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3 years ago

Which expression is equal to (5−2i)−(1+3i)

Mathematics

2 answers:

Nikitich [7]3 years ago

8 0

Answer:

4-5i

Step-by-step explanation:

(5-2i)-(1+3i)

5-2i-1-3i

5-1-2i-3i

4-5i

Levart [38]3 years ago

6 0

Answer:

4-5i

Step-by-step explanation:

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A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t

Alexxandr [17]

Answer: A. 0.20

Step-by-step explanation:

Let A be the event of employees needed corrective shoes and B be the event that they needed major dental work .

We are given that : $P(A)=0.08\ ;\ P(B)=0.15\ ;\ P(A\cap B)=0.03$

We know that $P(A\cup B)=P(A)+P(B)-P(A\cap B)$

Then, $P(A\cup B)=0.08+0.15-0.03= 0.20$

Hence, the probability that an employee selected at random will need either corrective shoes or major dental work : $P(A\cup B)= 0.20$

hence, the correct option is (A).

6 0

4 years ago

The top of the rectangular box is 15 cm by 20 cm and its hight is 4 cm. And ant begins at one corner of the box and walks along

Nimfa-mama [501]

Answer:

92 cm

Step-by-step explanation:

Look at the attached photo, it may give you a better understanding

As we know it touches all 8 corners so the shortest distance in cm that the ant may travel is:

15+ 4+15+4 +20 + 15 +15 + 4 = 92 cm

8 0

3 years ago

Can somebody answer this? thankyu

kvasek [131]

Answer:

1. 3, 12, 48, 192, 768 Ratio: x4

2. 8, 16, 32, 64, 128 Ratio: x2

3. 120, 60, 30, 15, 7.5 Ratio: ÷2

4. 5, 10, 20, 40, 80, 160 Ratio: x2

5. 1.3?, 4, 12, 36, 108, 324 Ratio: x3

Hope this helps!

I'm not sure about the first one on question 5 though.

8 0

3 years ago

Please see image below

vovangra [49]

D is the answer I believe

6 0

3 years ago

The distance a spring stretches varies directly

maksim [4K]

Its c 42 inches :)............

4 0

3 years ago