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r-ruslan [8.4K]
3 years ago
9

PLEASE HELP ME SOMEONE

Mathematics
1 answer:
n200080 [17]3 years ago
5 0

Answer:

Option 2: 27 is the correct answer.

Step-by-step explanation:

Given functions are:

f(x) = x^2-2\\g(x) = 4f(x) - 1

As we can see that the function g(x) in written in terms of f(x), first of all we have to find g(x) by putting the value of f(x) in g(x)

So putting f(x) = x^2-2 in g(x)

g(x) = 4(x^2-2)-1\\= 4x^2-8-1\\=4x^2-9

As g(-3) has to be found, putting x=-3 in g(x)

g(-3) = 4(-3)^2-9\\= 4(9)-9\\=36-9\\=27

Hence

Option 2: 27 is the correct answer.

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Greg is 10 years older than his brother gabe.he is also 3 times as old as gabe.how old is gabe
Elza [17]

Answer:

The answer is below

Step-by-step explanation:

Let us assume that the age of Greg's brother (Gabe) is x years, and let Greg's age by y years. Since Greg is 10 years older than his brother gabe, then:

y = x + 10           (1)

Also. Greg is 3 times as old as Gabe, hence:

y = 3x                 (2)

From equation 1 and equation 2:

y = x + 10 = 3x

Hence:

3x = x + 10

Subtracting x from both sides gives:

3x - x = x + 10 - x

2x = 10

Dividing by 2:

2x/2 = 10/2

x = 5 years

y = x + 10 = 5 + 10 = 15 years

Therefore Gabe is 5 years old and Greg is 15 years old

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3 years ago
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4 0
4 years ago
Sum of two numbers is 95. If one exceeds the other by 25,<br> find the numbers.<br><br> Pls answer
Nitella [24]

Answer:

60 and 35

Step-by-step explanation:

Let:

First number = x

Second number = y [ y > x ]

According to question:

x + y = 95

= > y = 95 - x .... ( i )

y = x + 25 ...... ( ii )

From ( i ) and ( ii ) we get:

95 - x = x + 25

= > 2x = 70

= > x = 35

y = 95 - x [ x = 35 ]

= > y = 60

Therefore numbers are 60 and 35.

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