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Tpy6a [65]
3 years ago
7

I need answers for number 20 I need This done by Tuesday

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0

One ticket costs $24.50 - $19 more for evening

Six tickets cost 6 (  $24.50 - $19 ) more

Answer: 6 (  $24.50 - $19 )

Problem 18 is D by the way

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Give all solutions if the nonlinear system of equations, including those with no real complex components.
konstantin123 [22]
\left\{\begin{array}{ccc}y=x^2+6x\\4x-y=-24\end{array}\right\\\\substitute:\\\\4x-(x^2+6x)=-24\\\\4x-x^2-6x+24=0\\\\-x^2-2x+24=0\\\\a=-1;\ b=-2;\ c=24\\\\\Delta=b^2-4ac

\Delta=(-2)^2-4\cdot(-1)\cdot24=4+96=100\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{100}=10\\\\x_1=\frac{2-10}{2\cdot(-1)}=\frac{-8}{-2}=4;\ x_2=\frac{2+10}{2\cdot(-1)}=\frac{12}{-2}=-6\\\\y_1=4^2+6\cdot4=16+24=40;\ y_2=(-6)^2+6\cdot(-6)=36-36=0\\\\Answer:\\x=4\ and\ y=40\ or\ x=-6\ and\ y=0
4 0
3 years ago
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I need help with this
HACTEHA [7]

Answer:

1. measure of angle E is 90 degrees

2. Measure of angle F + measure of angle G is 90 degrees

Step-by-step explanation:

Angle E is 90 degrees because it is marked as a right angle (the square)

A triangle has 180 degrees so if E is 90 degrees then the other 2 also have to equal 90 degrees

8 0
2 years ago
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One characteristic of all linear functions is that they will change by
ElenaW [278]
The same constant value(s)
3 0
3 years ago
Guy is pouring a new patio for his house.
Mamont248 [21]

Answer:

Step-by-step explanation:

50 + 12.50h = 143.75....where h = # of hrs

12.50h = 143.75 - 50

12.50h = 93.75

h = 93.75 / 12.50

h = 7.5 (or 7 1/2) hrs <====

3 0
3 years ago
Y=4x+7 what are the intercepts of the line
VikaD [51]
To find the intercepts you sub the opposite value for 0 
To find y: 
<span>Y=4(0)+7
0*4=0+7=7
y=7

To find x: 
0=4x+7
Subtract 7 from both sides
-7=4x
divide both sides by 4

x=-7/4  

Final answer: 
x-intercept: (-7/4,0) 
y-intercept: (0,7) </span>
4 0
3 years ago
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