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3 years ago

Find the product -8x5y2.6x2y

Mathematics

2 answers:

Helga [31]3 years ago

6 0

Answer:

It's B on Edgenuity

Step-by-step explanation:

I just took the test

UNO [17]3 years ago

3 0

Answer:

Answer is given below with explanations

Step-by-step explanation:

$- 8x.5 {y}^{2} .6{x}^{2} 2y = - 48 {x}^{3} .10 {y}^{3}$

HAVE A NICE DAY 

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

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Please explain your answer and I'll mark the Brainliest! Which complex number is the graph showing?

zheka24 [161]

Answer:

A 2√2(cos 7π/4 + i sin 7π/4)

Step-by-step explanation:

A. 2√2(cos 7π/4 + i sin 7π/4)

2 sqrt(2) ( sqrt(2)/2 - sqrt(2)/2 i)

Distribute

2-2i

This is in the fourth quadrant

B. 2√2(cos 150° + i sin 150°)

2 sqrt(2) (-sqrt(3)/2 +1/2i)

-sqrt(6) +sqrt(2) i

This is in the third quadrant (NO)

C. 2(cos 7π/4 + i sin 7π/4)

2( ( sqrt(2)/2 - sqrt(2)/2 i))

sqrt(2) - sqrt(2) i

This is the fourth quadrant

D. 2(cos 90° + i sin 90°)

2(0+i)

This is on the positive y axis NO

Now we need to decide between the two in the fourth quadrant.

The point has an x coordinate of 2 and a y coordinate of -2

This aligns with point A

8 0

3 years ago

Paul is comparing two high-speed Internet service providers (ISPs) for his business. The graph represents the cost of each ISP a

Amiraneli [1.4K]

Answer:

12 months

Step-by-step explanation:

Theres an awful amount of needless information to get through.

Only the last paragrph is needed.

C(t) = 180 + 10t

C(t) = 25t

Set the equations equal

25t = 180 + 10t

Subtract 10t from both sides

15t = 180

Divide both sides by 15

t = 12

7 0

3 years ago

Help help help help help help help help

Leya [2.2K]

Answer:

first off, take pic right side up next time. secondly, it's the forth one down

Step-by-step explanation:

8 0

3 years ago

Help me please. I dont understand this question.

ziro4ka [17]

Answer:

y = 100°

Step-by-step explanation:

I can't see the full question, but I'm guessing you need to find the measure of angle y.

The total angle sum of a polygon can be calculated with the formula

T = 180°(n - 2) where T is the total angle measure, and n i the number of sides.

For our shape, there are 4 sides, so n = 4. Plug that in and simplify...

T = 180°(4 - 2)

T = 180°(2)

T = 360°

We are given 3 of the angles, so angle y is

y = 360 - 107 - 104 - 49

y = 100°

5 0

3 years ago

g (15 points) Suppose 42 out of 600 rats exposed to a potential carcinogen develop tumors. A control group of 350 rats not expos

vazorg [7]

Answer:

a) The relative risk is 1.8 $\overline{846153}$

b) The attributable risk is $0.69 \overline{047619}$

c) There is a relationship between exposure and tumor risk

Step-by-step explanation:

The number of exposed rats that develop tumors, a = 42

The number of rats exposed to the carcinogen = 600 rats

The number of exposed rats that did not develop tumors, b = 600 - 42 = 558

The number of not exposed rats in the control group = 350 rats

The number of rats that develop tumors in the control group, c = 13 tumors

The number of not exposed rats that did not develop tumors, d = 350 - 13 = 337 rats

a) The relative risk, RR = a/(a + b)/(c/(c + d))

∴ RR = (42/(42 + 558))/(13/(13 + 337)) = 49/26 = 1.8 $\overline{846153}$

b) The attributable risk = (a - c)/a

∴ The attributable risk = (42 - 13)/42 = $0.69 \overline{047619}$

c) The odds ratio = (a·b)/(c·d)

∴ The odds ratio = 42 × 558/(13 × 337) = 23439/4381 ≈ 5.35

Given that the result of attributable risk is positive, there is an indication that there is a higher probability to develop tumor when exposed to the potential carcinogen, therefore, there is a relationship between exposure and tumor risk

7 0

3 years ago