce headed from
Lana71 [14]

Step-by-step explanation:

First we need to determine the length of the path they're walkin on. We do this with the following equation:

\sqrt{(x1 - x2)^{2} + (y1 - y2)^{2}  }

Let's fill it in:

\sqrt{(1 - 7)^{2} +(6 - 6)^{2}  } =  \sqrt{36}  = 6

They walk 7:5 respectively 7+5=12 so on 6 units they'll walk 12/6=2 so 7/2:5/2=3.5:2.5

3.5 units right from (1,6) is 1+3.5=4.5 which gives us (4.5,6)

6 0
3 years ago
The worlds two highest dams are both in Tajikistan. The rogun dam is 35 meters taller than the Nurek dam. Together they are 635
natta225 [31]

Answer:

  Height of Nurek dam = 300 m

Explanation:

 Let the height of Rogun dam be a p and height of Nurek dam be q.

 The Rogun dam is 35 meters taller than the Nurek dam

                 p = q + 35

                 p - q = 35 ------------------------Equation 1

  Together they are 635 meters tall

                  p + q = 635 ------------------------Equation 2

Equation 1 + Equation 2,

                 2 p = 635 + 35

                   p = 670/2 = 335 m

 Substituting in equation 2

              335 + q = 635

                       q = 300 m

 Height of Nurek dam = 300 m

3 0
3 years ago
Which equivalent fraction would you have to use in order to add 3/5 to 21/25
spayn [35]
15/25 would be your answer.

5 0
3 years ago
Read 2 more answers
how much interest will have to be paid on a loan of $18467 for 8 months at a simple interest rate of 12.6% per year? round to th
liberstina [14]
Simple interest = PitwhereP=principal= 18467i=annual interest rate=12.6%=0.126t=time in years=8/12=2/3

Therefore
interest = 18467*0.126*2/3=$1551.23   after 8 months
4 0
4 years ago
Other questions:
  • Write a story problem for the additional sentence 7+2=9.solve the story problem.
    12·1 answer
  • If jill climed 100 feet more how many feet above sea level would she be
    5·1 answer
  • In ∆PQR, PQ = 39 cm and PN is an altitude. Find PR if QN = 36 cm and RN = 8 cm.
    14·2 answers
  • Parallelogram ABCD has vertices at A(-2,3), B(4,3), C(-1,1). What is the length of side AB? Answer choices ;
    7·1 answer
  • Sofia bought 12 pens for $0.59 each. she paid with a $10 bill. how much change will she receive?
    12·1 answer
  • A piece of wire of length 7070 is​ cut, and the resulting two pieces are formed to make a circle and a square. Where should the
    14·1 answer
  • Xander takes a quiz worth 150 points. Each question is worth 30 points. Sketch a graph to show his score if he misses 1,2,3,4 or
    13·1 answer
  • 7. Mrs. Paulson is constructing a 90% confidence interval for the difference of means based on independent
    6·1 answer
  • What is the answer to this 1 and 2
    5·2 answers
  • What is the prime factorization of 90​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!