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Alexus [3.1K]
1 year ago
14

Find the area of a triangle with base 21 inches and the height 8 inches

Mathematics
1 answer:
ankoles [38]1 year ago
6 0

Answer:

84in²

Step-by-step explanation:

this is very easy

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Write two subtraction facts related to 7 +5=12
Lilit [14]

There are different ways you can write these numbers all you do is go by what the number says and think about it.

EX1) 12-5=7

EX2) 12-7=5

5 0
3 years ago
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In each problem, angle C is a right angle. Solve each triangle rounding answers to the nearest
ryzh [129]

Answer:

B = 61°

A = 29°

a = 10

Step-by-step explanation:

We are given;

c = 16, b = 14​

Since we are told that C is a right angle, it means that C = 90°

Thus using sine rule, we have;

c/sin C = b/sin B

16/sin 90 = 14/sin B

16/1 = 14/sin B

sin B = 14/16

sin B = 0.875

B = sin^(-1) 0.875

B ≈ 61°

Now, since C is a right angle, it means that c will be the hypotenuse of the triangle.

Thus, from pythagoras theorem, If the other side of the triangle is a, then;

a² + b² = c²

a² + 14² = 16²

a² = 16² - 14²

a² = 256 - 156

a² = 100

a = √100

a = 10

Since we know B and C, we can find A because sum of angles in a triangle is 180°.

Thus;

A = 180 - (B + C)

A = 180 - (61 + 90)

A = 29°

4 0
3 years ago
Factor completely 3x − 12.<br><br> 3(x − 4)<br><br> 3(x + 4)<br><br> 3x(−12)<br><br> Prime
garri49 [273]
3x - 12
3(3x/3 - 12/3)
3(x - 4)

The answer is: 3(x - 4).
6 0
3 years ago
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Which measure of center is the most appropriate for the data in Table 2 (Weight)? Give a reason for your answer.
AleksandrR [38]
Mean because all of the data points are
fairly close and there aren't any outliers
(extreme values)
5 0
2 years ago
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Brainliest to first right, along with 5 stars, and a thanks, lol:)
vlada-n [284]

Answer:

B

Step-by-step explanation:

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3 years ago
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