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
k0ka [10]
2 years ago
8

1.) What is the area of the circle shown below? 10cm

Mathematics
1 answer:
lana [24]2 years ago
5 0

Answer:

A = 78.5 cm²

Step-by-step explanation:

the area (A) of the circle is calculated as

A = πr² ( r is the radius )

here diameter = 10 cm , then r = 10 cm ÷ 2 = 5 cm , so

A = π × 5² = 25π ≈ 78.5 cm² ( to the nearest tenth )

You might be interested in
The area of a trapezoid that has a height of 5 cm and bases that are 8 cm and 45 cm
mylen [45]
I do believ that the answer is 925 if it not in very sorry
5 0
3 years ago
WILL MARK BRAINLIEST!!! PLZ HELP! The following graph describes function 1, and the equation below it describes function 2. Dete
Assoli18 [71]

Answer:

C

Step-by-step explanation:

The maximum/minimum values is simply the y-value of the vertex. Since both of the functions have a negative leading coefficient, they will both have maximum values.

For Function 1, we can see that the vertex is at (4,1). Thus, it's maximum value is at y=1.

For Function 2, we need to work out the vertex. To do this we can use:

x=\frac{-b}{2a} ,y=f(-b/2a)

To find the vertex.

Function 2 is defined by:

f(x)=-x^2+4x+1

Therefore:

a=-1, b=4, c=1

x=-(4)/2(-1)=-4/-2=2\\f(2)=-(2)^2+4(2)+1\\=-4+8+1\\=4+1=5

Thus, the vertex of Function 2 is at (2,5). Therefore, the maximum value of Function 2 is y=5.

5 is greater than 1, so the maximum value of Function 2 is greater.

The answer is choice C.

6 0
3 years ago
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.00 m/s. The car is a distan
enyata [817]
S=\frac{d}{t},\ where\ s-speed,\ d-distance,\ t-time\\t=\frac{d}{S}\\\\d+37.2-bear\ distance\\\\Time\ (tourist\ tourist\ and\ bear)\ will\ be\ the\ same\ so\ we\\ should\ comparise\ them:\\\\\frac{d}{4}=\frac{d+37.2}{4.96}\\\\4.96d=4(d+37.2)\\\\4.96d=4d+148.8\\\\4.96d-4d=148.8\\\\0.96d=148.8\\\\d=155m\\\\Maximum\ value\ of\ d\ is\ 155m
3 0
3 years ago
Can someone convert these decimals into fractions please?
erastova [34]

0.125 = 5/40
0.2=1/5
Can't really do a repeat number as a fraction.
1.25 my best guess 25/100

5 0
4 years ago
Ari has a total of 22 coins consisting of pennies and nickels. The total value of the coins is $0.54.
anastassius [24]
Let n = the number of nickels that Ari has.
Let p = the number of pennies that Ari has.

The total number of coins she has is 22.

n + p = 22

We have our first equation... But we another one to solve this.

Each penny is going to be $0.01 and a nickel is work $0.05.

And the total is $0.54

Our second equation. 0.05n + 0.01p = 0.54

n + p = 22
0.05n + 0.01p = 0.54

Multiply the top by -0.05

-0.05n - 0.05p = -1.1
0.05n + 0.01p = 0.54

The n terms cancel out.

-0.04p = -0.56

p = 14

Substitute p back into the top equation.

n + 14 = 22

n = 8

So, Ari has 8 nickels and 14 pennies.
6 0
4 years ago
Read 2 more answers
Other questions:
  • the triangle inquality theorem states that the sum of the lengths of any two sides of a triangle is greater that the length of t
    5·1 answer
  • Evaluate. write your answer as a fraction in simplest form. 2/3^3
    8·1 answer
  • Shaun read 60 pages in 34 h.
    11·1 answer
  • Check
    14·1 answer
  • Anita is a door-to-door saleswoman for a company selling bedcovers. The company pays her a fixed salary of Rs W every month and
    8·1 answer
  • Find the next number in the pattern.
    12·1 answer
  • Question:
    12·1 answer
  • Consider the formula for the average velocity, v, of a moving particle. In the formula, d1 and d2 represent the distance travele
    5·1 answer
  • A% of 80<br> Plz plz plz plz plz plz
    15·1 answer
  • Round 5.7574 to the nearest hundredth.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!