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2 years ago

Can somebody help with this I will mark you brainly. please show your work

Mathematics

2 answers:

Dvinal [7]2 years ago

7 0

Answer:

4.5

Step-by-step explanation:

360 divided by 80 = 4.5

galina1969 [7]2 years ago

7 0

Answer:

4.5 hours

Step-by-step explanation:

80 mph means that each hour 80 miles were driven

so you can do 360 / 80 = 4.5

proof 80 miles * 4.5 hours = 360 miles

Hope this helps!

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If f(x) = 3LX-2], what is f(5.9)? 9 10 11 12

Black_prince [1.1K]

Answer: 12

Step-by-step explanation:

We know that , the ceiling function y = [x] is also known as the least integer function that gives the smallest integer greater than or equal to x.

For example : For x= 1.5

y = [1.5] =2

For x= 3.64

y = ⌊3.64⌋=4

The given function :

Then, for x= 5.9 , we have

[since [3.9]=4 (least integer function)]

Therefore, the value of f(5.9) is 12

6 0

3 years ago

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(HELP FAST )What is the solution to this system of equations? *

Phantasy [73]

Answer:

(1,3) should be the answer due to the fact that both lines intersect at that point.

Step-by-step explanation:

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2 years ago

The base and the height of a rectangle are represented by the expressions below.

PIT_PIT [208]

The length of the base is 27 and the length of the height is 17.

To find the answer, you need to add up each side twice and set it equal to 88.

x-6+x-6+x+4+x+4=88

That is equal to: 4x - 4 = 88

Add 4 to both sides: 4x = 92

Divide by 4: x = 23

Now plug 23 in for x:

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7 0

3 years ago

Rolling a single and fair six-sided die, what is the probability that you roll an even number?

yawa3891 [41]

Answer:

stuf

Step-by-step explanation:

5 0

3 years ago

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Help with 8 and 9??? Please help me out! Correct answers please

Ipatiy [6.2K]

Answer:

8. (-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

9. f(g(x)) = 4x/(1+6x)

Step-by-step explanation:

8. For f(g(x)) to be defined, g(x) must be defined and f(g(x)) must be defined.

g(x) will be defined for all x≠0. f(g(x)) will be defined for g(x)≠4. Solving g(x)=4, we find the value of x is 1/3. (The answer choices give a clue.)

So, the domain of f(g(x)) is all x that is not 0 or 1/3. Only one answer choice makes those particular exclusions:

(-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

9. Substituting the definition of g(x) into the expression for f(x), we get ...

$\displaystyle (f\circ g)(x)=f(g(x))=\frac{2}{g(x)+3}=\frac{2}{\frac{1}{2x}+3}\\\\=\frac{2}{\left(\frac{1+6x}{2x}\right)}\\\\(f\circ g)(x)=\frac{4x}{1+6x}$

4 0

3 years ago