Answer:
13cm
Step-by-step explanation:
Answer:
58°
Step-by-step explanation:
<h3>Angle sum property of triangle:</h3>
The sum of all angles of a triangle is 180°.
x + 69 + 55 + x + 78 = 180
x + x + 69 + 55 + 78 = 180
Combine like terms,
2x + 202 = 180
Subtract 202 from both sides,
2x = 180 - 202
2x = -22
Divide both sides by 2,
x = -22/2
x = -11
∠A = x + 69
= -11 + 69

<span>metric is very conveinient
1gram=1cm^3 of water
1m^3=1,000,000,000 grams
water is 18.015 grams per mole
(1,000,000 grams water)/(18.015 grams/mole) = 55509.3 moles
there are 6.02e23 molecules in 1 mole of water so
55509.3 moles * (6.0221E23) = 3.3428E27 molecules of water </span>in 1m^3 of water
so we have200 of those
200 times <span>3.3428E27=6.6856E29 molecules
answer is </span><span>6.6856 times 10^29 mlecules</span>
Answer:
64
Step-by-step explanation:
8 times 8 is 64, but it is the opposite of positive is negative
Answer:
I am currently doing that one as well right know and I think that you need two octahedrons, and 8 tetrahedrons
Step-by-step explanation: