Answer:
x = 3√7 cm.
or 7.94 cm to the nearest hundredth.
Step-by-step explanation:
We use the Cosine Rule:
21^2 = x^2 + (2x)^2 - 2x.2x cos 120
21^2 = 5x^2 - 4x^2 * -0.5
441 = 5x^2 + 2x^2
7x^2 = 441
x^2 = 63
x = √63
x = 3√7 cm.
Answer:
y = -12x
Step-by-step explanation:
We assume you're concerned with the form ...
y = kx
Putting -12 for k gives ...
y = -12x . . . . . the first choice
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<em>Additional comment</em>
The answer will depend somewhat on the context of the question. If you're studying proportions, then "k" is the constant of proportionality as shown above.
If you're studying function translations, then "k" is the vertical translation, as in ...
y = m(x -h) +k
In this case, the equation y = x -12 will have a "k" value of -12.
Answer:
the probability is 3/4
Step-by-step explanation:
probability = possible outcome/total outcome
Possible outcome= 12-3=9
Total outcome = 12
Probability = 9/12 = 3/4
So the chance of u getting a good apple is 3/4
Answer:
Here, ʙay!
Step-by-step explanation:
Question 3: -x-2-4x-3 = -5x-5
Question 4: -36-24=-60
Question 5: 9+4-6 = 13-6 = 7
Hope I helped!
12
1/2 * x =6
6/ (1/2) = x
X=12