4 years ago

Can someone please help me on number 5

Mathematics

1 answer:

Y_Kistochka [10]4 years ago

8 0

Answer:

can i have phone number

Step-by-step explanation:

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PLEASE HELP PLEASE HURRY!!!!!!!!! BRAINLIEST AVAILABLE

zalisa [80]

Rule for 1 is the rule for 1 is 14 times 3.5^x and it is exponential

The second one is is also exponential and the rule is 32 times .25^x and the last one is is linear and the rule is 5x+-4

3 0

4 years ago

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A/14=6.8 Please help me?

nasty-shy [4]

A=95.2
because 6.8 x 14=95.2
and 95.2/14 is 6.8

7 0

3 years ago

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18. Find the center, vertices, and foci of the ellipse with equation x squared divided by 225 plus y squared divided by 625 = 1.

KengaRu [80]

Answer:

Center (0,0)

Vertices (-15,0), (15,0), (0,-25), (0,25)

Foce (0,-20), (0,20)

Step-by-step explanation:

You are given the ellipse equation

$\dfrac{x^2}{225}+\dfrac{y^2}{625}=1$

The canonical equation of ellipse with center at (0,0) is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

So,

$a^2=225\Rightarrow a=15\\ \\b^2=625\Rightarrow b=25$

Hence, the center of your ellipse is at (0,0) and the vertices are at points (-15,0), (15,0), (0,-25) and (0,25)

This ellipse is strengthen in y-axis, so

$c=\sqrt{b^2-a^2}=\sqrt{625-225}=\sqrt{400}=20$

and the foci are at points (0,-20) and (0,20).

6 0

3 years ago

32 over 36 in simplest form

noname [10]

Answer is:

8/9

4 goes into 32 8 times

4 goes into 36 9 times

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Which of the following is a radical equation? X+5 - 12 x2 = 16 3+xV7-13 7x = 14

NemiM [27]

Answer:

3+x sqrt 7 -13 is a radical equation.

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3 years ago