Answer:
D=(-infinity, +infinity)
R=(-infinity, 4]
Step-by-step explanation:
I think that 2 is an exponent so you function is f(x)=-3(x-5)^2+4
So if this is the case this is a parabola open down when a vertex of (5,4).
Visualize or draw a rough picture of that because that is all you need to answer this question.
The domain for a parabola function is always all real numbers (do notice I said parabola function).
The range for this parabola is (-infinity, 4] since open down and the highest point has y value 4.
Answer: x=14
Step-by-step explanation:
1. Isolate x. Multiply both sides by 7. You should get 28=2x.
2. Divide each side by 2. You should then get 14=x.
The trigonometric Identities Cos 30° cos 45° - sin 30° sin 45° when simplified gives; ((√3) - 1)/2√2
<h3>How to solve Trigonometric Identities?</h3>
We want to solve the trigonometric Identity;
Cos 30° cos 45° - sin 30° sin 45°
We know that the trigonometric values of these in surd form are;
Cos 30° = (√3)/2
cos 45° = 1/√2
sin 30° = 1/2
sin 45 = 1/√2
Thus;
Cos 30° cos 45° - sin 30° sin 45° = ((√3)/2 * 1/√2) - (1/2 * 1/√2)
= ((√3)/2√2) - (1/2√2)
= ((√3) - 1)/2√2
Read more about Trigonometric Identities at; brainly.com/question/7331447
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She starts at 10:00am.
Since she took 3hrs and 30 minutes to bake, all you have to do is go back 3 hours (10:30) then back 30 minutes (10:00)
Answer: ...
Step-by-step explanation:
