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
Keith_Richards [23]
3 years ago
7

Please help me with these?? Work needs to be shown.

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
8 0

Answer:

Step-by-step explanation:

7) Area = 615.75 sq. km

πr² = 615.75

3.14*r² = 615.75

r² = 615.75/3.14 = 196

r = √196

r = 14 km

8) circumference = 15.71 yards

πd = 15.71

3.14*d = 15.71

d = 15.71/3.14  = 5 yards

9)Area = 415.48 sq.inches

πr² = 415.48

3.14*r² = 415.48

r² = 415.48/3.14 =  132.31

r = √132.31

r = 11.5 inches

diameter = 11.5*2 = 23 inches

You might be interested in
How would I simplify 53-2(16/8*16-7)
Oduvanchick [21]

The simplified form of the expression is 3

<h3>Simplifying an Expression</h3>

From the question, we are to simplify the given expression

The given expression is

53 -2(16/8 * 16-7)

Simplifying

Using BODMAS

53 -2(16/8 × 16-7)

53 -2(2 × 16-7)

53 -2(32-7)

53 -2(25)

53 -50

= 3

Hence, the simplified form of the expression is 3

Learn more on Simplifying an Expression here: brainly.com/question/3622770

#SPJ1

7 0
1 year ago
What is the quotient of 7035/15 pls answer this fast
alexgriva [62]
<span>What is the quotient of 7035/15

469 is equivalent to 7035/15

because 7035/15=469</span>
3 0
3 years ago
at a summer camp 23 of the boys and 17 of the girls can swim there nine boys 11 girls at the camp who cannot swim. what is the r
Sedbober [7]

Answer:

4×30+5×30=120+150=270

Step-by-step explanation:

looking at the last row, we can see that the total number of students will be 4×30+5×30=120+150=270

8 0
2 years ago
5) BRAINLIEST AND 10+ POINTS! :)
yKpoI14uk [10]

Answer:

b) 1000x + 115

Step-by-step explanation:

C = 20y + 15

= 20(50x + 5) + 15

= 1000x + 100 + 15

= 1000x + 115

4 0
3 years ago
Read 2 more answers
Find two numbers whose sum is 15; twice the first number decreased by the second number gives 6.
Olegator [25]

7 + 8 = 15
14 - 8 = 6

Hope this helps!

4 0
2 years ago
Other questions:
  • Why didn’t the Shah get his own temple?
    12·2 answers
  • Sara bought a car for $15700 with interest rate of 5 3/7% and the contract is for 7 years.
    12·1 answer
  • Plot the intercept x+5y=5​
    13·2 answers
  • Sally drives 66 miles in 3 hours and Molly drives 72 miles in 4 hours. What is the difference between their average speed, in mi
    12·1 answer
  • A store sells four-packs of permanent markers in assorted colors for $3.19 per pack. All spiral-bound notebooks, whether wide-ru
    14·1 answer
  • Is a CR grade good or bad? ​
    7·1 answer
  • Orlando invests S1000 at 6% annual interest compounded daily and Bernadette invests S1000 at 170
    12·1 answer
  • What is -2 radical 54 (please help)
    11·2 answers
  • Determine the domain on which the following function is decreasing.
    6·1 answer
  • Sara bought a pack of 6 waters. It cost 3.96. How much did each water cost?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!