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aleksklad [387]
3 years ago
7

5x-1≥-4(x+7) solve... please

Mathematics
2 answers:
amid [387]3 years ago
3 0

Answer: x ≥ - 3

5x - 1 ≥ -4(x + 7)

⇔ 5x - 1 ≥ - 4x -28

⇔ 5x + 4x ≥ - 28 + 1

⇔ 9x ≥ - 27

⇔ x ≥ - 3

Step-by-step explanation:

DENIUS [597]3 years ago
3 0

Answer: x ≥ -3

Hope this helps

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Which graph shows y=x^2+3x-4
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Answer:

Third graph in the photo

Step-by-step explanation:

x^2+3x-4 can be factored as (x+4)(x-1). When y=0, x must be -4 or 1 to satisfy the equations, and thus the roots of the graph are at x=-4 and x=1. When x=0, y=(4)(-1)=-4. The only graph that satisfies both of these requirements is the third/last one.

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3 years ago
Trains headed for destination A arrive at the train station at 15-minute intervals tarting at 7am, where as trains headed for de
grandymaker [24]

Answer: a.) 2/3 ; b.) 7/12

Step-by-step explanation:

Given the following details :

Destination A trains arrives at station at 15 minutes interval starting from 7am

Destination B trains arrives at station at 15 minutes interval starting from 7.05am

A.) if a passenger arrives at station uniformly between 7am and 8am and gets on first train. What proportion of time does the passenger leave from destination A?

To leave for destination A. The passenger has to arrive before train to A departs and after train to B leaves.

Train to B leaves, starting at at 7.05 a.m and at interval of 15 minutes

Train to A leaves at 7.00 am and at interval of 15 minutes.

Therefore,

(Train B departs - train A arrives) (between 7 to 8am)

(7.05 - 7.15) + (7.20 - 7.30) + (7.35 - 7.45) + (7.50 - 8.00) = 40 minutes

Total time = 7.00 - 8.00 = 60 minutes

(40 ÷ 60) = 2/3 or 0.667

B.) If passenger arrives uniformly between 7.10am - 8:10am

(7.10 - 7.15) + (7.20 - 7.30) + (7.35 - 7.45) + (7.50 - 8)

5 + 10 + 10 + 10 = 35

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8 0
3 years ago
Help me out please!!!!
Gwar [14]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
caleb is choosing a bank from the two banks below in an average month he writes 12 checks use his debit card 10 times and uses t
ella [17]

Based on the number of times that Caleb writes checks, uses his debit card, and uses the ATM, his monthly bank fees are $11 and $15.70 at NeoBank and Arbor Bank respectively.

<h3>What are Caleb's bank fees?</h3>

The question is incomplete so I will use a similar question to answer it.

Caleb's fees at Neobank would be:

= (12 checks x 0 per check) + (10 debt card uses x 0 per use) + (6 ATM uses x 1 per use) + 5 Monthly fee

= 0 + 0 + 6 + 5

= $11

Caleb's fees at Arbor Bank:

= (12 checks x 0.10 per check) + (10 debt card uses x 0.25 per use) + (6 ATM uses x 2 per use) + 0 Monthly fee

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Find out more on bank fees at brainly.com/question/25160447.

#SPJ1

6 0
2 years ago
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