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3 years ago

Factor completely 3x2 + 9x − 3.

2 answers:

7 0

Factor completely: 3x2 + 9x − 3

3x2 + 9x − 3 (a 3 can be divided from each number)
3(x2+3x-1)

can x2+3x-1 be factored out anymore? no

3(x2+3x-1) is the answer

padilas [110]3 years ago

5 0

Answer:

Option (2) is correct choice.

Step-by-step explanation:

Given polynomial $3x^2+9x-3$

We have factorize the given polynomial and choose the correct from options given.

Factor are the smallest forms a given number is broken such that the product of factors gives back the number we factorized.

Here, $3x^2+9x-3$

First taking 3 common from whole expression.

$3x^2+9x-3=3(x^2+3x-1)$

Thus, option (2) is correct choice.

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Which system of measurement uses the minim as the basic unit of liquid measure?

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The apothecary system uses the minim as the basic unit of liquid measure and the grain as the basic unit of solid measure.

What is apothecary measurement?

The apothecary system was once a system of weights and measurements used for drug prescription and dispensing.
A pound was divided into 12 ounces in the English version, which also divided an ounce into eight drams or drachms and a dram into three scruples, or 60 grains.

What are the units of the apothecary system?

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6 0

2 years ago

Martha is training for a duathlon, which includes biking and running. She knows that yesterday she covered a total distance of o

umka21 [38]

Answer:

Distance: 6x + 15.5y > 55.5

Time: x + y > 4.5

Step-by-step explanation:

We are given that Martha is training for a duathlon and she covered a total distance of over 55.5 miles in more than than 4.5 hours of training.

Also, she runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

We are to write inequalities representing the distance she traveled and the total time she spent training.

Distance: 6x + 15.5y > 55.5

(formula for distance = speed x time so speeds for running and biking are multiplied by their number of hours)

Time: x + y > 4.5

(she trained for more than 4.5 hours, x hours for running and y hours for biking.

4 0

3 years ago

Solve for u in terms of s, t, and v. t = u + s + v

harina [27]

Answer:

$t = u + s + v \\ \boxed{u = t - s - v}$

u = t-s-v is the right answer.

7 0

2 years ago

My math final please help

spin [16.1K]

Answer:

m∠3 = 56

Step-by-step explanation:

Let's solve for x, first:

x + 9 = 3x - 85

9 = 2x - 85

94 = 2x

94/2 = x

47 = x

Now that we have x-value, we can substitute it in any one of the given equation to find angle 3 since, angle 1, 7 and 3 all are congruent:

=> m∠7 = x + 9

=> m∠7 = 47 + 9

=> m∠7 = 56

Since m∠7 ≅ m∠3

and m∠7 = 56, then

m∠3 = 56

Hope this helps!

6 0

3 years ago

Matt paid $55 at a restaurant. That amount included a 10% tip. What was the check amount before the tip?

marissa [1.9K]

As long as there was no tax, the check amount *before* the tip should be just $55. With the tip, it would be $60.50.

6 0

3 years ago

Read 2 more answers