3 years ago

Yea uh... mmmmm... may someone help me with this. Thank you so very much! :D

Mathematics

1 answer:

kobusy [5.1K]3 years ago

5 0

What’s the question?

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Not sure how to answer question 4

drek231 [11]

Answer:

<em>Option D is correct</em>

Step-by-step explanation:

Applying the cosine theorem for triangle ABC, you would have:

cos (angle BAC) = (BA^2 + CA^2 - BC^2)/(2*BA*CA)

= (10^2 + 18^2 - 20^2)/(2*10*18)

= 24/360

=> angle BAC = ~86 deg

Hope this helps!

5 0

3 years ago

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Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year)

jenyasd209 [6]

Answer:

$110\ \text{km/myr} =11\ \text{cm/yr}$

Step-by-step explanation:

To find : Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year) ?

Solution :

Using metric conversions,

1 kilometer = 1000 meter

1 meter = 100 centimeter

So, 1 kilometer = 100,000 centimeter

and 1 million year = 1,000,000 year

$1\ \text{km/myr} =\frac{100000}{1000000}\ \text{cm/yr}$

$1\ \text{km/myr} =0.1\ \text{cm/yr}$

So, $110\ \text{km/myr} =110\times 0.1\ \text{cm/yr}$

$110\ \text{km/myr} =11\ \text{cm/yr}$

Therefore, $110\ \text{km/myr} =11\ \text{cm/yr}$

6 0

3 years ago

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A 70% free throw shooter has been awarded two shots. Find the probability of the following outcomes.

scZoUnD [109]

Answer:

A. 49% chance

B. 9% chance

C. 21% chance

Step-by-step explanation:

A. 0.7 x 0.7 = 0.49

B. 0.3 x 0.3 = 0.09

C. 0.7 x 0.3 = 0.21

Hope this helps :)

3 0

3 years ago

What is the circumference of a circle

borishaifa [10]

C=2πr

Hoped i helped BYEEEEEEEEEEEEEEEEEEEEEEEEE

5 0

3 years ago

How are the commutative property of addition and the commutative property of multiplication alike?

swat32

Because the sum and product will always have to flipped
Example
4x5=5x4
9+6=6+9

5 0

3 years ago

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