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3 months ago

PLEASEE HELPP. Im rlly struggling please help if you can. with steps

Mathematics

2 answers:

Tom [10]3 months ago

8 0

X= 3 ,y= 6 ,z= -1
^Answer^
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form: (3,6,−1)

Nadusha1986 [10]3 months ago

7 0

Answer:

lol

Step-by-step explanation:

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Two quantities are related, as shown in the table:

Rashid [163]

Answer:

$y = \frac{1}{2} x + 2$ .

Step-by-step explanation:

From the given table it is clear that x and y are linearly related.

Now, any two points that satisfy the relation between x and y are sufficient to express the equation.

The first two given points are (2,3), and (4,4).

Therefore, the equation is $\frac{y - 4}{4 - 3} = \frac{x - 4}{4 - 2}$

⇒ $y - 4 = \frac{1}{2} (x - 4)$

⇒ $y - 4 = \frac{1}{2} x - 2$

⇒ $y = \frac{1}{2} x + 2$ . (Answer)

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2 years ago

802.06 expanded form

saveliy_v [14]

in expanded form, it would be 800+2+0.6

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2 years ago

Find the value of k if (x-3) is a factor of P(x)=2x3-5x2+3x+k

blsea [12.9K]

Answer:

k = -18

Step-by-step explanation:

If x-3 is a factor, what this means is that if we substitute;

x = 3 into the equation, we should get 0

This is from the factor theorem

Thus ;

P(3) = 0 = 2(3)^3 -5(3)^2 + 3(3) + k

0 = 54 - 45 + 9 + k

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4 0

2 years ago

John received $0.76 change from a purchase in the drugstore. if he received eight coins, and five of the coins are the same deno

Aliun [14]

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2 years ago

Which two functions are inverses of each other?

liraira [26]

Answer:

Option 3 - f(x)= 4x, $g(x) = \frac{1}{4}x$

Step-by-step explanation:

To find : Which two functions are inverses of each other?

Solution :

Two functions are inverse if $f(g(x))=x=g(f(x))$

Now, we find one by one

1) f(x)= x, g(x) = -x

$f(g(x))=f(-x)=-x\neq x$

Not true.

2) f(x)= 2x, $g(x) = -\frac{1}{2}x$

$f(g(x))=f(-\frac{1}{2}x)=2\times(-\frac{1}{2}x)=-x\neq x$

Not true.

3) f(x)= 4x, $g(x) = \frac{1}{4}x$

$f(g(x))=f(\frac{1}{4}x)=4\times(\frac{1}{4}x)=x$

$g(f(x))=f(4x)=\frac{1}{4}\times 4x=x$

i.e. $f(g(x))=x=g(f(x))$ is true.

So, These two functions are inverse of each other.

4) f(x)= -8x, $g(x) =8x$

$f(g(x))=f(8x)=8\times(-8x)=-64x\neq x$

Not true.

Therefore, Option 3 is correct.

6 0

2 years ago