3 years ago

PLEASE HELP Simplify the expression to a + bi form: √ 25- √ -25 – √ 36 – √ -4

Mathematics

1 answer:

klasskru [66]3 years ago

7 0

Answer:

-1+3i

Step-by-step explanation:

$\sqrt{25} - \sqrt{ - 25} - \sqrt{36} - \sqrt{ - 4}$

Sqr root of 25 and 36 are 5 and 6 respectively

Sqr root of -25 and -4 are 5i and 2i respectively

Combine like with like

5-6=-1

5i-2i=3i

-1+3i

You might be interested in

Is 9/11 rounded to 0,1/2 or 1

uranmaximum [27]

9/11 is rounded to 1. It rounds up because 9 is higher than 5, which is the middle of 11.

4 0

4 years ago

Read 2 more answers

Find the equation of the plane that passes through the point (4,3,−2)(4,3,−2) and contains the line x(t)=−4−4t,y(t)=−1+3t,z(t)=1

aniked [119]

We Need more info please us at brainly would like you to provide more information so we can answer your question right away thank you have a goodnight.

6 0

3 years ago

A pelican is flying 17 feet above sea level. Directly below the bird is a trout that is swimming 23 feet below

Nadusha1986 [10]

A
Because if you do the math

4 0

3 years ago

Solve the inequality 5u≤8u−21 and write the solution in interval notation

PIT_PIT [208]

Answer:

Step-by-step explanation:

$5u\leq 8u-21$

Subtract 8u from both sides

$-3u\leq -21$

Divide by -3 on both sides

$u\geq 7$

Interval notation: [greater/less than or equal to], (greater or equal to)

[7,∞)

3 0

3 years ago

Which expression best represents the difference between triple a number and double a number?

rusak2 [61]

Let x be the number. With this representation, double this number is 2x and thrice is 3x. We are asked to give an expression for the difference (subtraction) of these numbers, the answer to this question should be,
3x - 2x

6 0

3 years ago

Read 2 more answers