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2 years ago

13

Select the correct answer. Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form. A. 5 + 39i B. 5 + 17i C. 5 −

39i D. 5 − 17i

1 answer:

Anastasy [175]2 years ago

8 0

Answer:

<em>b. 5 + 17i</em>

Step-by-step explanation:

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What’s 0.005 recurring as a fraction

PilotLPTM [1.2K]

Answer:

0.005 = 5/1000 = 1/200

Hope it helps

3 0

2 years ago

It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 120 feet. A transportat

katrin2010 [14]

Answer: $H_0:\mu=120$

$H_A:\mu\neq120$

Step-by-step explanation:

Let $\mu$ denotes the average braking distance for a population of small car.

Given : It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 120 feet.

i.e. $\mu=120$

Objective of test : Whether the statement made in the advertisement is false

i.e. $\mu\neq120$

Since '=' signs is contained by Null hypothesis and alternative hypothesis is against it.

So the null and the alternative hypotheses for the test will be:

$H_0:\mu=120$

$H_A:\mu\neq120$

4 0

3 years ago

Lin runs 5 laps around a track in 8 minutes.

andrezito [222]

Answer:

To run one lap Lin takes 1.6 minutes.

Step-by-step explanation:

To find this answer you would do 8 divided by 5. Always remember when dividing time goes first unless the instructions / directions / your teacher says differently. So, when you do 8 divided by 5 the answer you get is 1.6, and there is your answer. Also to check your answer you can do 1.6 times 5, and you get 8, so you know that 1.6 is the correct answer.

5 0

2 years ago

If the number in the numerator of a unit rate is one what does this indicate about the equivalent unit rate

OleMash [197]

I don't know if this helps but an equivalent rate is:Rates that represent the same comparison; for example 90km
2h Fraction<------
and 45km/h Confusing i know

7 0

3 years ago

Graph the linear equation to find three points that solve the equation then plot on the graph negative -x -4y =-18

Eddi Din [679]

X
=
18
−
4
y good luck buddy

7 0

3 years ago