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gogolik [260]
3 years ago
14

Help please ASAP quickly

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

Ok so I created a equation to see how many seconds can you go to get to 180. The equation is 0.4x = 180 and I got 450. Now I concluded from this result the inequality is A, x < 450 because unless you want your submarine to crash in the seafloor you should probably stop before 450 seconds.

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If a(x) = 3x + 1 and b (x) = square root of x-4, what is the domain of (b o a)(x)
Monica [59]

( 1, ∞)  is the domain of (b o a)(x)

<h3>What is Function?</h3>

A function is defined as a relation between a set of inputs having one output each.

According to the question,

a(x) = 3x + 1 \\\\b (x) =\sqrt{x+4}

To find the domain of the composite function,

(b o x) (x) = b(a(x))\\\\(b o x) (x) = b(a(3x-1))\\\\(b o x) (x) = \sqrt{3x+ 1 -4} \\\\(b o x) (x) = \sqrt{3x -3}\\\\

Therefore,

3x - 3 \geq 0\\3x \geq 3\\x \geq 1\\\\

Hence , [ 1, ∞ ] is is the domain of (b o a)(x).

learn more about function here:brainly.com/question/12431044

#SPJ1

8 0
2 years ago
What is the value of the function f(x)=20x when x=0.25?
matrenka [14]
20 times (0.25) equals 5
6 0
3 years ago
12%+35<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B25%20%5Ctimes%2036%7D%20" id="TexFormula1" title=" \sqrt{25 \times 36}
Arada [10]
Well the question is written wrong but I think is 30
6 0
2 years ago
Read 2 more answers
How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!
AysviL [449]
Answer: 16

Explanation:

4 0
2 years ago
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Find the value of this expression if x=-9.
bija089 [108]

Answer:

if x = -9

then, (-9)×(-9) + 3

= 81 +3

= 84

(-9) + 6

= -3

so, ans is = 84/(-3)

= (-84)/3

4 0
3 years ago
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