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Korvikt [17]
3 years ago
5

7 × (–3) × (–2)^2 =

Mathematics
2 answers:
skad [1K]2 years ago
5 0
<span>7 × (–3) × (–2)^2 
= </span>-21 × 4
= - 84

Hope it helps
wel2 years ago
5 0
Hihi!

The correct answer is -84! This is beacause <span><span>(7)x</span><span>(<span>−3</span>)x</span></span><span><span>(<span>−2</span>)^</span>2</span>=−21 (−2) 2= (−21)(4 )=−84!

I hope I helped!
-Loliarual
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The measure of an arc is twice the measure of the inscribed angle that intercepts it.

m(arc)NL = 2 * 42 = 84
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2 years ago
60 POINTS PLEASE SEND ME A COMPLETED COPY OF THIS "linear functions worksheet: child's growth and prosperity
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6 0
3 years ago
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Could you help me to solve the problem below the cost for producing x items is 50x+300 and the revenue for selling x items is 90
s344n2d4d5 [400]

Answer:

Profit function: P(x) = -0.5x^2 + 40x - 300

profit of $50: x = 10 and x = 70

NOT possible to make a profit of $2,500, because maximum profit is $500

Step-by-step explanation:

(Assuming the correct revenue function is 90x−0.5x^2)

The cost function is given by:

C(x) = 50x + 300

And the revenue function is given by:

R(x) = 90x - 0.5x^2

The profit function is given by the revenue minus the cost, so we have:

P(x) = R(x) - C(x)

P(x) = 90x - 0.5x^2 - 50x - 300

P(x) = -0.5x^2 + 40x - 300

To find the points where the profit is $50, we use P(x) = 50 and then find the values of x:

50 = -0.5x^2 + 40x - 300

-0.5x^2 + 40x - 350 = 0

x^2 - 80x + 700 = 0

Using Bhaskara's formula, we have:

\Delta = b^2 - 4ac = (-80)^2 - 4*700 = 3600

x_1 = (-b + \sqrt{\Delta})/2a = (80 + 60)/2 = 70

x_2 = (-b - \sqrt{\Delta})/2a = (80 - 60)/2 = 10

So the values of x that give a profit of $50 are x = 10 and x = 70

To find if it's possible to make a profit of $2,500, we need to find the maximum profit, that is, the maximum of the function P(x).

The maximum value of P(x) is in the vertex. The x-coordinate of the vertex is given by:

x_v = -b/2a = 80/2 = 40

Using this value of x, we can find the maximum profit:

P(40) = -0.5(40)^2 + 40*40 - 300 = $500

The maximum profit is $500, so it is NOT possible to make a profit of $2,500.

3 0
3 years ago
(y= –2x – 5<br> Ty= 2x – 2
Elden [556K]

Answer:

t=2x-2/-2x-5

Step-by-step explanation:

y=-2x-5

ty= 2x-2

add the y value in

t-2x-5=2x-2

combine like terms

t=4x+3

hope this helps :)

4 0
2 years ago
What would the equation be if the sum of t and 2 is equal to 5 less than t
TEA [102]

Answer:

t=\frac{3}{2}

Step-by-step explanation:

1.

t+2=5-t

2.

2t+2=5

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2t=3

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t=\frac{3}{2}

7 0
2 years ago
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