What is the square root of -16?
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Answers

Answer 1

[tex]4i[/tex]

[tex]i=\sqrt{-1}[/tex]

[tex]\sqrt{-16}=\sqrt{-1}*4[/tex]

[tex]\sqrt{-16}=i*4[/tex]

[tex]4i[/tex]

Hope this helps.

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Related Questions

given the following functions f(x) and g(x), evaluate (gºf)(-2). Enter answer.
f(x)=2x^2+2x-5
g(x)=-1/-4x+6​

Answers

Answer:

the composition results in [tex]\frac{23}{4}[/tex]

Step-by-step explanation:

Assuming that what you typed for function g is correct (looks a bit peculiar, but we will use it as typed):

[tex]g(x)=-\frac{1}{-4x} +6[/tex]

gof(-2) can be understood as: g(f(-2)), so what we need to do is to find the value for f(-2) using its given expression, and using then the obtained value as input for g(x):

[tex]f(x)=2x^2+2x-5\\f(-2)=2\,(-2)^2+2\,(-2)-5\\f(-2)= 8-4-5\\f(-2)= -1[/tex]

So, we now evaluate g(-1):

[tex]g(x)=-\frac{1}{-4x} +6\\g(-1)= -\frac{1}{-4(-1)} +6\\g(-1)= -\frac{1}{4} +6\\g(-1)=\frac{23}{4}[/tex]

Another college precalculas question, please and thank you!

Answers

Answer:

B) (-∞,∞)

Step-by-step explanation:

The domain is the x-values, so it’s all real numbers in this graph.  

I would use interval notation and choose B) (-∞,∞)

The range is the y-values, so it’s (2,-1), if that’s the next question.

A rectangle is 5 times as long as it is wide. If the area is 45 square feet, find its perimeter.

Answers

Answer:

225 sq ft

Step-by-step explanation:

If the rectangle is 5 times as long as it is wide and the area is 45 sq ft then that would make it 225 sq ft. Happy to help!

Precalc Help me Please

Answers

We just need to solve for y when x = -2

Solution:

y = 2|-2 + 1|

y = 2|-1|

y = 2(1)

y = 2

Therefore, the answer is Option 3

Best of Luck!

(10x^4+5x^3+4x^2-9)(x-1)​

Answers

Answer:

10x3 - 5x2 + 9x - 9

Step-by-step explanation:

                           10x4 + 5x3 + 4x2 - 9

Simplify   ————————————————————

                                        x + 1        

Answer:

10x^5 - 5x^4 - x^3 - 4x^2 - 9x + 9

Step-by-step explanation:

(10x^4+5x^3+4x^2-9) × (x-1)​

10^5 - 10x^4 + 5x^4 -5x^3 +4x^3 - 4x^2 -9x + 9

Collect Like terms

10^5 - 10x^4 + 5x^4 -5x^3 +4x^3 - 4x^2 -9x + 9

10^5 - 5x^4 -x^3 - 4x^2 -9x + 9

Final Answer

10x^5 - 5x^4 - x^3 - 4x^2 - 9x + 9

Find the area of the parallelogram shown below.60 squ

Answers

Answer:

A

Step-by-step explanation:

The area for a parallelogram is given by the formula:

[tex]A=bh[/tex]

Where b is the base length and h is the vertical height.

The base length is 6 and the height is 10 (if you flip the figure 90 degrees). So:

[tex]A=6(10)[/tex]

Multiply:

[tex]A=60\text{ units}^2[/tex]

Our answer is A.

And we're done!

Find the midpoint of the segment with the following endpoints.
(5,9) and (0,3)

Answers

Answer:

(5/2, 6)

Step-by-step explanation:

(x, y)=[(5+0)/2, (9+3)/2]

(x, y)=[5/2, 12/2]

(x, y)=(5/2, 6)

The Midpoint of the Line Segment that has the endpoints (5,9) and (0,3) is (5/2,6).

What is the line segment?

In geometry, a line segment is a part of a line that is bounded by two end points, and contains every point on the line that is between end points.

Now it is given that,

The endpoints of line segment is (5,9) and (0,3)

So, x₁ = 5

y₁ = 9

x₂ = 0

y₂ = 3

Let (x,y) be the midpoint of segment .

∴To find the midpoint of segment we have,

(x,y) =  {[(x₁+x₂ )/2] , [(y₁+y₂ )/2]}

Put the values, we get

(x,y) = (5+0)/2 , (9+3)/2

solving them,

(x,y) = {(5/2) ,(12/2)}

or,

(x,y) = (5/2,6)

which is the required midpoint of the line segment.

Hence,the Midpoint of the Line Segment that has the endpoints (5,9) and (0,3) is (5/2,6).

To learn more about midpoint of line segment :

brainly.com/question/12774890

#SPJ2

Angles that are supplementary

Answers

Answer:

Two angles are said to be supplementary when they add up to 180°.

Answer:

Angles are supplementary if the add up to 180 degrees

Step-by-step explanation:

So many different angles can be supplementary.

Examples:

Ajacent Angles

Corresponding Angles

Alternate Interior Angles

Alternate Exterior Angles

And a few other angles

Hope This Helps :)

forget this ever happened at all

Answers

Answer:

i- isnt it 2-

Step-by-step explanation:

1 + 1 is 2

i hope this helped?

soIve: 12 = -4(-6x - 3)


x = -0.625
x = -0.375
x = -2
x = 0

Answers

Answer:

The answer is "x = 0"

Step-by-step explanation:

Step-by-step explanation: Hope this answer is helpful...

Make me as brainliest...

What is the y in the equation? 15-y-3y=17

Answers

Answer: -1/2 or .5
-14y=17-15
-4y=2
Y=1/2

Solve for t.

-1 (t + 8) = -1.7

Answers

Answer:

t=-6.3

Step-by-step explanation:

-1 (t + 8) = -1.7

-1*t+-1*8=-1.7

-1t-8=-1.7

   +8      +8

-1t=-1.7+8

-1t=6.3

-1t/-1=6.3/-1

t=-6.3

I hope this helped you.

Please mark Brainliest.

Have a great day!!!!!!!!

Answer: -6.3

Step-by-step explanation:

distribute whats in the parenthesis and you should get -1t-8= -1.7add 8 on both sides... -8 should cancel out with the positive 8 and you should get 6.3 when solving for -1.7+8. Drop your -1t divide -1 on both sides and the answer should be -6.3

let me know if you have any questions

Please answer the question. Thank you.

Answers

your answer will be D
Answer: not sure if B or A is first but one of them and than it goes C and D

Point U is located at (1,-4) on the coordinate plane. Point U is reflected on

-axis to create point U'. What ordered pair describes the location of U'?

Answers

Given :

A point U located at (1,-4) on the coordinate plane.

To Find :

The reflection of point U on x-axis.

Solution :

Reflection of any point ( h , k ) on x-axis is ( h , - k ) .

So , the reflection of point U i.e ( 1 , -4 ) is ( 1 , 4 ) .

Therefore , the ordered pair describes the location of U' is ( 1 , 4 ).

Hence , this is the required solution .

2/7+3/8= Please I don’t know what to do so can you help me

Answers

37/56 is the answer

you can cross multiply

Answer:

37/56

Step-by-step explanation:

Find the least common multiple of the denominators (56).

7x8=56

8x7=56

2x8=16

3x7=21

16+21=37

37/56

What is an equation of the line that passes through the points (3, 4) and (4, 6)?

Answers

Answer:

____________

y = 2x - 2

____________

I think this is correct

here's it plotted

Answer

y = 2x - 2

Step-by-step explanation

Algebra questions.

if x=3 then 2x3-2=4

So if it WAS 3 then Y would be 4

Simplify the given expression below:
(-5 + 3i) times(1 - 2i)

Answers

Answer:

Step-by-step explanation:

Hello,

[tex](-5+3i)\times(1-2i)=-5(1-2i)+3i(1-2i)\\\\=-5+10i+3i-6i^2\\\\=-5+13i+6\\\\\boxed{=1+13i}[/tex]

Thanks

Answer:

Same answer as the other person, it is 1 + 13i

Step-by-step explanation:

They were first and is right so I don't think I have to put down a explanation! ^^

Please 5 stars and thank me if I'm right! -w-

Two angles are supplementary. One angle has a measure that is five less than four times the other. What is the measure of the larger angle?

Answers

Answer:

C

Step-by-step explanation:

4x-5+x=180. Add 5 to both sides

5x=185. Divide by 6

X=37

180-37=143

143


Use the map to find the distance between Brookline and Davenport to the nearest tenth

Answers

Answer:

8.5

Step-by-step explanation:

The distance between Brookline(8, 2) and Davenport(5, 10) can be calculated using the distance formula given as [tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y1)^2} [/tex].

Let,

[tex] Brookline(8, 2) = (x_1, y_1) [/tex]

[tex] Davenport(5, 10) = (x_2, y_2) [/tex]

[tex] d = \sqrt{(5 - 8)^2 + (10 - 2)^2} [/tex]

[tex] d = \sqrt{(-3)^2 + (8)^2} [/tex]

[tex] d = \sqrt{9 + 64} = \sqrt{73} [/tex]

[tex] d = 8.5 [/tex] (nearest tenth)

Write a story that includes both integers -10 and 12.

Answers

Answer:

In Alaska, it was -10 degrees in the morning and rose by 12 degrees.

Step-by-step explanation:

Temp went from -16 to 7.What was the change in temperature

Answers

Answer:

Change in temperature is +23 degrees.

Answer:

23 Degrees

Step-by-step explanation:

To solve this, we set up an equation:

T = 7 - -16

This can be rewritten as:

T = 7 + 16

T = 23

___________________________________________________I AM ALWAYS HAPPY TO HELP :)

Help me please i dont understand :(

Answers

h(x)=0 means that you replace the x in the problemwith the number given. 4(0)+4= 4

Which expression is equivalent to 2(n - 7) - 3(2 -6n)

Answers

Answer:

20(n - 1)

Step-by-step explanation:

2(n - 7) - 3(2 -6n) =

= 2n - 14 - 6 + 18n

= 20n - 20

= 20(n - 1)

The value of the equation A = 2(n - 7) - 3(2 -6n) is

A = 20 ( n- 1 )

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be A

Now , the equation A = 2( n - 7 ) - 3( 2 - 6n )

The equation can be simplified as

A = 2(n) - 2(7) - 3(2) + 3(6n)

A = 2n - 14 - 6 + 18n

Now , on adding the similar terms in the equation , we get

A = 2n + 18n - ( 14 + 6 )

A = 20n - 20

Taking the common term of 20 , we get

A = 20 ( n - 1 )

Therefore , the value of A is 20 ( n - 1 )

Hence , The value of the equation A = 2(n - 7) - 3(2 -6n) is A = 20 ( n- 1 )

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ5

please answer thank you!

Answers

Answer:

C

Step-by-step explanation:

C is the answer because -2+16=14 and 9x+x=10x

what is the mathematical symbol for 0 is an integer

Answers

Answer:

0

Step-by-step explanation:

there is no symbol for 0

write the sentence as a equation
b is 380 more than the quality y times 268​

Answers

A: b = 268y + 380
is : =

1. Find the value of the expression.
7755 • 21

Answers

7755 x 21 is 162,855

Answer:

you can just calculate the answer

Step-by-step explanation:

on a calculated put 7766 times 21 and that will be your answer

What the hello does this mean -----> 42 × 10 = 10 – 4 × 70

Answers

Answer:

whatever 42 times 10 equals, it also equals what ten minus 4 times seventy is

Step-by-step explanation:

so both 42 × 10

and 10 – 4 × 70

EQUAL

420

(pffft 420....sorry its funny)

Answer:

Associative properties

Step-by-step explanation:

42 x 10 = 420

(10-4)=6

6 x 70 = 420

Solve

LaTeX: \frac{-x}{3}<5

Answers

Answer:

x > -15

Step-by-step explanation:

-x / 3 < 5

(-x / 3) * 3 < 5 * 3

-x < 15

x > -15 (Remember to flip the sign when multiplying or dividing an inequality by a negative number.)

Answer:

49

Step-by-step explanation:

Alternate Interior Angles Theorem a. b. c. Corresponding Angles Flow Proof a. b. c. d. e. Proof Diagram a. b. c.

Answers

Answer:

Step-by-step explanation:

(1). m∠5 = 40° → (a) Given

m∠2 = 140° → (b) Given

∠5 and ∠2 are supplementary angles → (c) Interior angles on the same side of the transversal.

∠5 and ∠2 are the same side interior angles → (d) Both angles are supplementary

a║b → (e) By interior angles theorem of the parallel lines.

(2).            Statements                 Reasons

   1.     l║n                               1. Given

   2.    ∠2 ≅ ∠6                      2. Corresponding angles  

   3.    ∠4 ≅ ∠2                      3. Vertical angles

   4.    ∠6 ≅ ∠4                      4. Transitive property of equality

(3).         Statements                Reasons

     1.       ∠1 ≅ ∠5                   1. Given

    2.       ∠4 ≅ ∠1                  2. Vertical angles

    3.       ∠4 ≅ ∠5                 3. Alternate interior angles

    4.       p║r                         4. Definition of parallel lines

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