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Vaselesa [24]
3 years ago
11

What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39.0 with th

e horizontal
Mathematics
1 answer:
JulijaS [17]3 years ago
8 0
It's a ball, so we don't have to worry about friction.  Wouldn't it just be 22.6sin(39) = 14.22 pounds of force?  Conceptually, at an angle 0 (flat), we would need 22.6sin(0) = 0 pounds of force, and at angle 90 (vertical), we would need 22.6sin(90) = 22.6 pounds (all of it).  So it should be 14.22 pounds.  And since this is a mathematical question, rather than physics, I'm assuming you don't need to convert to newtons or anything.
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How to expand 3(2t+1)
Vlada [557]
Hey there :)

3 ( 2t + 1 )
We use what is called the distributive property to get rid of the parenthesis

We multiply the term outside the parenthesis by all terms inside
3 ( 2t ) + 3 ( 1 )

6t + 3 → Your answer
8 0
4 years ago
Which property of multiplication is shown 2 questions
8_murik_8 [283]
The property that is shown is called the zero property.
7 0
3 years ago
Elijah invested $79,000 in an account paying an interest rate of 2% compounded
shusha [124]

Answer: He would have 16590 but if we want to know in total

it would be, 11060 (just from the percent) if you want to know in total add 16590 and 79,000 which would be (95,590 for Landon) and (Elijah would be 90060) in total

Step-by-step explanation:So in total Landon would have:

Landon-(95,590)

Elijah-(90,060)

So Landon would have 5,530 more dollars in 7 years than Elijah.

6 0
3 years ago
What should be done so that the expression will have a value of 10?<br><br> 12 - 2 + 2 2 ÷ 8
Liula [17]
Answer: 10
use (PEMDAS)
P parentheses ()
E exponents
M multiplication • , () , x
D division
A addition +
S subtraction -
Explanation:
There are no parentheses.
There are exponents.
The multiplication is the exponents.
There is division.
There is addition and subtraction.
-how to solve-
First, do 2 to the second power and get 4.
Next, do 12-2+4 divided by 8.
Next do multiplication: there’s no more.
Next do division: you can’t do 4 divided by 8 so instead, do 12-2 = 10 plus 8.
Hope this helps!
3 0
2 years ago
Product property:
liberstina [14]

Answer:

log 12 = 1.0791

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the logarithmic function is log12

We will apply the formula

log by = log b + log y

log xⁿ = n log x

<u><em>Step(ii):-</em></u>

log 12 = log 4 × 3

         = log 4 + log 3

         = log 2² + log 3

       = 2 log 2 + log 3                 (∵ log xⁿ = n log x)

      = 2× 0.3010 + 0.4771

     =  1.0791

8 0
3 years ago
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