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3 years ago

8

Can you solve it. Pls pls

2 answers:

jonny [76]3 years ago

8 0

Answer is C hoped it helped :)

prisoha [69]3 years ago

5 0

Answer:

C

Step-by-step explanation:

Don't know how to explain..

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100 points PLEASE ANSWER<br> ASAP thank you so much<br> Please show work

vivado [14]

Answer:

The mistake is that the equation on both sides is multiplied by 8. Both sides should be divided by 8.

Step-by-step explanation:

$8x^2-x-1=0$
$8x^2-x=1$ Divide both sides of the equation by 8
$x^2-\frac{1}{8} x=\frac{1}{8}$
$x^2-\frac{1}{8} x+?=\frac{1}{8} +?$ Add the same value to both side
$x^2-\frac{1}{8} x+\frac{1}{256} =\frac{1}{8} +\frac{1}{256}$
Use $a^2-2ab+b^2=(a-b)^2$
$(x-\frac{1}{16} )^2 = \frac{33}{256}$
$x-\frac{1}{16}=+-\frac{\sqrt{33} }{16}$
$x_{1} =\frac{-\sqrt{33}+1 }{16}$
$x_{2} =\frac{\sqrt{33}+1 }{16}$

5 0

2 years ago

Read 2 more answers

At 6:00 AM there where 400 gallons of water in the pool.At 11:00 AM there were 2400 gallons of water in the pool. What is the ra

kirza4 [7]

Answer:

The rate of change of water in the pool is 400 gallons / hour

Step-by-step explanation:

We are given

At 6:00 AM:

there were 400 gallons of water in the pool

so,

$N_1=400$

At 11:00 AM:

there were 2400 gallons of water in the pool

so,

$N_2=2400$

now, we can find time between

t=11-6=5 hours

now, we can use formula

rate of change of water in pool is

=( change in water quantity)/( total time)

so, we get

$=\frac{N_2-N_1}{t}$

now, we can plug values

$=\frac{2400-400}{5}$

$=\frac{2000}{5}$

$=400$

So,

The rate of change of water in the pool is 400 gallons / hour

4 0

3 years ago

The formula: y-y1 = m (x-x1) is known as:

jarptica [38.1K]

Answer:

point slope form.

Step-by-step explanation:

this is different from slope intercept form. use these when dealing with cartesian graphs using slope and points along x, y

5 0

3 years ago

Simplify 30x^3y/6xy^5z^0

mr Goodwill [35]

Answer:

$5x^2/y^4$

Step-by-step explanation:

$30x^3y/6xy^5$

$30x^2/6y^4$

$5x^2/1y^4$

5 0

3 years ago

Jeannine runs for 45 minutes every day for exercise. it takes her 8 minutes to run a mile, and she spends 5 minutes stretching h

ki77a [65]

8x5<45 So the fewest of miles she could run is 1, 2, 3, or 4 miles
-5 -5
------
8x<40
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8 8
x<5
--

6 0

4 years ago