Answer:
{x,y} = {-2,2}
Step-by-step explanation:
Solve equation [2] for the variable y
7y = 7x + 28
y = x + 4
Plug this in for variable y in equation [1]
-8x + 4•(x +4) = 24
-4x = 8
Solve equation [1] for the variable x
4x = - 8
x = - 2
By now we know this much :
x = -2
y = x+4
Use the x value to solve for y
y = (-2)+4 = 2
Solution :
{x,y} = {-2,2}
and this intersects at only one point so your answer is A
Answer:
C
Step-by-step explanation:
It can't be A because there isn't an answer for 55
It can't be B because 8 students answered 70 or 75 % and there are 19 total students. 8/19 is not 50%
It can't be D because only one student answered 100%
And there are eight students who answered more than 80%
I think this is correct, the picture is a little blurry.
Mass. It and velocity affects kinetic energy.
Answer:
(4) Bonnie’s bag is within the middle 95% of the simulated data supporting the company’s claim.
Step-by-step explanation:
We are being told that:
The J & B candy company claims that 45% of the candies it produces are blue, 30% are brown, and 25% are yellow.Each bag holds 65 candies.
From the simulation that was run 200 times
Given that:
The mean is 29.270 and the standard deviation is 3.936. from the diagram attached.
The mean - 2 SD = 29.270 - 2(3.936)
= 29.270 - 7.872
= 21.398,
This is less than 24, Hence, Bonnie’s bag is within the middle 95% of the simulated data supporting the company’s claim.
Answer:
A) N + Q = 130
B) .05N + .25Q = 15.90
Multiplying equation A by -.05 equals
A) -.05N -.05Q = -6.50 then adding this to B)
B) .05N + .25Q = 15.90 Equals
.20Q = 9.40
Quarters = 47
Nickels = 83
.05*83 + .25*47 = 4.15 + 11.75 = 15.90
Step-by-step explanation:
