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NeX [460]
3 years ago
5

There are 70 fish in the tank. Half of the fish have orange spots and 1/5 of the remaining fish have orange and black spots. How

many fish have orange and black spots?
Mathematics
1 answer:
Feliz [49]3 years ago
8 0

Answer:

7 orange and black fish

Step-by-step explanation:

a fifth of the remaining fish is 7 because you are doing 35*1/5. 35 is the remaining number of fish because already half of the other fish is 35 and they are orange

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Help please!!!!!!!! It’s pre cal
tino4ka555 [31]

Answer:

No, the inverse function does not pass the vertical line test.

Step-by-step explanation:

Remember that h(x)=y. To find the inverse of our function we are going to invert x and y and solve for y:

h(x)=x^2+3

y=x^2+3

x=y^2+3

x-3=y^2

y=\pm\sqrt{x-3}

h^{-1}(x)=\pm\sqrt{x-3}

Now we can graph our function an perform the vertical line test (check the attached picture).

Remember that the vertical line test is a visual way of determine if a relation is a function. A relation is a function if and only if it only has one value of y for each value of x. In other words, a relation is a function if a vertical line only intercepts the graph of the function once.

As you can see in the picture, the vertical line x = 15 intercepts the function twice, so the inverse function h(x) is not a function.

We can conclude that the correct answer is: No, the inverse function does not pass the vertical line test.

6 0
3 years ago
Read 2 more answers
I NEED HELP NOW PLZ!!!!
nikitadnepr [17]

Answer:

option D is correct

Step-by-step explanation:

Hope it helps you

3 0
3 years ago
Maradee works at Cox's Jewelers for $7.50 per hour with time-and-a-half for all hours over 40 in a week. Thus, her weekly salary
BigorU [14]

Answer:

a) 395.725

b) 378.75

c) 8.8

Step-by-step explanation:

a) S(8.5) = 11.25(8.5) + 300 = 395.625

b) if she worked 47 hrs, that means there were 7 overtime, h=7 and we have to find S(7).

S(7) = 11.25(7) + 300 = 378.75

c) her salary was 398.61, that means S(h) = 398.61 and we have to find h.

398.61 = 11.25(h) + 300

98.61 = 11.25(h)

h = 98.61 / 11.25

h= 8.8

3 0
3 years ago
2.
Reptile [31]

Answer:

r =.3 is wrong for 2x = -6. you divide -6/2 which = -3 so r = -3

5 0
3 years ago
What is 34/40 in simplest form
vampirchik [111]

Answer: 17/20

<u>Divide</u>

34/40 ÷ 2/2 = 17/20

Divide each side by 2 so it'll be 2/2.

6 0
3 years ago
Read 2 more answers
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