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3 years ago

Enter your answer as a number like this:42

Mathematics

1 answer:

NeX [460]3 years ago

3 0

Im not sure if its y=19
y= 6(5)-11
y=30-11
y=19

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If f(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%283%2Bx%29%7D%7B%28x-3%29%7D" id="TexFormula1" title="\frac{(3+x)}{(x-3)}

kati45 [8]

Answer:

$f(a) = \frac{(a+5)}{(a-1)}$

Step-by-step explanation:

Given : $f(x) = \frac{(3+x)}{(x-3)}$

In order to find $f(a+2)$ we will substitute $(a+2)$ for $x$ in the given function, that is :

$f(a) = \frac{(3+a+2)}{(a+2-3)}$

$f(a) = \frac{(a+5)}{(a-1)}$

4 0

4 years ago

Ron gets $5 on the first day at work, the square of that amount on the second day, and three times the amount of the second day

kvv77 [185]

1st day= $5
2nd day = 5^2 = $25
3rd day = 25×3= $75
5 + 25 + 75 = $105

4 0

4 years ago

HELP

Scrat [10]

Answer:

Step-by-step explanation:

8 0

3 years ago

Triangle DEF is congruent to right triangle GHI with a right angle at vertex H. If the slope of DE is –2, what must be true?

taurus [48]

The slope of HI is 1/2

The slope of EF is 1/2

Solution:

Given that,

Triangle DEF is congruent to right triangle GHI

Which means,

These pairs of angles are congruent

{D, G}, {E, H}, and {F, I}

In triangle DEF, E is a right angle

This means that the line segments $\overline{DE}\ and\ \overline{EF}$ are perpendicular.

We know that,

Product of slope of a line and slope of line perpendicular to that line is equal to -1

Given that,

Slope of DE = -2

$\text{ Slope of DE } \times \text{ slope of EF} = -1\\\\-2 \times \text{ slope of EF} = -1\\\\\text{ slope of EF} = \frac{1}{2}$

Since the sides EF and HI are congruent,

Slopes of parallel lines are equal

$Slope\ of\ HI\ = \frac{1}{2}$

Thus, Slope of HI is 1/2

5 0

4 years ago

G(x) = -x^3+4 f(x)=4x-2 find (f-g) (3x)

sukhopar [10]

Answer:

(f-g) (3x)=27x^3+12+2

Step-by-step explanation:

First lets write the following:

(f-g) (3x)= f(3x)-g(3x)

Now we need to find equivalent expression for f(3x) and for g(3x), we will obtaine them by evaluating 3x instead of x in every 'x' appearance.

Wi have>

g(3x)= -27x^3+4

f(x)=12x-2

Now, lets perfomr the desired operation.

f(3x)-g(3x)=27x^3+12+2

7 0

3 years ago