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My name is Ann [436]
3 years ago
12

What is the degree of a polynomial that has roots of -2, 4i and -4i ?

Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

3

Step-by-step explanation:

three

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Solve the simultaneous<br> equations<br> 2x+y = 3<br> x+y=1
Murrr4er [49]

Answer:

x = 2, y = -1

Step-by-step explanation:

Now change the equation,

→ x + y = 1

→ y = 1 - x

Then the value of x will be,

→ 2x + y = 3

→ 2x + 1 - x = 3

→ x = 3 - 1

→ [ x = 2 ]

Therefore, the value of x is 2.

Now value of y will be,

→ y = 1 - x

→ y = 1 - 2

→ [ y = -1 ]

Hence, the value of y is -1.

8 0
1 year ago
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Simplify the ratio : 72:16:32<br> What is ans
ArbitrLikvidat [17]

Answer:

9 : 2 : 4

Step-by-step explanation:

Given

72 : 16 : 32 ( divide each part of the ratio by 8, the LCM of 72, 16, 32 )

= 9 : 2 : 4

6 0
2 years ago
a pie chart is divided into four sectors in fig. 12.42. Each sector represents a percentage of the whole. The two larger sectors
Novosadov [1.4K]

Answer:

Angle formed by the sector measuring x% will be 126°.

Step-by-step explanation:

Since, sum of all sectors formed in a circle is 100%.

By adding the measures of all the sectors,

x + x + 21 + 9 = 100

2x + 30 = 100

2x = 70

x = 35%

Now we know sum of all the central angles formed at the center of a circle = 360°

Therefore, angle formed by x% = 360° × 35%

                                                    = \frac{360\times 35}{100}

                                                    = 126°

8 0
2 years ago
Technology required. Find the missing measurements.​
Agata [3.3K]

Answer: 40.82

Step-by-step explanation:

Use pythagoras theorem to solve

Root 35 squared + 21 squared = 40.82

3 0
2 years ago
0 = a + 27.98<br> Please I need help
pogonyaev

Answer:

a = -27.98

Step-by-step explanation:

3 0
3 years ago
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