A)

is false. There is no solution.
B)

is false. There is no solution.
C)

is
true. It has infinite solutions.
D)

is
true. It has infinite solutions.
E)

is false. There is no solution.
Answer:
The two numbers are -164 and -287
They could also be 164 and 287
Step-by-step explanation:
The ratio of 2 numbers 4/7
x/y = 4/7
Using cross products
7x =4y
Their difference is 123
x-y = 123
x = 123+y
Substituting in
7(123+y) =4y
Distribute
861 +7y = 4y
Subtract 7y from each side
861 +7y-7y = 4y-7y
861 = -3y
Divide each side by -3
861/-3 = -3y/-3
-287 = y
Now we need to find x
x = 123+y
x = 123+ -287
x = -164
The numbers could also be 164 and 287
The difference is 287-164 = 123
And the ratio is 164/287 = 4/7
since the polygon has 8 chambers the angle of one chamber = 360/8 = 45°
so the angle WOP = 45°
now drawing a imaginary line which seperates the triangleWOP into half
so the angle of imaginary line is 45/2 = 22.5
sin(theta) = opp/hyp
since WP (opp) is unknown. take as x
sin(22.5) = x/44
0.383×4 = x
x = 1.532 (app) = 1.5 cm
perimeter = 1.5 × 8
= 12 cm
area of triangle WOP = 2×1/2 ×bh = bh
= 4×1.5
= 6 cm²
so the area of regular polygon = 8× area of a triangle
= 48 cm²
Answer: First Option
The slope is −0.4. Starting at 3.8, the GPA will decrease by 0.4 for every text sent in class.
Step-by-step explanation:
The equation of a line has the following form

Where m is the slope of the line and b is the intercept with the axis of the y
In this case, the equation is:

Observe that

So if x represents the number of texts sent during classes, this means that 
When x increases by one unit then y decreases -0.4. For example when
then 
Then the greatest value it can take the GPA is 3.8. Therefore we can say that the function starts at y = 3.8.
The answer is the first option
Answer:
19
Step-by-step explanation:
10[4 times 10 divided by (6^2-4^2) +1]
First you would multiply 6 x 6 = 36
10[4 times 10 divided by (36-4^2) +1]
Second you would multiply 4 x 4 = 16
10[4 times 10 divided by (36-16) +1]
Third you would subtract 36 - 16 = 20
10[4 times 10 divided by 20 +1]
Fourth you would add 20 + 1 = 21
10[4 times 10 divided by 21]
Fifth you would multiply 4 x 10 = 40
10[40 divided by 21]
Sixth you would divide 40 divided by 21 = 1.90
10[1.90]
Seventh you would multiply 10 x 1.90 = 19
Your answer would be 19.
Hope this helps. I am sorry if you get this wrong.