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pashok25 [27]
3 years ago
7

WILL MARK BRAINLIEST JUST PLZ PLZ HELP

Mathematics
1 answer:
olganol [36]3 years ago
7 0

Answer:

is this from a text book

Step-by-step explanation:

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I need help asap please
rjkz [21]

Answer:

x = -\frac{3}{2} or x = 1

Step-by-step explanation:

Using the zero product property, first step is to set the given equation, 2x^2 + x - 1 = 2 , to zero. Then factorise the left side.

Thus,

2x^2 + x - 1 = 2

Subtract 2 from both sides

2x^2 + x - 1 - 2 = 2 - 2

2x^2 + x - 3 = 0

Factorise the left side

2x^2 + 3x - 2x - 3 = 0

x(2x + 3) - 1(2x + 3) = 0

(x - 1)(2x + 3) = 0

Find the solution

x - 1 = 0

Or

2x + 3 = 0

x = 1

Or

2x + 3 = 0

2x = -3

x = -\frac{3}{2}

The answer is: x = 1 or x = -\frac{3}{2}

3 0
3 years ago
PLS HELP I WILL GIVE 15 POINTS OR MORE PLS NO SPAMMING PLS
Blizzard [7]
B,D,F / I’m pretty sure I did this not to long ago
3 0
3 years ago
Read 2 more answers
dillon pays x dollars to get a haircut. he gives the stylist a 15% tip. the expression representing his total cost is x + 0.15x
bagirrra123 [75]

Answer:

B) 1.15x, adding 15% to the cost of haircut is same as to multiply cost by 1.15

Step-by-step explanation:

Given expression = x + 15% of x

x + (15/100) x = x + 0.15x

= (1+ 0.15) x = 1.15x

15% = 0.15 , added to x = 1.15x

4 0
3 years ago
So uh- people didnt do the question properly- i just need help with QUESTION 4
notka56 [123]

Answer:

A and C luv <3

Step-by-step explanation:

3 0
3 years ago
(Picture provided)<br><br> Helppppppp plsss
denpristay [2]

Answer:

100 degrees

Step-by-step explanation:

at first i thought it was a right angle but i looked at the other shape and seen it was a 80 degree angle for B, then i seen C on the same shape, so that just proved what i thought that W was on the other shape because its not a 90 degree right angle, its a bigger angle not as big as C on the other shape, but not a 90 degree angle either, so its 100 degree angle.

3 0
2 years ago
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