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3 years ago

My brother is 5 years older than I am. My sister is 3 years younger than I am.

Mathematics

2 answers:

grin007 [14]3 years ago

7 0

Answer:

8 years older then your younger sister

erica [24]3 years ago

3 0

Step-by-step explanation:

5 plus 3 equals 8 so the brother was 8 when the sister was m years old

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3 years ago

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adell [148]

Answer:

68 hours

Step-by-step explanation:

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3 years ago

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hram777 [196]

Answer:

2.9

Step-by-step explanation:

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3 years ago

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In triangle ABC, a = 4, b = 6, and cos C = − 1/4. What is the length of side c?

shusha [124]

The length of side c would be 8.

Step-by-step explanation:

Given that,

a = 4

b = 6

cosC = -1/4

If we are given two sides and angle, the law of Cosines can be used to find the third side:

$c^{2} = a^{2} + b^{2} - 2ab (cos(c))$

By inserting the values in the formula, we get

$c^{2} = 4^{2} + 6^{2} - 2.4.6 (-\frac{1}{4} )$

$c^{2} = 16 + 36 + 12$

$c^{2} = 64$

$\sqrt{c^{2} } = \sqrt{64}$

c = 8.

Therefore, the length of side c would be 8.

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3 years ago

Find the distance points (7,-2) (3,1)

grandymaker [24]

Answer:

square root of 25

Step-by-step explanation:

I used my ti-84 plus ce calculator to solve

>download DISTMID

>prgm

>DISTMID

>DISTENCE

>enter points

>answer

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3 years ago