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seropon [69]
3 years ago
6

Solve for x. Give the solutions in ascending order. x^2+3x-4=0 x= or x=

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0
To solve this equation simply find 2 numbers that multiply to give -4 and add also to give 3, these numbers are 4 and -1. Since 4 • -1 = -4 and 4 + -1 = 3.

X^2 + 3x - 4 = 0
(X - 1)(X + 4) = 0
X = -4 and X = 1 in ascending order.
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Maisha has 3(x+2) hours reading a book 8x-5 hours sleeping and 2x hours playing.How many hours did she spend in all of these act
Mandarinka [93]
Add all the activities together

=3(x+2) + (8x-5) + 2x
multiply 3 by all in parentheses
=(3*x) + (3*2) + (8x-5) + 2x
=3x + 6 + 8x - 5 + 2x
combine like terms
=(3x + 8x + 2x) + (6 - 5)
=13x + 1

ANSWER: 13x + 1

Hope this helps! :)
6 0
3 years ago
Choose the inequality that represents the following graph.
Dmitry [639]

Answer:

A i think

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Which inequality best represents the situation? A contractor charges a flat rate of $150 plus $6 per square foot to install conc
Studentka2010 [4]
The answer would be D) 150 + 6x  ≤ 2500.
8 0
3 years ago
Trey had 440 songs on his mp3 player.now he has 473 songs.what is the percent of increase in the number of songs on his mp3 play
olga55 [171]

Answer:

There is 7.5% increase in the number of songs on his mp3 player.

Step-by-step explanation:

Original Songs in mp3= 440 songs

Final Songs in mp3= 473 songs

We need to find percent of increase in the number of songs on his mp3 player.

The formula used is: Percent \ of \ increase = \frac{Final \ Value \ -\ Original \ Value}{Original \ Value} \times 100

Now putting values and finding percent of increase

Percent \ of \ increase = \frac{Final \ Value \ -\ Original \ Value}{Original \ Value} \times 100\\Percent \ of \ increase = \frac{473-440}{440} \times 100\\Percent \ of \ increase = 7.5\%

So, there is 7.5% increase in the number of songs on his mp3 player.

7 0
3 years ago
Phil Fresno worked 51.5 hours.
N76 [4]
So he makes 10.40 per hr for regular work, and time and a half for anything over 40 hrs.......and he worked 51.5 hrs

10.40 (40) = 416 for his regular hrs
51.5 - 40 = 11.5 hrs overtime......1.5(10.40) * 11.5 = 15.60(11.5) =
179.40 for his overtime hrs
for a total gross pay of : 416 + 179.40 = 595.40 <==

because he worked 40 hrs at 10.40 per hr...giving him $ 416...and he worked 11.5 hrs overtime at a rate of 15.60 per hr...giving him 179.40...for a total of $ 595.40 total gross pay
8 0
4 years ago
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