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Charra [1.4K]
3 years ago
12

Multiply (4+I)(1-5i)

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0
The rule to remember for this problem is: i^2 = -1
(4 + i)(1 - 5i)
4 - 20i + i - 5i^2
4 - 19i + 5
9 - 19i
You might be interested in
HELP!!!!!
antoniya [11.8K]

Answer: 82°

Step-by-step explanation:

<CDE = far arc - near arc / 2

i.e

<CDE = arcCBE - arcCE / 2

arcCE = 98°

arcCBE = 360° - 98° = 262°

<CDE = 262° - 98° / 2

<CDE = 164 / 2

<CDE = 82°

Therefore the measure of < CDE is 82°

8 0
3 years ago
Read 2 more answers
What is the value of the expression when d=3. 7d²+10 (answer choice A.63 B.52 C.31 D.73 )
devlian [24]
You have to replace d woth 3 in formula
7d^2+10=7*(3)^2+10=7*9+10=63+10=73
d is the correct answer
6 0
3 years ago
Read 2 more answers
What’s the measure of angle M
alina1380 [7]

Answer:

50

Step-by-step explanation:

take the arc degrees (100) and divide by 2

Inscribed angles are 1/2 of the created arc degrees

7 0
3 years ago
Read 2 more answers
The atmospheric pressure on an object decreases as altitude increases. If a is the height (in km) above sea level, then the pres
seraphim [82]

Answer:

373.8mmHg

Step-by-step explanation:

a =height (in km) above sea level,

the pressure P(a) (in mmHg) is approximated given as

P(a) = 760e–0.13a .

To determine the atmospheric pressure at 5.458 km, then we will input into the equation

P(5.458km) = 760e–0.13a .

= 760e^(-0.13×5.458)

=760e^-(0.70954)

= 760×0.4919

=373.8mmHg

Therefore, the atmospheric pressure at 5.458 km is 373.8mmHg

3 0
2 years ago
Help with this please
Brut [27]

Answer:

1. area = 16.492

2. area = 19.798

3. area = 15.874

4. area = 13.555

5. area = 12.349

6. area = 24.37

<em>good luck, i hope this helps :)</em>

8 0
3 years ago
Read 2 more answers
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