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alex41 [277]
3 years ago
6

Please help! I will mark as brainliest IF answer is right. <3

Mathematics
1 answer:
kramer3 years ago
6 0

Step-by-step explanation:

Domain x belongs to [-4 , 0]

Range y belongs to [-4 , 4]

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What is the value of x?<br><br> Enter your answer in the box.<br><br> x = <br><br> I NEED HELP ASAP
melomori [17]

The sum of the angles of a triangle is 180°. So you can do:

91° + (8x + 3)° + (10x - 4)° = 180°   To find x, you need to isolate/get the variable "x" by itself in the equation. First combine like terms (terms that have the same variable and power/exponent]

91 + 3 - 4 + 8x + 10x = 180      (I rearranged for the like terms to be next to each other)

90 + 18x = 180      Subtract 90 on both sides

18x = 90       Divide 18 on both sides to get "x" by itself

x = 5

PROOF

91° + (8x + 3)° + (10x - 4)° = 180°       Plug in 5 for "x"

91° + (8(5) + 3)° + (10(5) - 4)° = 180°

91° + (40 + 3)° + (50 - 4)° = 180°

91° + 43° + 46° = 180°

180° = 180°

8 0
3 years ago
Subtract x^2-6x+4 from 2x^2+4x-8
Rasek [7]
2X^2+4X-8-X^2+6X-4
X^2+4X-8+6X-4
X^2+10X-12
3 0
2 years ago
Please answer, thank you
JulijaS [17]

Answer:

C) 5

Step-by-step explanation:

5 0
3 years ago
contradictions!!!! i dont get them help me with 5 of them pleaseee i will mark you brainlest answer and everything
vodomira [7]
Contradictions usually mean they go against established rules. Squaring a negative number is one example if it is in math. But just think of anything that goes against what is known.  
3 0
3 years ago
WORTH 20 POINTS IF CORRECT! Write the slope-intercept form of the equation of each line show or explain your work. 1. is (0,4) (
Nookie1986 [14]

Answer:

1. y=5/2x+4

2. y=-7x-3

Y=mx+b is slope intercept form

Step-by-step explanation:

You have to add it in the slope intercept formula

2. M=-7   and B=-3

so y=-7x-3

M = 5/2       B = 4

So y = 5/2x+4

4 0
3 years ago
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