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MA_775_DIABLO [31]
2 years ago
8

Show all work to multiply​

Mathematics
1 answer:
max2010maxim [7]2 years ago
7 0

Answer:

58

Step-by-step explanation:

(2)(4) + (2)(-√-100) + (√-25)(4) + (√-25)(-√-100)

= 8 - 20i + 20i + 50 = 58

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Sketch a graph of the polynomial function f(x) = –x3 + 5x2 – 2x – 8. Use the graph to complete the following:
Darya [45]

Answer:

decreasing

Step-by-step explanation:

If you put the function in desmos, everything up until -1 is decresaing still.

7 0
2 years ago
What additional information is needed to prove that
erik [133]
The answer is <a is congruent to < d

because you already have <abe = <dbe 
5 0
3 years ago
Carlos and Mike work part time as salespeople for an electronics store. Carlos earns $7.25 per hour plus a $10 bonus. Mike earns
galina1969 [7]

Carlos and Mike earn same amount for 10 hours of part time work

<em><u>Solution:</u></em>

Let "x" be the number of hours worked by Carlos and mike

Given that,

<em><u>Carlos earns $7.25 per hour plus a $10 bonus</u></em>

Thus, total amount earned by Carlos for "x" hours is given by:

total earned = 7.25(number of hours) + $ 10

total earned = 7.25x + 10 ----- eqn 1

<em><u>Mike earns $7.75 per hour plus a $5 bonus</u></em>

Thus, total amount earned by Mike for "x" hours is given by:

total earned = 7.75(number of hours) + $ 5

total earned = 7.75x + 5 ------- eqn 2

To find number of hours, they earn same amount, equate eqn 1 and eqn 2

7.25x + 10 = 7.75x + 5

7.75x - 7.25x = 10 - 5

0.5x = 5

x = 10

Thus for 10 hours, they earn the same amount

3 0
3 years ago
Mark up is 40% and the cost to store is 162 dollars what is the selling price
Vanyuwa [196]

Answer:

$64.8

Step-by-step explanation:

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6 0
3 years ago
HELP ASAP
Natalija [7]

Answer:

The equation of the function: y = mx + b

  • m = slope = (y₂ - y₁)/(x₂ - x₁) = [5 - (-3)]/(4 - 0) = (5 + 3)/4 = 8/4 = 2
  • b = y-intercept = -3

Therefore, the equation is <u>f(x) = 2x - 3</u>

When x = 0, f(x) = 2(0) - 3 = <u>-3</u>

When x increases by 1, f(x) increases by <u>2</u> (slope = the rate of change)

5 0
2 years ago
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