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Salsk061 [2.6K]
3 years ago
6

PLEASE HELP I HAVE A TEST AT 2/15!!

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0
Nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn sorry
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What is the area of the triangle shown?
VLD [36.1K]

Answer:

C

Step-by-step explanation:

The formula for area of a triangle is LH/2

when L is 15 and H is 12

8 0
3 years ago
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A toy American Eskimo dog has a mean weight of 8 pounds with a standard deviation of 1 pound. Assuming the weights of toy Eskimo
Vladimir [108]

Answer:

The correct answer is Approximately 6-10 pounds

Step-by-step explanation:

According to the given statement a toy American Eskimo dog has a mean weight of 8 pounds with a standard deviation of 1 pound

According to normal distribution 95% dogs lie between 2 std deviation on either side of the mean.

Therefore lower bound = 8-2 = 6

Upper bound = 8+2 = 10

Thus the range would be approximately 6–10 pounds ....

8 0
3 years ago
O is the centre of the circle. AB is a diameter.
viktelen [127]

Answer:

The value of a is 63° and the value of b is 27°

Step-by-step explanation:

In the given figure

∵ OA, OB, and OC are radii of the circle O

→ The radii of a circle are equal

∴ OA = OB = OC

In Δ AOC

∵ OA = OC

∴ Δ AOC is an isosceles triangle

→ Base angles of the isosceles triangle are equal

∵ ∠OAC and ∠OCA are the base angles of the triangle

∴ m∠OAC = m∠OCA

∵ m∠OAC = a°

∴ m∠OCA = a°

→ The sum of angles in any triangle is 180°

∵ a° + a° + m∠AOC = 180°

∵ m∠AOC = 54°

∴ a° + a° + 54 = 180°

→ Add the like terms

∴ 2a° + 54 = 180°

→ Subtract 54 from both sides

∴ 2a° = 126°

→ Divide both sides by 2

∵ m∠OAC = m∠OCA = 126 ÷ 2

∴ a° = 63

∴ The value of a is 63°

In ΔBOC

∵ OB = OC

∴ Δ BOC is an isosceles triangle

→ Base angles of the isosceles triangle are equal

∵ ∠OBC and ∠OCB are the base angles of the triangle

∴ m∠OBC = m∠OCB

∵ m∠OBC = b°

∴ m∠OCB = b°

∵ ∠AOC is an exterior angle of ΔBOC at the vertex O

→ The measure of the exterior angle equals the sum of the measure

    of the opposite interior angles to this vertex

∵ ∠OBC and ∠OCB are the opposite interior angle of ∠AOC

∴ m∠OBC + m∠OCB = m∠AOC

→ Substitute their measures

∵ b° + b° = 54°

→ Add the like terms

∴ 2b° = 54

→ Divide both sides by 2

∴ b° = 27

∴ The value of b is 27°

3 0
2 years ago
|x+10| / 9 &lt; 2<br><br> Solve the inequality, show step by step
Lerok [7]

Answer:x=8

Step-by-step explanation:

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3 years ago
Which property justifies the following
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Uhm i think identity
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