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lakkis [162]
3 years ago
8

What is the domain of the function F(x) = 4 cos(2x+1)?

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

Domain: (-inf, inf)

Range: [-4,4]

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A kid has 3 balls he gives his friends 2 how many do they have left
Olin [163]

Answer:

1 left

Step-by-step explanation:

3 - 2 =1 You subtract then u get your answer

Hope this help u

Pls mark brainlist

3 0
3 years ago
Read 2 more answers
How to find all real solutions
AlladinOne [14]
\bf \sqrt{\sqrt{x-5}+x}=5\leftarrow \textit{squaring both sides}
\\\\
\sqrt{x-5}+x=25\implies \sqrt{x-5}=25-x\leftarrow \textit{squaring both sides}
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x-5=(25-x)^2\implies x-5=625-50x+x^2
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0=x^2-51x+630\implies 0=(x-30)(x-21)

and surely you'd know what the roots are

7 0
3 years ago
Help help help help me
scZoUnD [109]

Answer:

Acute

Step-by-step explanation:

Each angle is less than 90 and any angle less than 90 is acute, therefore, we can say without a doubt, that this triangle is acute

6 0
3 years ago
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Consider the parabola with a focus at the point (4,0) and directrix y = 3.
satela [25.4K]

Answer:

answer of your questions

Step-by-step explanation:

The process of obtaining the equation is similar, but it is more algebraically intensive. Given the focus (h,k) and the directrix y=mx+b, the equation for a parabola is (y - mx - b)^2 / (m^2 +1) = (x - h)^2 + (y - k)^2.

7 0
3 years ago
Solve the following quadratic equation<br>x+12x+36 - 16​
Doss [256]

Answer:

x= -2, x= -10

Step-by-step explanation:

x^2 + 12x + 36 = 16

Began by setting this quadratic equation to 0. To do this, in this equation you must subtract.

x^2+12x+20=0

Next, we plug this into the quadratic formula, where a in this case is 1(there is nothing in front of x^2), b is equaled to 12(there is a 12 as the coeefficient of 12x), and c is equaled to 20.

The quadratic formula is as goes:

(-b+-(this means plus or minus)√b^2-4ac)/(2a)

After pluggin in and simplifying, the answer is x= -2 and x= -10

4 0
4 years ago
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