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horsena [70]
3 years ago
15

Helpp me pleaseeeee will give brain

Mathematics
1 answer:
Damm [24]3 years ago
3 0

Answer:

63+22i

Step-by-step explanation:

(8-3i) (6+5i)

first: 8*6 = 48

outer: 8*5i = 40i

inner: -3i*6 = -18i

Last: -15i^2 = -15(-1) = 15

Add them together = 48+40i-18i+15

                                = 63+22i

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The number of cable TV systems recently decreased from 16,300 to 16,020. Find the percent decrease.
irga5000 [103]
Percent decrease = (change in value) / (original value)

change in value = 9965-10100 =-135

We will just use 135 because the negative just that the value decreased

original value = 10100

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This is a decrease of 1.34%
8 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP! What are the solutions to the system of equations?
musickatia [10]
Y=2x

so what you do is sub 2x for y in the top equation

x^2+(2x)^2=5
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8 0
3 years ago
What is 22,119 rounded to the nearest hundred
Varvara68 [4.7K]
The answer is 22,100.
3 0
3 years ago
(9⋅10
cestrela7 [59]

Answer:

  A. -18·10^6

Step-by-step explanation:

The rules of exponents apply to powers of 10 used in scientific notation. The associative and commutative properties of multiplication also apply.

<h3>Application</h3>

  (a^b)(a^c) = a^(b+c)

The numerical product is ...

  (9\cdot10^9)\cdot(-2\cdot10^{-3})=(9)(-2)(10^{9-3})=\boxed{-18\cdot10^6}

__

<em>Additional comment</em>

Expressed in scientific notation, the result would be ...

  -1.8\cdot10^7

Your calculator can perform this multiplication for you.

8 0
1 year ago
Some researchers have conjectured that stem-pitting disease in peach-tree seedlings might be controlled with weed and soil treat
babymother [125]

Answer:

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The hypothesis test is used to test the null hypothesis against the alternative hypothesis. The p value of the test determines whether to accept or reject the null hypothesis. In the given scenario the p value is less than 0.05 so there is sufficient evidence against the null hypothesis in favor of alternative hypothesis.

5 0
3 years ago
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