It is a 120% increase
Hope this will help you!
Have a nice day!
1)
2x^2 - 13x - 24 = 0;
the discriminant is : ( - 13 )^2 - 4 * 2 * ( -24 ) = 169 + 192 = 361 = 19^2 => we have two different rational-number solutions ;
2)
[ -2( x + 2 ) - 3( x - 5 ) ] / [ ( x - 5 )( x + 2 ) ] < 0 <=>
( -5x + 11 ) / [ ( x - 5 )( x + 2 ) ] < 0
We have 2 situations :
a) - 5x + 11 < 0 and ( x - 5 )( x + 2 ) > 0 => x∈ ( 11 / 5 , + oo ) and x∈( -oo, - 2 )U
( 5 , + oo ) => x∈( 5, +oo);
b) - 5x + 11 > 0 and ( x - 5 )( x + 2 ) < 0 => x∈(-oo, 11/5) and x∈( -2, 5 ) =>
x∈( -2, 11/5 );
Finally, x∈ U (-2, 11 / 5 ) U ( 5, +oo).
Answer:
And we can use the probability mass function and we got:
Then the probability that all three have a smart phone is 0.091
Step-by-step explanation:
Let X the random variable of interest "number of students with smartphone", on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:
And we can use the probability mass function and we got:
Then the probability that all three have a smart phone is 0.091
Answer:
7/12 are left.
Step-by-step explanation:
Convert 1/3 and 1/4 so the have a common denominator. The common denominator is 12 so 1/3 turns into 4/12 and 1/4 turns into 3/12. 3/12 plus 4/12 equals 7/12.
Hope this helps. Hoping for brainliest
To answer this question you will use the
Pythagorean Theorem. a^2+b^2=c^2. In this
case a and b are the same because it is a
square. So 2x^2=1600 (c^2 where c=40).
Solve this equation ( divide both sides by two
and find the square root for both). Each side
length should be approximately 28.3 cm.
