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slavikrds [6]
2 years ago
11

The diagram below shows a rectangular sheet of cardboard with 2 circular

Mathematics
2 answers:
slamgirl [31]2 years ago
6 0
2 =

3cm =


Explanation - solve the function operation
Aleks [24]2 years ago
3 0

Answer:

Two sector of 90 degree cut out(90*2=180 degree) means semicircle

perimeter of circle= 2πr

= 2*22/7*3=18.85 cm

perimeter of semicircle=18.85/2=9.42 cm approx

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HELP ME WITH THIS MATH PLEASE!!
Anna007 [38]
A. slope is rise/run. can count up 3 right 2. slope = 3/2
also by slope formula m = (y - y1)/(x - x1)

B. y-intercept is the y coordinate where the line crosses the y-axis.
See that it is at y = -4 on the graph?
To use the slope.. go backwards from the closest point (4,2) down 2 left 3 gets you to the next point (2,-1) then go down 2 left 3 again to get to y-intercept (0, -4)

C. y = (3/2)x - 4

How you get it is by putting in the values into the standard equation for a line; y = mx + b
m is slope and b is y-intercept.
4 0
3 years ago
Multiplying polynomials find the product . <br> 2x(-2x-3)
skad [1K]


2x(-2x-3)=

=2x*(-2x)+2x*(-3)=

=-4x²-6x

7 0
3 years ago
Which equation is equivalent to sqrt x +11=15
Bas_tet [7]

Answer:

x=16

Step-by-step explanation:

We are given that

\sqrtx+11=15

we have to solve this equation for x

in order to do that we need to isolate x first

hence

subtracting 11 from both sides we get

\sqrtx+11-11=15-11

\sqrtx=4

Now we square on both sides we get

(\sqrtx)^2=4^2

x=4 \times 4

x=16

hence x =16

3 0
3 years ago
Perform the following calculation: (–16) – (–42)
Viefleur [7K]
That equals, positive 26
6 0
3 years ago
Read 2 more answers
Find and simplify the difference quotient f(x + 1) – f(x) for the following function.
ra1l [238]

In your situation you said that

  • f(x) = mx+b
  • m=0

Putting those together, you'd have f(x) =  b because 0\cdot x+b=b.

To evaluate the difference quotient, first find each piece on it's own:

  • f(x+1) = b because f(x) = b no matter what your x-value is.
  • f(x) = b

So putting those together:

     f(x+1) - f(x) = b-b = 0

Remember that the difference quotient is basically finding the slope of something.  Since you were given that the slope is 0, the difference quotient should work out to match that.

3 0
3 years ago
Read 2 more answers
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