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aliina [53]
3 years ago
9

Which statement about 2(×+4) is true ?​

Mathematics
2 answers:
ahrayia [7]3 years ago
8 0
2x + 8 would be the simplified version of this question
saw5 [17]3 years ago
3 0

Answer:

The answer is 2x + 8

Step-by-step explanation:

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How many solutions does the following equation have?<br> 14x + 12] = 0
Marysya12 [62]

Answer:

x=-\frac{6}{7}

It has one solution

Step-by-step explanation:

14x + 12] = 0\\\\14x+12=0\\\mathrm{Subtract\:}12\mathrm{\:from\:both\:sides}\\14x+12-12=0-12\\\\Simplify\\14x=-12\\\\\mathrm{Divide\:both\:sides\:by\:}14\\\frac{14x}{14}=\frac{-12}{14}\\\\Simplify\\x=-\frac{6}{7}

8 0
3 years ago
Plz help me. Im stuck on this question
vladimir1956 [14]

Answer:

4b + 10c= T

Step-by-step explanation:

6 0
3 years ago
A cannon ball shoots out from a cannon that is 28 inches long at 2700 ft s. What is the
Reika [66]

Answer:

a = 1565217.39 ft / s ^ 2

t = 0.001725 seconds

Step-by-step explanation:

The first thing is to use the same system of units therefore we will pass the 28 inches to feet, like this:

28 in * (1 ft / 12 in) = 2.33 ft

Now yes, we can continue, we have the following data:

vi = 0

vf = 2700 ft / s

the equations in this case are as follows:

vf = vi + a * t

vf = a * t

rearranging for a

a = vf / t (1)

now with the position equation we know that:

x = vi * t + (a * t ^ 2) / 2

x = (a * t ^ 2) / 2 (2)

now replacing (1) in (2), we are left with:

x = (vf / t) * (t ^ 2) / 2

knowing that x would be 2.33 ft, which is when the cannonball exits the cannon.

2.33 = 2700 * t / 2

t = 2.33 * 2/2700 = 0.001725 seconds.

and now replace in (1)

a = vf / t = 2700 / 0.001725 = 1565217.39 ft / s ^ 2

3 0
3 years ago
A tank pumps out liquid at a rate of 12 gallons every 20 days. What is the unit rate in gallons per week?
pashok25 [27]

Answer:

4.2

Step-by-step explanation:

simplify 12 and 20 to 6 and 10 then divide 6 by 10 and multiply by 7 to get the answer.

8 0
3 years ago
Jack bought a set of golf clubs for $250 and received a discount of $20 how much was the discount
Airida [17]

percent discount = (discount)/ original * 100

                             = (20)/250 * 100

                            =.08*100

                            = 8 percent

He got an 8 percent discount

                           

7 0
3 years ago
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