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katen-ka-za [31]
3 years ago
5

Juan wants to make a new game board that is a grid containing 25 equally sized squares. How many squares should be shaded to cre

ate a region with a geometric probability of 0.2? Explain.
Mathematics
2 answers:
pickupchik [31]3 years ago
8 0

Let the number of shaded square be x. And it is given that total number of squares are 25.

probability = \frac{shaded \ squares}{total \ squares}

Substituting the values

0.2 = \frac{x}{25}

Performing cross multiplication

0.2*25=x \\ x = 5

So 5 squares should be shaded to create a region with a geometric probability of 0.2 .

stellarik [79]3 years ago
4 0
I'm pretty sure that would be 12.5
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2 years ago
The area of a rectangle is 1,036 cm and its length is 74 cm.
Nikitich [7]

Answer:

(i) Breadth = 14 cm

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Step-by-step explanation:

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We know that, Area of a rectangle = length × breadth.

Then,

1036 = 74 \times Breadth\\1036  \div 74 = Breadth\\\boxed{\bf\:14 \:cm = Breadth }

(ii) Perimeter of a rectangle = 2 (length + breadth)

Then,

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8 0
2 years ago
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Lorico [155]

Given that ∠B ≅ ∠C.

to prove that the sides AB = AC

This can be done by the method of contradiction.  

If possible let AB \neq=AC

Then either AB>AC or AB<AC

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But since angle C = angle B, we get AB cannot be greater than AC

Case ii:  If AB<AC, then by triangle axiom, Angle C < angle B.

But since angle C = angle B, we get AB cannot be less than AC

Conclusion:

Since AB cannot be greater than AC nor less than AC, we have only one possibility. that is AB =AC

Hence if angle B = angle C it follows that

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6 0
2 years ago
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alekssr [168]
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d3 \: = \sqrt{{(7 - 4)}^{2} + {(2 - 6)}^{2} } \\  =  \sqrt{{(3)}^{2} +  {( - 4)}^{2} } =  \sqrt{9 + 16}  \\  =  \sqrt{25} \:  = 5
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5 0
3 years ago
Read 2 more answers
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pentagon [3]

Answer:

x = 14.5

can also be written as;

x = 29/2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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