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aivan3 [116]
3 years ago
6

Inequality 5+m>4 or 7m<-35

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0
5+m > 4\ or\ 7m < -35\\\\\#1\\5+m > 4\ \ \ \ |subtract\ 5\ from\ both\ sides\\\\m > -1\\\\\#2\\7m < -35\ \ \ \ \ |divide\ both\ sides\ by\ 7\\\\m < -5\\\\Answer:m\in(-\infty;-5)\ \cup\ (-1;\ \infty)
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-6x - 7 is greater than or equal to - 19. Please guide me through the steps of this... I will give brainliest
3241004551 [841]

Answer:

x ≤ 2

Step-by-step explanation:

                                       -6x - 7 ≥ -19

Add 7 to both sides:            -6x ≥ -12

Divide both sides by 6:          -x ≥ -2

Divide both sides by -1:            x ≤ 2

When you divide by a negative, you have to switch the sign around (hence why I chose to do this in separate steps, so it's clearer)

7 0
2 years ago
Max makes and sells posters. The function p(x)= -10x^2 +200x -250, graphed below, indicates how much profit he makes in a month
viktelen [127]
Here is our profit as a function of # of posters
p(x) =-10x² + 200x - 250
Here is our price per poster, as a function of the # of posters:
pr(x) = 20 - x
Since we want to find the optimum price and # of posters, let's plug our price function into our profit function, to find the optimum x, and then use that to find the optimum price:
p(x) = -10 (20-x)² + 200 (20 - x) - 250
p(x) = -10 (400 -40x + x²) + 4000 - 200x - 250
Take a look at our profit function. It is a normal trinomial square, with a negative sign on the squared term. This means the curve is a downward facing parabola, so our profit maximum will be the top of the curve.
By taking the derivative, we can find where p'(x) = 0 (where the slope of p(x) equals 0), to see where the top of profit function is.
p(x) = -4000 +400x -10x² + 4000 -200x -250
p'(x) = 400 - 20x -200
0 = 200 - 20x
20x = 200
x = 10                         
p'(x) = 0 at x=10. This is the peak of our profit function. To find the price per poster, plug x=10 into our price function:
price = 20 - x
price = 10
Now plug x=10 into our original profit function in order to find our maximum profit:
<span>p(x)= -10x^2 +200x -250
p(x) = -10 (10)</span>² +200 (10) - 250
<span>p(x) = -1000 + 2000 - 250
p(x) = 750

Correct answer is C)
</span>
7 0
3 years ago
Philip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his 8 employees. How much does ea
Eddi Din [679]
$2,000 - $23,75 = $1,976.25 / 8 = $<span>247.03 each</span>
5 0
3 years ago
Read 2 more answers
Hey y’all pls help me , what’s the answer :))
klio [65]
4th one. its simple math bro
7 0
2 years ago
Read 2 more answers
HELP!!! giving brainliest
Stolb23 [73]

4cm = 5km

5/4 = 1.25

1cm = 1.25km

5 × 1.25 = 6.25

<em>6.25km</em>

Hope this helps! :)

3 0
3 years ago
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