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Andrews [41]
3 years ago
13

Someone knows it, I take help

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

5a^2 + 7a

Step-by-step explanation:

Combine like terms

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15 POINTS AND WILL MARK BRAINLIEST Help?? Pleasee
Rom4ik [11]

The <em>experimental probability</em> is calculated based on the results of the experiment; since the name Ted was chosen 26 times out of 123, the experimental probability is \boxed{\frac{26}{123}}.

Typically, the <em>theoretical probability </em>assumes that events are chosen randomly; since the name Ted is one of the 6 in the hat, the theoretical probability is \boxed{\frac{1}{6}}.

If we <em>increased</em> the number of names in the hat, we would expect both the experimental and theoretical probability to decrease, since there are now more names to choose from. Similarly, if we <em>decreased</em> the number of names in the hat, the experimental and theoretical probability would increase.

6 0
3 years ago
3D shape practice. I'm stuck in this problem. Pleas help.
timofeeve [1]
1)we calculate the volume of the right rectangular prism
volume=lenght x width x heigth
volume=12 ft * 8.5 ft * 4 ft=408 ft³

density= mass / volume  ⇒ mass=volume * density.
density=0.25 pound /ft³

2) we calculate the mass of the right rectangular prism.
mass=volume * density
mass=408 ft³(0.25 pound / ft³)=102 pounds.

answer: c.  102

 
5 0
3 years ago
What is an equation of the line that passes through the points (0,2) and (5,8)
motikmotik

Answer: y=\frac{6}{5}+2

Step-by-step explanation:

<em>This is y intercept form</em>

First you find the slope

Then you find the y intercept and plug it in t the equation y=mx+b

5 0
3 years ago
A square dance floor has a perimeter of 120 yards. What is the length of a diagonal of the dance floor?
Crazy boy [7]

Answer:

Hey!

Your answer is C.42.4yd

Step-by-step explanation:

There are 2 ways you can work this on out...

1. Using Pythagoras Theorem...

= 30^2 + 30^2 = 1,800 (30^2=900 so you've added 2 of those to make 1,800)

= SQUARE ROOT THE ANSWER OF 1,800

\sqrt{x} 1,800= 42.42640687119285‬

TO GET A MORE PRECISE ANSWER WE ROUND IT UP TO 1 decimal place

= 42.4 yd is the diagonal length of the dance floor!!

HOPE THIS HELPS!!

6 0
3 years ago
Select all equations that have infinitely many solutions.
ella [17]

Answer:

C

Step-by-step explanation:

Test Numbers with each equation or Simplify

Simplified, C's equation equates to 0 which would make it infinite

8 0
2 years ago
Read 2 more answers
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