The surface of a sphere is given by the formula:
area=4πr²
Data:
r=30 m
area=4ππ(30 m)²=3600π m².
Answer: the area of this sphere is 3600π m².
The total number of nails will decrease by 14 when Willa will use 7 nails on each side.
Step-by-step explanation:
Sides of one birdhouse = 7
Nails used on each side = 9
Nails used on one birdhouse = No. of sides * Nails used for each side
Nails used on one birdhouse = 7*9 = 63 nails
If she uses 7 nails on each side, then the number of nails used on each birdhouse will be;
No. of nails = 7*7 = 49 nails
Difference = Old value - New value
Difference = 63-49 = 14
The total number of nails will decrease by 14 when Willa will use 7 nails on each side.
Keywords: multiplication, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
A polynomial is the sum or difference of one or more monomials. A monomial is a constant, a variable, or the product of constants and variables. It does not include negative exponents.
The first choice is a polynomial because the only terms are variables with positive exponents and constants.
The second choice is a polynomial because the only terms are variables with positive exponents and constants.
The third choice is not a polynomial because the first term has a negative exponent.
The fourth choice is a polynomial because the only terms are variables with positive exponents and constants.
The first sequence is where you need to add the number before it to get the next number. In this case the next number is 24+44 which is 68.
For the next sequence, is all odd numbers. First you, subtract 1, multiply by 3,
subtract 5, multiply by 7. So the
next number is 69 since you have to subtract 9.
Hope this helps! <3
Answer:
91.064
Step-by-step explanation: