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3 years ago

Someone please answer my newest question this. free. points.

Mathematics

2 answers:

Solnce55 [7]3 years ago

3 0

Answer:

okie, i gotchu

Step-by-step explanation:

Softa [21]3 years ago

3 0

Answer:

*thumbs up*

OK, thanks.

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Solve by completing the square <br><br> 3x^2-7x-1

docker41 [41]

Answer:

$x=\frac{7+\sqrt{61}}{6},\:x=\frac{7-\sqrt{61}}{6}$

Step-by-step explanation:

$a=3,\:b=-7,\:c=-1:\quad x_{1,\:2}=\frac{-\left(-7\right)\pm \sqrt{\left(-7\right)^2-4\cdot \:3\left(-1\right)}}{2\cdot \:3}$

$x=\frac{7+\sqrt{61}}{6},\:x=\frac{7-\sqrt{61}}{6}$

3 0

3 years ago

Please help with question 14!! BRAINLIEST to correct answer!

dexar [7]

Answer: true

Step-by-step explanation:

Hope this helps

8 0

3 years ago

Select the correct answer from each drop-down menu.

Korolek [52]

Answer:

The y-intercept is -2 and the equation is y=x-2

Step-by-step explanation:

-That's where the line crosses the y axis.

-The equation is y= x -2 because it has a rise/run of 1/1 which is just 1 and the y intercept is -2

( I'm so sorry I totally missed the second part of the question lol)

8 0

3 years ago

The standard deviation for a set of data with mean 25 and variance 16 is?

svet-max [94.6K]

Answer:

Standard deviation = 4

Step-by-step explanation:

Given the following data;

Mean = 25

Variance = 16

To find the standard deviation;

Mathematically, standard deviation is given by the formula;

$Standard \; deviation = \sqrt{variance}$

Substituting into the formula, we have;

$Standard \; deviation = \sqrt{16}$

Standard deviation = 4

8 0

3 years ago

A water desalination plant can produce 2x10^6 gallons of water in one day. How many gallons can it produce in 8.7 days?

arlik [135]

Answer:

2x10^6 = 2 Million gallons of water.

8.7 days = 209 hours

209 x 2,000,000/24 = 17,416,666.6667 Gallons of Water in 8.7 days

Step-by-step explanation:

6 0

3 years ago

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