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
erik [133]
3 years ago
7

Pls help me!!! ( pls dont answer if you don’t have the answer I will report you ...).

Mathematics
2 answers:
bezimeni [28]3 years ago
5 0
I think 517.26
I did 10 times 3^2 (9) it equals 90. Then 90 times 3.14 and got 282.74. Then did 800- 282.74 and got 517.26
Nat2105 [25]3 years ago
4 0

Answer:

2.05 cm

Step-by-step explanation:

3.14× (n+3)²×10 = 800

31.4(n+3)²=800

(n+3)²= 800/31.4

(n+3)²= 25.48

n+3 =√25.48

n+3= 5.05

n = 5.05 -3 = 2.05

so, the radius should be increased :

2.05 cm

You might be interested in
4. Which term of the AP:3, 8, 13, 18,...,is 78?​
givi [52]

Step-by-step explanation:

The first term of the AP (a) = 3

and common difference (d) = 8-3= 5

therefore, a+(n-1)d = 78

=> 3+(n-1)5= 78

=> n-1=75/5

=> n-1 = 15

=> n= 16

16th term of the AP is 78

6 0
3 years ago
A dresser in the shape of a rectangular prism measures 2 feet by 2 feet by 6 feet. What is the surface area of the dresser?
Zolol [24]
56ft². <span>Surface Area = 2×(2×2 + 2×6 + 2×6)</span>
4 0
3 years ago
Read 2 more answers
Which ratio is equivalent to the ratio 2:5?<br><br> a. 6:15<br> b. 5:2<br> c. 5:8<br> d. 4:7
Alex_Xolod [135]
The answer is A) 6:15, because if you divide both numbers by three, it'll give you 2:5
4 0
3 years ago
Read 2 more answers
The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d
sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

7 0
3 years ago
How many 1/10 cubes are in 4 1/2
larisa [96]

Answer:

45 cubes

Step-by-step explanation:

There are 10 cubes in each 1. so 10 x 4 = 40. 1/2 of 10 is 5 so 40+5 = 45.

4 0
3 years ago
Other questions:
  • What is the slope of the line that goes through the points (1, -5) and (4, 1)
    9·2 answers
  • In 50 gram portion of cereal 8 grams of it are sugar which of the following represents the present of the 50 grams that is sugar
    6·2 answers
  • Solve the problem.
    12·1 answer
  • What is cosA ?<br><br><br><br> Enter your answer, as a simplified fraction, in the box.
    13·1 answer
  • In order for a vaccine to be effective, it should reduce a person's chance of acquiring a disease. Consider a hypothetical vacci
    7·1 answer
  • Helppp you know this​
    9·2 answers
  • Help with limits will give brainliest
    7·1 answer
  • Need help on question 1 ASAP
    15·1 answer
  • A bag with 1/4 pounds of raisins will be used to fill snack cups with 1/32 pounds of raisins each. How many snack cups can be fi
    13·1 answer
  • Simplify using factorising<br><br> 2x+4/x^{2}-x-6
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!