12 times 2 is 24, and 24 times 2 is 48, so there was 48 cookies
Answer:
A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, ∑ , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as 6∑n=14n . The expression is read as the sum of 4n as n goes from 1 to 6 .
Step-by-step explanation:
I hope it's help u
Answer:
(x+2) + x + (x+4) = 2(1/2) + 2(x+3)
Step-by-step explanation:
They are equal to each other and the rectangle has 2x more perimeter
The triangle would be divided in half from that rectangle.
Sorry If this is confusing I am not very good at explaining things.
<em>Answer:</em>
<em>The right side of the equation is only a different way of writing the left side, so any value of x will solve this equation.
</em>
<em>
</em>
<em>The equation −
2
( x + 3 ) = −
2
x − 6 does not have any specific solutions for the simple reason that the left and rigth sides are two representations of the same equation.
</em>
<em>
We have −
2
( x + 3 ) means that each term inside the parenthesis should be multiplied with −
2
, i.e.</em>
<em>
−
2
( x + 3
) = −
2 ⋅ x − 2 ⋅ ( + 3
) = −
2
x − 6
</em>
<em>
</em>
<em>Which is exactly what the right side says.
</em>
<em>
</em>
<em>Any value of x will, therefore, fulfill this equation.</em>
Answer:
D: Mittens
Step-by-step explanation:
We are given;
Population mean;
- Abyssinian: μ = 12
- Colorpoint shorthair: μ = 14
Population standard deviation;
- Abyssinian: σ = 1.5
- Colorpoint shorthair: σ = 1
Sample mean;
-Fluffy the Abyssinian: x¯ = 13
-Mittens the colorpoint shorthair; x¯ = 15
To find which cat had a longer lifespan, we need to find the z-score for both breeds and the one with the higher z-score is the one with longer lifespan.
Z-score formula is;
z = (x¯ - μ)/σ
For Fluffy the Abyssinian;
z = (13 - 12)/1.5
z = 0.667
For Mittens the colorpoint shorthair;
z = (15 - 14)/1
z = 1
Z-score of Mittens is higher and thus it has a longer lifespan.
