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3 years ago

5

What is

6 + \sqrt49" align="absmiddle" class="latex-formula"> written as a complex number in the form $a + bi$ ?
A. 7 - 4i
B. 4 + 7i
C. 7 + 4i
D. -4 + 7i

1 answer:

laiz [17]3 years ago

3 0

Answer: C. 7+4i

Step-by-step explanation:

Just did the math.... square root of -16= 4i+ equate root of 49=7.

So...the answer is 7+4i

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Help please<br><br> 3 + 3 + 2 x 2 x 1 = ?

kramer

3 + 3 + 2 x 2 x 1 = ?

3 + 3 = 6

2 x 2 = 4

6 + 4 = 10

10 x 1 = 10

Your answer is <u>10</u>

hope this helps!

3 0

4 years ago

Find the probability of exactly three successes in six trials of a binomial experiment in which the the probability of is 50%.

posledela

Answer: 31.25%

Two ways to solve this problem:

#1: Use the formula: $P(X=x)={n}Cx_{} *p^{x}*(1-p)^{n-x}$

#2 Use a graphing calculator and use the function binompdf(n, p, x)

x = 3
n = 6
p = 0.5

#1: Formula:

$P(X=3)=_{6}C_{3}*0.5^{3} *(1-0.5)^{6-3}=\frac{6!}{3!(6-3)!} *0.5^{3} *0.5^{3}\\=\frac{6!}{3!*3!} *0.5^{3} *0.5^{3}=20*0.125*0.125=0.3125$

#2: Faster method

binompdf(6, 0.5, 3) = 0.3125

8 0

3 years ago

Find the value of 15.0 NN in pounds. Use the conversions 1slug=14.59kg1slug=14.59kg and 1ft=0.3048m1ft=0.3048m.

finlep [7]

3.37 lb

Step-by-step explanation:

The question requires you to convert weight in Newtons to weight in pounds.

Given 15.0 N to convert to pounds, remember the conversion rate where;

1 Newton = 0.224809 pound-force

1 N= 0.224809 lb

15 N= ?

Perform cross-product

=15*0.224809

=3.37 lb

Learn More

Weight conversions:brainly.com/question/762013

Keywords : value,pounds,conversions,significant figures

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3 0

3 years ago

What is 0.04 times 7.6? Using ur work

WARRIOR [948]

Well, you'll multiply regularly, then move da decimals to the left 3 times, because if you add the amount of decimal places in 0.04 and 7.6, (2 + 1), it equals 2, but so 0.04 times 7.6 = 0.304
I hope I helped! =D

5 0

3 years ago

PLEASE ANSWER<br> Given the domain {-4, 0, 5}, what is the range for the relation y = -2x + 4?

maw [93]

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$y = f(x) = - 2x + 4$

_________________________________

$f( - 4) = - 2( - 4) + 4$

$f( - 4) = 8 + 4$

$f( - 4) = 12$

_________________________________

$f(0) = - 2(0) + 4$

$f(0) = 0 + 4$

$f(0) = 4$

_________________________________

$f(5) = - 2(5) + 4$

$f(5) = - 10 + 4$

$f(5) = - 6$

_________________________________

Thus ;

Range = { -6 , 4 , 12 }

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5 0

3 years ago

Read 2 more answers