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2 years ago

Given that lines b and c are parallel, select all that apply.

Mathematics

1 answer:

Ray Of Light [21]2 years ago

8 0

Answer:

3 and 7

1 and 4

Step-by-step explanation:

[3 and 7]

These two angles are prooved congruent by corresponding angles

[1 and 4]

These two angles are prooved congruent by opposite vertical angles.

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This question is in "Real Numbers" Find: −24÷ 4 5

jolli1 [7]

Yea the answer is negative 30

4 0

3 years ago

Read 2 more answers

A boy spent 3/8 of his money and had 15.00 left. How much did he spend?

geniusboy [140]

Answer: $25 spent

Step-by-step explanation: the boy spent $15/total.

15/total=3/8

Divide by common factor: $15/3=$5 (1/8 total money

$5x8=$40

$40-$15=$25 spent

6 0

2 years ago

Can you please help me solve this equation?

TiliK225 [7]

Answer: ((T/(2pi))^2)g

Step-by-step explanation: just solve for L

4 0

3 years ago

The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher

ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340$

Thus, the correct answer is

Option D) 340

7 0

3 years ago

Given z=4+3i evaluate z

DerKrebs [107]

Answer:

Step-by-step explanation:

Assuming we want to evaluate |z|, given that, z=4+3i.

Then, by definition of modulus,

$|x + yi| = \sqrt{ {x}^{2} + {y}^{2} }$

$|4+ 3i| = \sqrt{ {4}^{2} + {3}^{2} }$

$|4+ 3i| = \sqrt{ 16+ 9 } \\ |4+ 3i| = \sqrt{25 } \\ |4+ 3i| = 5$

Therefore the modulus be of the given complex number is 5 units

5 0

3 years ago