3 years ago

What is the definition of i? What do we use it for?

Mathematics

1 answer:

SSSSS [86.1K]3 years ago

5 0

I is an imaginary number used to find the square root of a negative number.
sqrt-1 is 1i
sqrt-16 is 4i and so on

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Find the value of b if side a measures 8.7 cm?

Shkiper50 [21]

Answer:

The correct equation is 8.7 + b = 54.6

Step-by-step explanation:

because it is given that measure of side a is 8.7cm, in all other equations the values of a is different.

6 0

3 years ago

QS¯¯¯¯¯¯¯ bisects ∠PQR . If m∠PQS = 5x and m∠RQS = 2x + 6, then what is m∠PQR ? m∠PQR is

soldi70 [24.7K]

Answer:

$PQR = 20$

Step-by-step explanation:

Given

Bisector: QS

$PQS = 5x$

$RQS = 2x + 6$

Required

Determine PQR

Since PQR is bisected to PQS and RQS, we have that

$PQS = RQS$

Substitute expressions for PQS and RQS

$5x = 2x + 6$

Collect Like Terms

$5x - 2x = 6$

$3x = 6$

Divide both sides by 3

$x = 2$

Solving for PQR;

$PQR = PQS + RQS$

$PQR = 5x + 2x + 6$

$PQR = 7x + 6$

Substitute 2 for x

$PQR = 7 * 2 + 6$

$PQR = 14 + 6$

$PQR = 20$

4 0

3 years ago

Jerry starts a new career making $32,000 annually. Each year for a total of 30 years

LUCKY_DIMON [66]

Step-by-step explanation:

if your asking how much money will he make for 30 years it will be 960,000. if your asking how much money will he make for 1 year it will be 8,000 I think I'm not sure

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2 years ago

What fraction of 2 minutes is 6<br>seconds?

Inga [223]

Answer:

1/20 of 2 minutes = 6 seconds

5 0

2 years ago

Read 2 more answers

The cost of a pair of shoes is 39.99. The tax rate is 7.25% what is the total cot of the shoes

almond37 [142]

Tax would come out to $2.89, add that to the cost of the shoes, the total cost is $42.88

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3 years ago