is a/b +b/c rational number
​

Answer:

See attached file.

Step-by-step explanation:

We want to see where Oliver is making a mistake in his claim.

The correct option is the first one, the simplification on the last step is wrong.

We start with the expression:

[tex]tan( \frac{3*pi}{4} + x)[/tex]

Now, by looking at Olvier's work, we can see that on the last step he writes:

[tex]\frac{-1 + tan(x)}{1 + tan(x)} = -1[/tex]

This is clearly wrong, as the numerator and the denominator are dont simplify to -1 (this only happens if the numerator is -1 times the denominator), so the left side can't be equal to -1, it actually would be simplified to:

[tex]\frac{-1 + tan(x)}{1 + tan(x)} = \frac{-1 +1 - 1 tan(x)}{1 + tan(x)} = \frac{-2 + 1 + tan(x)}{1 + tan(x)} \\\\\frac{-2 + (1 + tan(x))}{1 + tan(x)} = \frac{-2 }{1 + tan(x)} + \frac{ 1 + tan(x)}{1 + tan(x)} = \frac{-2 }{1 + tan(x)} + 1[/tex]

Then the correct option is the first option.

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Answer:

look at the photo..........

Answer:

4, -4, 36

Step-by-step explanation:

a) a*2 = -2*-2 = 4

b) a^2 = -2^2 = -4

c) a*3^2= 3*-2^2 = -36

Answer:As I know the answer is coal

Step-by-step explanation:

Please votes me 5 stars,1 hearts and mark as Brainliest for me .Thanks

The value of Δy using the function y= 5x^3 as x goes from -2 to 1 is; Δy = 45

The question requests that Δy be computed according to the function, y = 5x³ as x goes -2 to 1.

where:

and

Therefore,

Δy = 45.

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Answer:

Answer to the first part:  8a³b + 4ab

Step-by-step explanation:

Perimeter = distance around the three sides

P = 6a³b + 2a³b + 4ab

P = (6a³b + 2a³b) + 4ab           add like terms

P = 8a³b +4ab                          Simply

The value of the perimeter and area of the triangle are,

20.52 cm²  and 28.68 cm

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Now, By Using Pythagoras theorem to find the base of the triangle as;

a² = 6² - 3²

a ² =  27

a = √27

And, b² = 9² - 3²

b² =  72

b = √72

Hence, Base = √27 + √72

= 13.68

So, We get;

Area = 0.5 x 13.68 x 3

Area = 20.52 cm²  

And, The value of perimeter is,

Perimeter = 9 + 6 + 13.68

= 28.68

Thus, The value of the perimeter and area of the triangle are,

20.52 cm²  and 28.68 cm

Learn more about the triangle visit;

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Rigid transformation do not alter the sides and angle measurements of a shape.

The true statements are:

From the graph, we have the following highlights

Hence, the first three statements are not congruent, while the last statement is congruent.

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Answer:

$0.493

Step-by-step explanation:

1.48 divided by 3

Answer:

1/5

Step-by-step explanation:

hope this helps!

Answer:

Step-by-step explanation:

Answer:

x>5

Step-by-step explanation:

If you plug in 5,  5-8>-3 that is -3>-3 so you know that x has to be greater than 5.

Answer:

.47 because 7/15 is 0.466

Step-by-step explanation:

Answer:

the is k=-0.4

Step-by-step explanation:

sorry if I did it wrong

Answer:

[tex]k = -\frac{2}{5}[/tex]

I can't see the answer choices. Sorry, if I'm wrong.

Answer:

11

Step-by-step explanation:

17-6=11

big brain

Answer:

11

Step-by-step explanation:

17-11=6 the smallest number is 11

Answer:

12.4

Step-by-step explanation:

do 9x11 (the cross)

then divide that by 8, so 99/8

that equals 12.375 which rounded to the nearest tenth is 12.4

Answer:

$2.50 for 24 lb

Step-by-step explanation:

only 10 cents ish per pound

Step-by-step explanation:

(a) f (g (- 5)

→ f (-5)g

= - 5fg

(b) (g o f ) (4)

Move 4 left to the g o f

= 4gof

Answer:-5fg, and 20g

Step-by-step explanation:

I’m only in eighth grade but I’ma try

Re-order terms so constants are on the left

((−5))

(−5)

Eliminate redundant parentheses

there are none

Re-order terms so constants are on the left

-5fg

Re-order terms so constants are on the left

(5G)(4)

Eliminate redundant parentheses

5g(4)

Multiply the numbers

20g

Answer:

y = 1/2x - 1

Step-by-step explanation:

y2 - y1 / x2 - x1

-2 - 2 / -2 - 6

-4 / -8

= 1/2

y = 1/2x + b

-2 = 1/2(-2) + b

-2 = -1 + b

-1 = b

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

You have the relation ...

  (left side number) × (top number) = (number in the area box)

This means ...

  (top number) = (number in the area box)/(left side number)

  top number = 680/17 = 40 . . . number in the quotient box

and ...

  17 × 8 = number in the area box = 136

__

The number in the right-side box is the remainder, the difference between the dividend 820 and the sum of the numbers in the other two area boxes.

  820 -680 -136 = 4 . . . . number in the right-side box

Answer: A

Step-by-step explanation:

A is not a function because in order to be a function. It has to pass the vertical line test. based on the graph, it doesn't pass the test. You can search up the graph on desmos.

Answer:

The slope in this equation is 2x, so answer is 2.

Step-by-step explanation:

8x-4y-9=0

-8x -8x

-4y-9 = -8x

+9 +9

-4y = -8x+9

Divide by 4 on both side to have y by itself and you get

y = 2x - 9/4

Answer:

x = 14.5

can also be written as;

x = 29/2

Step-by-step explanation:

Answer:

steps below

Step-by-step explanation:

5-1)  Center of dilation: intersect of AA' and BB' (or CC' ...) (M in the graph)

5-2) scale factor = A'B' / AB = 6/4 = 1.5

5-3) ratio of all corresponding sides are equal = 1.5 and parallel, it also means all corresponding angles are similar.

Answer:

B

Step-by-step explanation:

because you are looking for the car that cost the most