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dalvyx [7]
3 years ago
15

Find the area of an equilateral triangle whose perimeter is 15 units.

Mathematics
2 answers:
adoni [48]3 years ago
8 0
Area= 12.5 units^2.
ohaa [14]3 years ago
8 0

Answer:

The area is 1/2×3×3= 4.5

Step-by-step explanation:

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Help please! Thank you! :)
ioda

Answer:

a. A\cap B=\{6, 11\}

Step-by-step explanation:

U = {3, 4, 6, 7, 9, 11, 12, 15}

A = {3, 6, 11, 12}

B = {6, 7, 11, 15}

Since, 6 and 11 are common elements in sets A and B. Therefore ,

A\cap B=\{6, 11\}

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2)to do the old <u>Rise</u>
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D is the correct answer

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Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. What is the estimat
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Step-by-step explanation:

Given that Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. We are to calculate the probability that Rita will need to pick atleast 5 beads before she picks a grey bead from her collection.

Prob for drawing atleast 5 beads before she picks a grey bead from her collection

= 1-Prob for drawing atleast one grey beed in the first 5 draws.

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Prob for drawing atleast one grey beed in the first 5 draws.

=1-Prob of no grey

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