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3 years ago

What is the perimeter of the quadrilateral 9m 5m 7m 11m

2 answers:

5 0

The answer is 32m.

the way you would find out is by adding up all the measurements. so you would do

9+5+7+11

which would get you the final answer of 32m. make sure you dont forget the units.

Luda [366]3 years ago

4 0

The perimeter is 32m add all sides to find perimeter

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3 years ago

Which ordered pair is a solution of the system of equations shown in the graph below?

Debora [2.8K]

Answer:

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3 years ago

Suppose that two cards are randomly selected from a standard 52-card deck. (a) what is the probability that the first card is

Nutka1998 [239]

There are 13 clubs in a standard 52 card deck. The first time you draw a club the odds of doing it are
13/52 = 1/4
The second time you draw a club, the number of clubs have gone down by 1 and the number of cards in the deck have also gone down by 1.

So this time the odds are12/51

The probability of both happening, one after the other without replacement is
1/4 * 12/51 = (1*12)/(4*51) = 12/204 = 3/51 = 1/17

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8 0

4 years ago

X-c/2=-3c/2 solve for X

Alex_Xolod [135]

x - c/2 = -3 c/2

Add c/2 to each side of the equation:

x = -2 c/2

Simplify the fraction on the right side:

x = -c

4 0

3 years ago

The surface area of a cube is increasing at a rate of 15 square meters per hour. At a certain instant, the surface area is 24 sq

algol13

Answer:

The volume of cube is increasing at a rate 7.5 cubic meter per hour.

Step-by-step explanation:

We are given the following in the question:

Surface area of cube = 24 square meters.

Let l be the edge of cube.

Surface area of cube =

$6l^2 = 24\\l^2 = 4\\l = 2$

Thus, at that instant the edge of cube is 2 meters.

$\dfrac{dS}{dt} = 15\text{ square meters per hour}\\\\\dfrac{d(6l^2)}{dt} = 15\\\\12l\dfrac{dl}{dt} = 15\\\\\dfrac{dl}{dt} = \dfrac{15}{12\times 2} = \dfrac{15}{24}$

We have to find the rate of change in volume.

Volume of cube =

$l^3$

Rate of change of volume =

$\dfrac{dV}{dt} = \dfrac{d(l^3)}{dt} = 3l^2\dfrac{dl}{dt}\\\\\dfrac{dV}{dt} = 3(2)^2\times \dfrac{15}{24} \\\\\dfrac{dV}{dt} = 7.5\text{ cubic meter per hour}$

Thus, the volume of cube is increasing at a rate 7.5 cubic meter per hour.

4 0

3 years ago