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
Ksenya-84 [330]
3 years ago
11

I need help with this!

Mathematics
1 answer:
Leviafan [203]3 years ago
7 0

Solution

f(r) = 3.14r^{2}

Now we have to find the area of the circle when the radius (r) = 4.

Plug in r = 4 in f(r) to get the area of the circle.

f(4) = 3.14(4^{2} )

f(4) = 3.14 * 4 * 4

f(4) = 3.14 *16

f(4) = 50.24

The answer is C. 50.24

You might be interested in
How do I solve this problem?
lidiya [134]
B = A(1+\frac{i}{n})^{nt}
A = 47900
i = 5% = .05
n = number of compounding periods in a year (1,2,12,365)
t = number of years = 5
4 0
3 years ago
Hannah bought x boxes of cereal boxes and y cartons of milk. The number of milk cartons she bought was 2 more than twice the num
gizmo_the_mogwai [7]
The answer is "a" because she has 5 total. 

7 0
3 years ago
Read 2 more answers
Use the number line below, where RS = 7y +3, ST = 5y +8, and RT = 83.
Llana [10]

Answer:

Step-by-step explanation:

Given the vectors based on the number line as RS = 7y +3, ST = 5y +8, and RT = 83, the equation RS+ST = RT will be used to get the unknown.

Substituting the given equation into the expression we will have;

7y +3+5y +8 = 83

collect like terms'

7y+5y+3+8 = 83

12y + 11 = 83

12y = 83-11

12y = 72

y = 72/12

y = 6

b) Substitute y = 6 into RS and ST

Given RS = 7y+3

RS = 7(6)+3

RS = 42+3

RS = 45

For ST;

ST = 5y+8

ST = 5(6)+8

ST = 30+8

ST = 38

6 0
3 years ago
Point M is the midpoint of segment AB.<br> AM=3x+40 and MB=x^2. Find x and AB
Nina [5.8K]

\text{Hello there! :)}

x = 8\\\\AB = 128 \text{ units}

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

\text{Since Point M is the midpoint of AB, then:}\\\\AM = MB\\\\

\text{Set the two equations equal to each other:}\\\\3x + 40 = x^{2} \\\\

\text{Move all terms over to one side to simplify more easily:}\\\\0 = x^{2} - 3x - 40

\text{Factor by finding numbers that sum up to -3 and multiply into -40:}\\\\0 = (x - 8)(x + 5)\\\\x = -5, 8

\text{The length of a segment cannot be negative, so choose the positive solution:}\\\\x = 8

\text{Substitute in this value of x into either AM or MB to solve for AB:}

AB = 2(MB)\\\\AB = 2(x^{2} )\\\\AB = 2(8^{2})\\ \\AB = 2(64)\\\\AB = 128 \text{ units}

5 0
3 years ago
The figure below has a point marked with a large dot.
OleMash [197]

Therefore ,The marked point will now have the updated coordinates P' (2, 7).

<h3>Define Translation of Points on a Coordinate Plane.</h3>

When a figure is transferred from one area to another without altering its size, shape, or orientation, a translation takes place. If we know which way and how far the figure to be moved, we can draw the translation in the coordinate plane.

Here,

On an X-Y coordinate plane, a figure is plotted.

When translating a figure 7 units to the down, we must provide the coordinates of the indicated point in the original figure

"(x, y)" = "(x + m, y + n)"

In response to the query, we have

The specified point's coordinates are: P (5,4).

The new coordinates of the indicated spot after this figure is translated 6 units to the right will be -

P'( 5,4- 7) = P'(5, -3) (5, -3)

As a result, the designated point's new coordinates are P' (5, -3)

The new coordinates of the marked point will be - P'(5, -3)

To know more about translation of points , visit

brainly.com/question/17151240

#SPJ1

6 0
1 year ago
Other questions:
  • (1 - 5q ) +2 (2.5q +8 )
    14·1 answer
  • The value of which of these expressions is closest to e ?(1+1/31)to the power of 31
    8·1 answer
  • Suppose Y varies directly with x, and y = 25 when x = 140. what is the value of x when y = 36?
    10·1 answer
  • Enter your answer and show all the steps that you use to solve this problem in the space provided. Simplify the expression. 5 +
    6·1 answer
  • Which phase best describes the transition from the graph y=2x^2 to the graph of y2x^2+5?
    13·1 answer
  • Halla el volumen de un prisma con base triangular donde la base tiene 4m y la altura de la base es de 6cm,asi como la altura del
    11·1 answer
  • What angle is complementary to 1 ? I'll mark brainliest
    7·2 answers
  • Nasim is ordering a taxi from an online taxi service. The taxi charges $3 just for the
    9·1 answer
  • What is the volume of this prism?
    10·1 answer
  • What should be the first step in adding these equation to eliminate y 12x - 2y = -1 + 4x + 6y =-4
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!