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Bumek [7]
3 years ago
8

Divide : algebraic fractions

Mathematics
1 answer:
ryzh [129]3 years ago
4 0

Answer:  C

<u>Step-by-step explanation:</u>

   \frac{r+5}{r^{2}+5r-14} ÷ \frac{r^{2}+4r-21}{r-2}

= \frac{r+5}{r^{2}+5r-14} * \frac{r-2}{r^{2}+4r-21}

= \frac{r+5}{(r+7)(r-2)} * \frac{r-2}{(r+7)(r-3)}

= \frac{(r+5)(r-2)}{(r+7)(r-2)(r+7)(r-3)}

= \frac{r+5}{(r+7)(r+7)(r-3)}

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Find the deference between
maxonik [38]

Answer:

$5520

Step-by-step explanation:

Given data

Principal=  $24000

Rate=10%

time= 2 years

Firstly, the compound interest is given as

A=P(1+r)^t

A=24000(1+0.1)^2

A=24000(1.1)^2

A=24000*1.21

A=$29040

The simple interest is given as

A=P(1+rt)

A=24000(1+0.1*2)

A=24000(1.2)^2

A=24000*1.44

A=$34560

Hence the difference is

=34560-29040

=$5520

8 0
3 years ago
EASY, ASAP!
Lady bird [3.3K]

Answer:

Number 1: x = 5

Number 2: y = 3, x = 1

Number 3: x = 40

Step-by-step explanation:

For Number 1 you have to keep in mind that quadrilaterals have an interior angle measurement of 360°.

With that in mind, all the angles must add up to 360° (duh).

(20x - 16) + (81) + (16x + 10) + (15x + 30)

20x - 16 + 81 + 16x + 10 + 15x + 30 = 360

That's a bloody mess! We should really combine like terms.

20x <em>- 16 </em>+ <em>81 </em>+ 16x +<em> 10</em> + 15x + <em>30</em>

51x + 105 = 360

That looks a lot better, basic algebra from here, where we droppin' bois?

51x = 255

x = 5

--------------------------------------------------

This one's real easy.

In a parallelogram, the sides opposite from each other are equal, therefore:

2y + 2 = 4y - 4

and

x + 6 = 7x

Both are <em>very </em>easy to solve, here:

2y + 2 = 4y - 4

2y + 6 = 4y

6 = 2y

3 = y

<em>Easy!</em>

x + 6 = 7x

6 = 6x

1 = x

<em>Are you kidding me? This is easy stuff, kid.</em>

--------------------------------------------------

In a Rhombus, in case you didn't know, its diagonals (the lines connecting points diagonal to each other) are ALWAYS perpendicular to one another (intersect at 90°) which means:

2x + 10 = 90

2x = 80

x = 40

--------------------------------------------------

That will be all, ya boi Keith.

4 0
3 years ago
Which graph represents y as a function of x ?
inna [77]
The answer is the H. Graph.
7 0
3 years ago
Read 2 more answers
The figures are similar find X ​
mr Goodwill [35]

Answer:

<h3><em>X=14.4</em></h3>

<em>Step-by-step explanation:</em>

<em>As triangles are similar </em>

<em>The ratio of the sides must be equal</em>

<em>so..</em>

<em />\frac{x}{8} =\frac{9}{5}<em />

<em />x=\frac{9*8}{5}<em />

<em />x=14.4<em />

<em>hope it helps...</em>

<em>have a great day!!</em>

4 0
3 years ago
Tarting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along the
erik [133]
6+12=18

18÷2=9

Emilys average speed is 9mph
6 0
3 years ago
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