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Scorpion4ik [409]
3 years ago
9

Can somebody give me some problems involving residuals?

Mathematics
1 answer:
pav-90 [236]3 years ago
4 0
Possible answers include what is above

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Show all work to multiply (6+square root -64)(3-square root -16)
Hunter-Best [27]

Answer:

50

Step-by-step explanation:

- 8i = √-64

8i + 6

- -4i = -√-16

-4i + 3

[8i + 6][-4i + 3] → FOIL

>> -32i² + [24i - 24i] + 18

↑ ↑

-1 0

>>> 32 + 18 = 50

Information on Imaginary Numbers

√-1 = i

-1 = i²

-i = i³

1 = i⁴ [And every other exponent that is a multiple of 4; this cycle then repeats itself every time you go up one number at a time]

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

7 0
3 years ago
Read 2 more answers
Micheal paid for 2.5 pounds of plums with a ten-dollar bill. He received 1.20 in change from the cashier.What was the price,per
Oxana [17]

Answe

Step-by-step explanation:

8 0
3 years ago
A parallelogram is a _____. (Choose all that apply)
Mama L [17]

Answer:

Quadrilateral

Step-by-step explanation:

The definition of a parallelogram is a quadrilateral that has two sets of parallel sides.

3 0
2 years ago
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How is arc length calculated? What measurement needs to be used for the angle for the arc length formula? Provide an example.
eimsori [14]

Answer:

i honestly don't know

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the total cost of producing 6 widgets
pentagon [3]

<span><span>the basic formula is
</span><span> c(x) = ax² + bx + c,
where x is the number of widgets produced, and c(x) is cost to produce x number of widgets.
first we need to calculate a, b, and c from the quadratic formula using the system of 3 equations.

So, the equations are:
1. c(2) = 16= a(2)² + b(2) + c = 4a + 2b + c   </span></span><span>= </span><span><span>4a + 2b + c = 16
</span> 2. c(4) = 18= a(4)² + b(4) + c = 16a + 4b + c   </span><span>= </span><span><span>16a + 4b + c = 18
</span> 3. c(10) = 48= a(10)² + b(10) + c = 100a + 10b + c   </span><span>= </span><span><span>100a + 10b + c = 48
</span><span>
subtract equation 1 from equation 2:
16a + 4b + c - 4a - 2b - c = 18 - 16  </span></span>=<span><span> 12a + 2b = 2
</span><span> subtract equation 1 from equation 3:
100a + 10b + c - 4a - 2b - c = 48 - 16 </span></span>=<span><span> 96a + 8b = 32
</span><span>
We have two equations now, multiply the first by 4 ( to equal out b):
12a + 2b = 2      = 48a +8b =8

now subtract these equations:
96a + 8b - 48a - 8b = 32 - 8
48a = 24 </span></span><span>   </span>

<span><span>a = 24/48 = 1/2
</span><span>
If we know a, we can calculate b from the equation:
12a + 2b = 2 
2b = 2 - 12a = 2 - 12 * 1/2 = 2 - 6 = -4
b = -4 ÷ 2 = -2

We have a and b. Let's calculate c:
4a + 2b + c = 16
c = 16 - 4a - 2b = 16 - 4 * 1/2 - 2 * (-2) = 16 - 2 + 4 = 18


so a = ½ , b = -2, c = 18

now calculate c(6)
 <span> c(6) = 1/2(6)² - 2(6) + 18 = 1/2 * 36 - 12 + 18 = 18 - 12 + 18 = 24</span></span></span>

<span><span><span>
</span></span></span>

<span><span><span> it costs $24 to produce 6 widgets</span></span></span>


6 0
3 years ago
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