A prime number is a number that can only be divided by one and the number itself. The sum of the numbers is an even number so it must be that the two numbers are odd numbers and the other would be even. One prime number that is the number two. This will be one number. So, 18-2 = 16. We choose three as one of the odd prime number. So, 16-3 = 13 which results to an odd prime number. Thus, the numbers are 2, 3 and 13.
The equation ,
represents a conic. The discriminant is is -31 , so the represents an ellipse .
<h3>What is Conic ?</h3>
A curve obtained by a cone and a plane is called conic .
Here given equation is
we know that discriminants of equation
is 
and if
D<0 it's ellipse
D=0 it's parabola
D>0 It's hyperbola
Here, the is
Hence it's an ellipse
The equation , represents a conic. The discriminant is is -31 , so the represents an ellipse .
To know more about conic visit :brainly.com/question/3456995
Zach has invested a total of 100,000
<h3>What is a ratio?</h3>
The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
the ratio 1 : 2 : 0.5 can be written in whole number ratios
by multiplying the ratio by 2 so that it becomes
2:4:1
Total shares = 2 + 4 + 1 = 7
Zach's share = 2/7 x 350,000
Zach's share = 2 x 50,000, which is 100,000
In conclusion, Zach's share of the total money invested is 100,000
Learn more about ratio: brainly.com/question/2328454
#SPJ1
Answer:
d=11
Step-by-step explanation:
2d -5 =17
Add 15 to each side
2d-5+5 =17+5
2d =22
Divide each side by 2
2d/2 =22/2
d =11
