Answer:
Exact Form:
x
=
(1
±
2
√
3)/
3
Decimal Form:
x
=
1.48803387
…
,
−
0.82136720
…
Step-by-step explanation:
Solve the equation for x by finding a
, b
, and c of the quadratic then applying the quadratic formula.
Hi!
1 pound = 450 g = 0,45kg
So, then 13 pounds = 13 * 0,45kg = 5,85kg
Her weight in kilograms is 5,85kg.
Hope this helps!
Answer:
18 Milk Chocolates: 24 dark chocolates
Step-by-step explanation:
The total number of chocolates are 42
So you have Milk: Dark, in the ratio 3:4
You do 3+4 which = 7
You then divide the total ratio outcome by the total number
So you do, 42/7 =6
You then do 6 and put this into the ratio
So you do, 3x6 and 4x6, which = 18 and 24
To check if your answers correct add the ratio outcomes
And If you add 18 and 24 together, you should get your beginning total of 42
Answer:
two thirds, because the angles are complementary
Step-by-step explanation:
The cosine of an angle is equal to the sine of its complement.
cos(23°) = 2/3 = sin(67°)