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3 years ago

What is half of 16 3/4

Mathematics

1 answer:

zzz [600]3 years ago

7 0

Half of 16 and 3/4th is 8.375.

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3 years ago

Make a ten to find 8+4

Gnom [1K]

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3 years ago

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Lao needs to be at school at 8:25 am. It takes her 15 minutes to walk to school, 3/12 hour to eat breakfast, 0.75 hours to get d

Sati [7]

Answer:

6:15

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3 years ago

Pleas answer fast need asap

tiny-mole [99]

10/14 for the first one, 9/13 for the second one. Multiply these two numbers, you get 45/91, so the answer is C

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3 years ago

Please help! i cant solve it

3241004551 [841]

a ≈ 5.2, B ≈ 50°, C ≈ 95°

Solution:

Given data:

A = 35°, b = 7, c = 9

Using cosine law,

$a^{2}=b^{2}+c^{2}-2 b c \cos A$

$a^{2}=7^{2}+9^{2}-2 (7)(9) \cos 35^\circ$

$a^{2}=49+81-126 (0.82)$

$a^{2}=26.68$

Taking square root on both sides.

a ≈ 5.2

Using sine law,

$$\frac{\sin A}{a} =\frac{\sin B}{b}$

$$\frac{\sin 35^\circ}{5.2} =\frac{\sin B}{7}$

Multiply by 7 on both sides.

$$\frac{0.5735}{5.2}\times 7 =\sin B$

Switch the sides.

Sin B = 0.772

$B=\sin^{-1}0.772$

B ≈ 50°

Sum of all the angles of a triangle = 180°

A + B + C = 180°

35° + 50° + C = 180°

85° + C = 180°

C = 180° - 85°

C = 95°

Hence a ≈ 5.2, B ≈ 50°, C ≈ 95°.

4 0

3 years ago