3 years ago

Help with number 6. G is the wrong answer!!

Mathematics

2 answers:

Lana71 [14]3 years ago

8 0

The answer is 12... You added 6 to get -3 but it ask for a positive 3 so you just double that and get 3

Alisiya [41]3 years ago

7 0

F is the answer because -9+12=3

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What is the sign of f on the interval -2

TEA [102]

Answer:

$f$ is sometimes positive and sometimes negative.

Step-by-step explanation:

$f(x)=(x-3)(x+2)(x+4)(x+4)(x-1)(2x-9)$

Take $x=-1\in(-2,\frac{9}{2})\ as-2$

$f(-1)=(-1-3)(-1+2)(-1+4)(-1-1)(-2-9)\\\\=(-4)(1)(3)(-2)(-11)\\\\=-264\\\\f(-1)$

Take $x=2\in(-2,\frac{9}{2})\ as\ -2$

$f(2)=(2,-3)(2+2)(2+4)(2-1)(2\times2-9)\\\\=(-1)(4)(6)(1)(-5)\\\\=120\\\\f(2)>0$

Hence $f(x)$ for $x=-1$ and $f(x)>0$ for $x=2$

So $f$ is sometimes positive and sometimes negative in the interval.

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3 years ago

Given the following functions f(x) and g(x), solve f[g(7)] and select the correct answer below:

Degger [83]

F(g(7))= f(2×7+2)= f(16)= 4×16+21=85

Therefore: the answer is 85

Hope that helps!!

7 0

3 years ago

Read 2 more answers

The quotient of two and five times a number

trasher [3.6K]

Answer: 2 / 5x
Explanation:

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3 years ago

There are 22 animals in the barn. Some are geese and some are goats. There are 82 legs in all. How many of each animal are there

Free_Kalibri [48]

Let the number of geese be x.

Then number of goats is 22-x.

A goose has 2 legs, and a goat has 4.

There are a total of 82 legs.

So,

2x + 4(22-x) = 82

2x + 88 - 4x = 82

-2x = -6

x = 3

There are 3 geese and (22-3=) 19 goats.

Please mark Brainliest if this helps and feel free to ask doubts!

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3 years ago

I leave good reviews

Illusion [34]

Answer:

I am so not good at math at all

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4 years ago