Answer:
221
Step-by-step explanation:
Substitute x = 7 and y = 8 into the expression
5(7)² - 3(8)
= 5(49) - 24
= 245 - 24
= 221
You need more information than that to solve for x and y. However, it is possible for you to graph the equation and see what all the possible values for x and y can be. A possible coordinate can be x=3 and y=3.
Answer:
The angle Rick must kick the ball to score is an angle between the lines BX and BZY which is less than or equal to 32°
Step-by-step explanation:
The given measures of the of the angle formed by the tangent to the given circle at X and the secant passing through the circle at Z and Y are;


The direction Rick must kick the ball to score is therefore, between the lines BX and BXY
The angle between the lines BX and BXY = ∠XBZ = ∠XBY
The goal is an angle between 
Let 'θ' represent the angle Rick must kick the ball to score
Therefore the angle Rick must kick the ball to score is an angle less than or equal to ∠XBZ = ∠XBY
By the Angle Outside the Circle Theorem, we have;
The angle formed outside the circle = (1/2) × The difference of the arcs intercepted by the tangent and the secant

We get;
∠XBZ = (1/2) × (122° - 58°) = 32°
The angle Rick must kick the ball to score, θ = ∠XBZ ≤ 32°
3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3
2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4
same slope, different y int = parallel lines = no solution = inconsistent
Answer:
I think the first 4 are right
5-8
sorry I cant read it it it is too small so I will explain
5.1 x 10^-2 would be 0.051 just move the decimal left x spaces where x is the exponent
9
4.4 x 10^3
10
7.5 x 10^4
11
6.99 x 10^7
12
5.75 x 10^9
13
8.4 x 10^-2
14
9.9 x 10^-3
15
5.15 x 10^-7
16
3.07 x 10^-5
17
you got it right
18
you got it right
19
Singapore
Luxembourg
Australia
Egypt
Brazil
20
3,670,000,000
21
6.2 x 10^-6
22
125,000,000,000
1.25 x 10^11
Step-by-step explanation:
i hope I helped