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3 years ago

If the polynomial function P has real coefficients and if a + bi is a zero of P, then Incorrect:________

Mathematics

1 answer:

ivolga24 [154]3 years ago

5 0

Answer:

a -bi
2 -i

Step-by-step explanation:

If a polynomial has real coefficients, complex zeros come in conjugate pairs.

If a+bi is a zero, then so is a-bi. (a-bi is the conjugate of a+bi)

If 2+i is a zero, then so is 2-i.

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Translate 22% of b into an expression

romanna [79]

Answer:

11/50b

Step-by-step explanation:

22% of b = 22/100×b

= 11/50b

3 0

3 years ago

A teacher needs 256 lengths of string cut to 40cm each. If balls of string are 30M long, how many balls are needed?

Otrada [13]

First you need to work out how much string is needed -
256 pieces needed x 40cm each:
256 x 40 = 10240cm

Then, convert to metres (100cm = 1m)
10240 / 100 = 102.4m

Then, you work out how many balls are needed:
30 can fit into 102.4 3 times with .41m to spare. So, you need three balls of string, PLUS another one to cover the 41cm

So to conclude: 4 balls of string are needed.

4 0

3 years ago

They Yankees won 90 of their 162 games last season. What percent of the games did they win?

LUCKY_DIMON [66]

Answer:

55.6%

Step-by-step explanation:

The fraction 90/162 in its decimal equivalent is 0. 556. Multiplying this by 100 yields the percentage 55.6%.

5 0

3 years ago

Read 2 more answers

What is the apparent slope of the line graphed below

maria [59]

I think the answer would be -2.5 because 0-5=-5 and 4-2=2 you subtract the perfect points X1-x2 with y2-y1

4 0

3 years ago

pentagon [3]

Answer:

48 grams

Step-by-step explanation:

pretzels : peanuts : cheese sticks

8 : 5 : 1

64 g : ? g : ? g

grams of peanuts = 5*64 / 8 = 40 g

grams of cheese sticks = 64*1 /8 = 8 g

<u>grams of peanuts and cheese sticks</u> = 40 + 8 = 48 grams

5 0

3 years ago