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3 years ago

5

Please help me with this geometry question? Picture is there

1 answer:

Harlamova29_29 [7]3 years ago

3 0

It is a Kite because right now we are learning about that

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A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?

pav-90 [236]

Y = kx

(-8, -6)

k = 3/4

5 0

3 years ago

Read 2 more answers

If 2x2 + y2 = 17 then evaluate the second derivative of y with respect to x when x = 2 and y = 3. Round your answer to 2 decimal

Vera_Pavlovna [14]

Answer:

y''=-1.26

Step-by-step explanation:

We are given that $2x^2+y^2=17$

We have evaluate the second order derivative of y w.r.t. x when x=2 and y=3.

Differentiate w.r.t x

Then , we get

$4x+2yy'=0$

$2x+yy'=0$

$yy'=-2x$

$y'=-\frac{2x}{y}$

Again differentiate w.r.t.x

Then , we get

$2+(y')^2+yy''=0$ $(u\cdot v)'=u'v+v'u)$

$2+(y')^2+yy''=0$

Using value of y'

$yy''=-2-(-\frac{2x}{y})^2$

$y''=-\frac{2+(-\frac{2x}{y})^2}{y}$

Substitute x=2 and y=3

Then, we get $y''=-\frac{2+(\frac{4}{3})^2}{3}$

$y''=-\frac{18+16}{9\times 3}=-\frac{34}{27}$

Hence,y''=-1.26

6 0

3 years ago

Two brothers are sharing a certain sum of money in the ratio 2/3 : 3/5, if the largest share was Gh¢500.00. How much was shared

lina2011 [118]

Given:

Two brothers are sharing a certain sum of money in the ratio $\dfrac{2}{3}:\dfrac{3}{5}$ .

The largest share was Gh¢500.00.

To find:

The total amount shared between them.

Solution:

It is given that, two brothers are sharing a certain sum of money in the ratio $\dfrac{2}{3}:\dfrac{3}{5}$ .

First we need to make the denominators common.

$Ratio=\dfrac{2\times 5}{3\times 5}:\dfrac{3\times 3}{5\times 3}$

$Ratio=\dfrac{10}{15}:\dfrac{9}{15}$

$Ratio=10:9$

So, the two brothers are sharing a certain sum of money in the ratio 10:9.

Let the shares of two brothers are 10x and 9x respectively. So, the larger share is 10x.

It is given that the largest share was Gh¢500.00.

$10x=500$

$x=\dfrac{500}{10}$

$x=50$

Now, the total amount shared between them is:

$Total=10x+9x$

$Total=19x$

$Total=19(50)$

$Total=950$

Therefore, the total amount shared between them is Gh¢950.00.

5 0

3 years ago

I need help with question 2

ella [17]

4 fiction to 1 nonfiction
(4 x 7 = 28) fiction to (1 x 7 = 7) nonfiction

Therefore, the required ratio is 28 to 7

7 0

3 years ago

Please help me with 25-29!!

vredina [299]

25-29 ok so first do 9-5 equals 4

4 0

3 years ago