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Westkost [7]
3 years ago
12

Write the question the symbols represent, then solve it. f(-2)=-3+2x^2

Mathematics
1 answer:
Kitty [74]3 years ago
7 0

Answer:

f(-2) = 5

Step-by-step explanation:

Step 1: Define

f(x) = -3 + 2x²

f(-2) is x = -2

Step 2: Substitute and Evaluate

f(-2) = -3 + 2(-2)²

f(-2) = -3 + 2(4)

f(-2) = -3 + 8

f(-2) = 5

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Abi and Ali shared £35 in the ratio 1 : 6.<br> Work out how much Ali received.
baherus [9]

Answer:

£30

Step-by-step explanation:

To tackle these 'sharing' ratios problems, first find the total amount parts in the ratio.

1 : 6 = 1 + 6 = 7 parts

Now divide the total amount of parts by the total amount of money shared

35 / 7 = 5

Now multiply the answer by the value that is appropriate.

In this case, they want you to work out how much Ali recieved.

Ali's value is 6

6 × 5 = £30

hope this helps :)

4 0
3 years ago
Read 2 more answers
Question
Ahat [919]

Answer:

4 minutes.

Step-by-step explanation:

There are three trains that Rachel has to take to go to her job. The total time is taken by her, on average, 1 hour and 20 minutes i.e. (60 + 20) = 80 minutes.

In his journey, she walks for 15 minutes and a train journey for about 53 minutes.

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Therefore, the average waiting time, in minutes, at each of the three train stations will be \frac{12}{3} = 4 minutes. (Answer)

8 0
4 years ago
Write x^3/2 in radical form
stiv31 [10]

Answer:

Step-by-step explanation:

I think you meant x^(3/2).  This breaks down in at least two ways:

[x^3]^(1/2), or √(x^3)m or √x³), or

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3 0
3 years ago
QUICKKKKKKKK<br> EXPERTS/ACE/TRUSTED HELPERS
umka21 [38]
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4 years ago
Determine if the sequence below is arithmetic or geometric and determine the common difference/ratio in simplest form.
Nana76 [90]

Step-by-step explanation:

this is clearly not a linear sequence (the terms don't have the same difference).

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s2 = s1 × r

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control :

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correct.

6 0
2 years ago
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