MATHEMATICS MIDDLE SCHOOL

Lara tossed a fair coin 3 times. What is the probability of getting heads in the first two trials?1 over 8

2 over 8

3 over 8

4 over 8

Answers

Answer 1
Answer: 2 over 8 is the correct answer
Answer 2
Answer: I believe that it would be 4 over 8, if you consider the fact that it asks about the first two times (not all 3) meaning that there would be a 50% chance of flipping either a heads or tails.

I hope this helps you.

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In a football tournament, the Bees scored 9 less than three times as many points as the Hornets. The Wasps scored 28 more points than the Hornets. Together the three teams scored 184 points. Let x represent the number of points scored by the Hornets

Answers

x = 33 Because with the equation (3x-9)+x+(x+28) you just solve for x by subtracting twenty eight and adding 9 to both sides then you get 5x=165 then divide by 5 on both sides and you get x = 33. Hope this helps.

  x=90 on e2020........................................................................

Ten decreased by twice a number is the same as -28

Answers

Answer:

The answer is 10-(9*2)=-28

Step-by-step explanation: Ten subtracted from 28 is 18, then you would divide that by two to get 9. Hope this helps!!

Which expression is not equivalent to the others? explain a.-16x+5(2x+8)-14b.26-2(3x)
c.6x-28x+10(x+4)-14
d.-6x+26

Answers

Calculate them all.
a)16x+5(2x+8)-14=16x+10x+40-14=26+26x
b)26-2(3x)=26-6x
c)6x-28+10(x+4)-14=6x-28+10x+40-14=16x-2
d)26-6x
There are two equivalent ones, which give no real majority...

Answer

d.

Step-by-step explanation:

because its not equivalent

What is the area of a triangle whose side is 17 meters long​

Answers

Answer:

125.141

Step-by-step explanation:

Assuming that this is an equilateral triangle, I am going to divide this triangle in half to get a right triangle.

17 is our hypotenuse

17/2 = 8.5, this is one of our legs

The other leg is our height, which we will find.

We use Pythagoras Theorem to find the height/leg: a^(2) +b^(2) =c^(2)

17^(2) -8.5^(2) = 216.75

√(216.75) = 14.72243186

Now, we use another formula to find the area of the triangle: (Base*Height)/(2)

14.72243186 × 17 = 250.2813416

250.2813416 ÷ 2 = 125.1406708

If an angle is acute, an angle supplementary to it is (always,sometimes, or never) acute

Answers

suplementary is adding up to 180
acute means less than 90
so angle less than 90+something=180
is this something always, sometimes never acute
so
less than 90+less than 90=less than 180

so never
Never, because it would have to be over 90° to be supplementary

What is the solution to the system of equations? 5x+4y=8 x-2y=10

Answers

\left \{ {{5x+4y=8} \atop {x-2y=10\ |\cdot2}} \right. \n\n \left \{ {{5x+4y=8} \atop {2x-4y=20}} \right. \n+-----\n\n7x=28\ \ \ \ |:7\nx=4\n\n4-2y=10\n-2y=10-4\n-2y=6\ \ \ \ \ |:-2\ny=-3\n\n \left \{ {{y=3} \atop {x=4}} \right.
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