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vovangra [49]
2 years ago
6

PLEASE HELP!!!!! 15 POINTS

Mathematics
2 answers:
Sever21 [200]2 years ago
8 0

Answer:

yea cants see the picture or video

Step-by-step explanation:

Andru [333]2 years ago
6 0
It’s just a play button I don’t think we can view videos on here sorry :/
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Solve for f<br> -f +2 + 4f = 8 - 3f
Ulleksa [173]

Answer:

f=1

Step-by-step explanation:

Let start off with doing -f plus 4f which gives you 3f. The equation would now be 2+3f=8-3f. Add 3f so you can cancel out the -3f and add the 3f to the other 3f. Now your equation is 2+6f=8. Cancel out do by doing -2. (Don't forget to to it to the 8 also.) Now your equation is 6f=6. Divide 6 from both sides to get 1. (You divide because you want to get f alone.

4 0
3 years ago
A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. 2 marbles are picked at random. What is the probability of fi
taurus [48]
Its a 50%-50% chance that you will be able to pick a red and blue marble without noticing....

8 0
2 years ago
4x + 8 = 32 pleas eexplain
Sedbober [7]

Answer:

x = 6

Step-by-step explanation:

  • Subtract  8 from both sides of the equation
  • Simplify
  • Subtract the numbers
  • Divide both sides of the equation by the same term
  • Simplify
  • Cancel terms that are in both the numerator and denominator
  • Divide the numbers
  •  =  6
5 0
3 years ago
Read 2 more answers
Using six random samples, the average number of catfish in the samples was 5.7. If the total population of fish in the pond is 2
zheka24 [161]
Using the proportion given, there will be 57 catfish in the pond.

The proportion given to us is
5.7/20 = x/200

Cross multiply:
5.7*200 = 20*x
1140 = 20x

Divide both sides by 20:
1140/20 = 20x/20
57 = x
5 0
3 years ago
Read 2 more answers
If a certain cannon is fired from a height of 8.8 meters above the​ ground, at a certain​ angle, the height of the cannonball ab
Dennis_Churaev [7]

Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

h(t)=-4.9t^2+30.5t+8.8

We need to find the time takes for the cannonball to strike the ground.

Substitute h(t) = 0 in above function.

-4.9t^2+30.5t+8.8=0

Multiply both sides by 10.

-49t^2+305t+88=0

For a quadratic equation of the form ax^2+bx+c=0 the solutions are: x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Substitute a = -49, b = 305 and c=88

t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}

Ignore the negative value of t as time can't be a negative number.

Thus,

t=\frac{305+\sqrt{110273}}{98}\approx6.50

Hence, it would take approximately 6.50 second for the cannonball to strike the ground.

6 0
3 years ago
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