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3 years ago

Help.........................

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

7 0

Answer:

solution

here,

Step-by-step explanation:

f={(2,1/2), ( 3, 1/3) , (4, 1/4)}

Range = { / (\ frac 12\) , \ (\ frac 13\) ,

\( \ frac 14\ )}

Inverse function ( f-^1 ) = {( 1/2, 2) ,( 1/3 ,3) , 1/4, 4 )} is the required answer

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What are the coordinates of the triangle after a dilation with a scale factor of 2? Center it at (2, 2) .

Elodia [21]

Dilation of a point P(x,y) with scale factor s centred at (p,q) is given by
P'=(p+s*(x-p),q+s*(x-q))

Substituting
s=2, p=2,q=2
P'=(2+2*(x-2),2+2*(y-2))

P P'
(2,4) (2+2(2-2), 2+2*(4-2)) = (2, 6)
(0,6) (2+2(0-2), 2+2*(6-2)) = (-2, 10)
(-3,3) (2+2(-3-2), 2+2*(3-2)) = (-8, 4)

7 0

3 years ago

Read 2 more answers

Use multiplication in the distributive property to find the quotient 252 divided by 9

ira [324]

252 divided by 9 is 28

Firstly, I muplity 20 and 9.

I have 180.

Then I also muplity 8 and 9.

I got 72.

Then I add 72 and 180 which got me 252.

(I hope this helped!)

8 0

3 years ago

I need help with these questions For 21) A:y=x+4 B:y=2x C:2x+2 D:2/3x+1

gtnhenbr [62]

19.
Option (B) is the correct one.

Explanation:

The equation of line be is ,
y = 2x-4,

we have general equation give by,
y = mx +c

wherr m is the slope of the line and x and y are the coordinates changing,

Comparing these two we get the slop of line B as 2.

A thing you need to know here that product of slopes of a line perpendicular to another is -1.
Using this relation,

The slope of line a will be -1/2.

Let A pass through a coordinate (x,y).

Now,

Slope will be give by,
$\frac{y - 1}{x +2} = - \frac{1}{2} \\ y - 1= - \frac{x}{2} - 1 \\ y = - \frac{x}{2}$

20.
Option (A) is the correct one.

How?:

Equation of line B is y = 3x-1.

Once again using the general equation for a line,
y =mx+c
Slope of B will be 3.

Now for a pair of parallel lines their slopes are equal.

So,
Slope of A must also be 3.

Applying the generation equation for a line on A gives,

y = 3x+c

Since A is passing though coordinates (2,4) the values must satisfy this equation,

So we have,

$4 = 2(3) + c \\ c = 4 - 6 = - 2$
Now that we have value for c.
We can get the the equation we need.
So we have,

y = 3x -2.

Hope it helps.

5 0

4 years ago

Bh+hr=25 solve for r please work it out step by step

denis23 [38]

So firstly, factor out h on the left side: $h(b+r)=25$

Next, divide both sides by h: $b+r=\frac{25}{h}$

Lastly, subtract both sides by b and your answer will be $r=\frac{25}{h}-b$

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3 years ago

Read 2 more answers

An isosceles triangle has an angle of 70°. what are the possible values of the other two angles?

IRINA_888 [86]

Answer:

55 and 55 or 70 and 40

Step-by-step explanation:

A triangle has 180o and an isosceles triangle has two angles that are the same. As 70 is less than half, we have a couple of possible solutions to this. So one possible solution is 70-55-55. So the other possible solution is 70-70-40.

3 0

3 years ago

Help.........................​

Help.........................