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3 years ago

What is the circumference of a circle if the diameter is 19 cm.?

Mathematics

1 answer:

Naddik [55]3 years ago

8 0

Answer:

Im not sure but i will try but im going to say like 115

Step-by-step explanation:

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A dog trainer has 104 ft of fencing that will be use to create a rectangular work area for dogs. If the trainer wants to enclose

Andrews [41]

Answer:

The dimensions of the work area are 16 ft by 36 ft

Step-by-step explanation:

Let

x ----> the length of the work area in feet

y-----> the width of the work area in feet

we know that

The perimeter of the work area is equal to

$104=2(x+y)$

simplify

$52=(x+y)$

$y=52-x$ ----> equation A

The area of the work area is equal to

$576=xy$ ---> equation B

substitute equation A in equation B

$576=x(52-x)$

$576=52x-x^2$

$x^2-52x+576=0$

solve the quadratic equation by graphing

using a graphing tool

The solutions are

x=16 ft, y=36 ft

x=36 ft, y=16 ft

see the attached figure

therefore

The dimensions of the work area are 16 ft by 36 ft

6 0

3 years ago

1. There are 4 brown, 6 white, and 2 black marbles in a hat. You pick 2 marbles from the hat. Marbles are not returned after the

AnnZ [28]

In total there are 12 marbles because 6+4+2=12 and it says you pick 2 marbles from the hat so you subtract 12-2 and that gives you 10 and it says the marbles aren't returned so therefore you are left with 10 marbles. Hope this helps .

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What is y-1 =2/3(x+3) in slope intercept form?

Elan Coil [88]

Answer:

The slope is just 2/3 and the y intercept is (0,3)

5 0

3 years ago

What is the length of arc ZV?<br><br> π inches

AnnyKZ [126]

Answer:

Step-by-step explanation:

5 0

3 years ago

⅖ = ½ x<br> Explain your reasoning

fomenos

x = 4/5

2/5=1/2x

Step 1: Flip the equation.

1/2x=2/5

Step 2: Multiply both sides by 2.

2*(1/2x)=2*(2/5)x=4/5

4 0

3 years ago