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3 years ago

-1/2(2x-6)+9=-8 answer

Mathematics

2 answers:

luda_lava [24]3 years ago

6 0

Answer:

The answer is actually 15 so false

Step-by-step explanation:

I found it on a site

Oxana [17]3 years ago

5 0

Answer:

x= 20 i think sorry if it's wrong⊙﹏⊙

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if the recipe takes 60 minutes to cook at a temperature of 350 degrees how many minutes would it take at 200 degrees

Lady_Fox [76]

Answer:

34.28 minutes

Step-by-step explanation:

60:350=x:200

12000=350x

x=34.28

5 0

3 years ago

Read 2 more answers

There are only green pens and red pens in a box. there are 3 more red pens than green pens in the box. sheila is going to take a

e-lub [12.9K]

Answer: 6 or 9

Step-by-step explanation:

Given the following :

Let the number of green pens = x

Number of red pens = x + 3

Probability of picking same color = 17/35

Taking two pens at random; probability of picking two pens of same color.

Probability of picking red on first pick then red on second pick ; or picking blue on first pick then blue on second pick

Probability = (Required outcome / Total possible outcomes)

Total number of pens = x + x + 3 = 2x + 3

Probability of picking red then red:

P(red first) = (x+3)/2x+3

P(red second) = x+3-1 / 2x+3-1 = (x+2)/2x+2)

Therefore, probability of red then red =

(x+3)/(2x+3) × (x+2)/2x+2)

= (x+3)(x+2) / (2x+3)(2x+2)

Probability of green then green:

P(first green) = x/(2x+3)

P(second green) = (x-1) / (2x+3-1) = (x-1) / (2x+2)

P(green then green) = x(x-1)/(2x+3)(2x+2)

Therefore,

[(x+3)(x+2) / (2x+3)(2x+2)] + [x(x-1)/(2x+3)(2x+2)] = 17/35

(x+3)(x+2)+x(x-1) / (2x+3)(2x+2) = 17/35

Cross multiply :

35(x+3)(x+2)+x(x-1) = 17(2x+3)(2x+2)

35(2x^2 + 4x + 6) = 17(4x^2 + 10x + 6)

70x^2 + 140x + 210 = 68x^2 + 170x + 102

70x^2 - 68x^2 + 140x - 170x + 210 - 102 = 0

2x^2 - 30x + 108 = 0

Now we have a quadratic equation which can be factoeized used using any known factorization method.

Factorizing this, we get

(x-6) = 0 or (x-9) = 0

x = 6 or x = 9

6 0

3 years ago

In this figure please see questions

labwork [276]

Answer:

15,700

Step-by-step explanation:

The formula is 3.14(r^2)h

Hope this helped :)

3 0

2 years ago

If f(x) = 8x2 − x3, find f'(2) and use it to find an equation of the tangent line to the curve y = 8x2 − x3 at the point (2, 24)

Ymorist [56]

Take derivitive to find slope
$f'(x)=16x-3x^2$

at x=2
$f'(2)=16(2)-3(2)^2$
$f'(2)=32-3(4)$
$f'(2)=32-12$
$f'(2)=20$

so the slope of f(x) at the point (2,24) is 20

use point slope form
the equation of a line that passes through the point $(x_1,y_1)$ and has a slope of m is
$y-y_1=m(x-x_1)$
we are given that the slope is 20 and the point is (2,24)

the equation is
$y-24=20(x-2)$
simplify into different form yourself if needed

3 0

3 years ago

Please help 10 points 1 question

gregori [183]

Answer:

ty for point have a nice day po

4 0

2 years ago