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3 years ago

Which simplifications of the powers of i are correct? There is more than one correct answer.

Mathematics

1 answer:

IrinaVladis [17]3 years ago

6 0

The first four equations are correct. The remaining 4 equations are incorrect. See the attached screenshot for a detailed breakdown of why the last four equations are incorrect.

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3(q−7)=27 need help plzz 1st peep gets brainlest

ANTONII [103]

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▹ Answer

q = 16

▹ Step-by-Step Explanation

3(q - 7) = 27

3q - 21 = 27

Add 21 to both sides:

21 + 21 = na

27 + 21 = 48

3q = 48

Divide both sides by 3:

3/3 = q

48/3 = 16

q = 16

Hope this helps!

CloutAnswers ❁

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8 0

4 years ago

Read 2 more answers

How could you find the area of the pink title? Choose all that apply.

DaniilM [7]

By using green to find the pink locate all the ponies

3 0

3 years ago

Bruce would like to buy a pair of shoes that cost $155. He already has $35. His mom will pay him $20 a week to do chores around

elixir [45]

Answer:

155=35= 120

120+20x=155

Step-by-step explanation:

3 0

3 years ago

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I WILL GIVE BRAINLISET!! no links por favor 8) Simplify.

Marina CMI [18]

Answer:

√ 15 + √ 10

Step-by-step explanation:

The answer is above

3 0

3 years ago

Engineers want to design seats in commercial aircraft so that they are wide enough to fit 9090% of all males. (Accommodating 1

Molodets [167]

Answer:

Hip breadths less than or equal to 16.1 in. includes 90% of the males.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14.5

Standard Deviation, σ = 1.2

We are given that the distribution of hip breadths is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10.

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 14.5}{1.2})=0.10$

$= 1 -P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.10$

$=P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.90$

Calculation the value from standard normal z table, we have,

$P(z < 1.282) = 0.90$

$\displaystyle\frac{x - 14.5}{1.2} = 1.282\\x = 16.0384 \approx 16.1$

Hence, hip breadth of 16.1 in. separates the smallest 90% from the largest 10%.

That is hip breaths greater than 16.1 in. lies in the larger 10%.

4 0

3 years ago