Simply please will give brainlist to first right answer

Simply Please Will Give Brainlist To First Right Answer

Answers

Answer 1

Answer:

12-14i

Step-by-step explanation:

[tex](-1-3i)(3+5i)\\\\=-1(3)-1(5i)-3i(3)-3i(5i)\\\\=-3-5i-9i-15i^2\\\\= -3-14i-15i^2\\\\[/tex]

here we know that i^2=-1

[tex]=-3-14i-15(-1)\\\\=-3-14i+15\\\\=12-14i[/tex]


Related Questions

If x and y vary inversely and x = -3 when y = 12, what is the constant of variation?

Answers

k=-36

Step-by-step explanation:

x inversely proportional to y

x=1k/y

where k = constant

x= -3, y= 12, k = ?

-3=k/12

k = -3 × 12

k = -36

‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️
A recipe calls for 6 cups of water and 4 cups of flour.

a. What is the ratio of water to flour?

b. If the recipe is increased to use 6 cups of flour, how much water should be used?

c. If the recipe is decreased to use 2 cups of water, how much flour should be used?

Answers

Answer:

6 to 4

Step-by-step explanation:

The amount of water is 6 and the amount of flour is 4 therefor there is 6 to 4 cups of water.

Evaluate the expression when $a=3$ and $c=12$ .​ plzz help meeee

Answers

No expression shows up

Solve for y:
-6+ 2y =12

Answers

Answer:

9

Step-by-step explanation:

-6+2y=12

+6 +6

2y=18

2 2

9

Help me quickly just give the answer

Answers

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

48 divided by 8 = 6 or 8 x 6 = 48

Please help me if you are good at math!

Answers

Answers:
1, 6, 36, 216: Geometric
12, 4, -4, -12: Arithmetic
1, 2, 8, 64: Neither
-216, -72, -24, -8: Geometric

Explanations:
Arithmetic Sequence: Every number in the sequence is either added or subtracted by the same number. We know that 12, 4, -4, -12 is arithmetic because each number in the sequence is subtracted by 8.

Geometric Sequence: Every number in the sequence is either multiplied or divided by the same number. We know that 1, 6, 36, 216 is geometric because each number in the sequence is multiplied by 6. We also know that -216, -72, -24, -8 is geometric because each number in the sequence is being divided by 3.

Neither: 1, 2, 8, 64 is neither because it is not being added, subtracted, multiplied, or divided by the same number.

I hope this helped!

True or False:

cot = 1/tan

Answers

Answer:

I think its true??? right... its true

Step-by-step explanation:

Answer:

it is true

Step-by-step explanation:

pls help with this math question

Answers

Answer:

its x>-249

Step-by-step explanation:

this should be the answer cause x is 0 on the line and the 249 is negative so its much less than 0

MATCHING GRAPHS! which ones which!! pls help ill award branliest

Answers

Answer:

Its A and B i beleive.

Step-by-step explanation:

I think it’s
Top right is c
Bottom right is a

Alan Is saving money to buy a game. So far he has saved $20, which is four-fifths of the total cost of the game. How much does the game cost?

Answers

Answer:

The game cost $25.

Step-by-step explanation:

20 divided by 4 = 5

5 = 1/5 of the total cost

5x5 = 25

Answer:

25 bucks

Step-by-step explanation:

divide 20 by 4 then add 5 til you do it 5 times. that will be the answer

What is the equation of the following are you sure to scroll down first to see all answer options

Answers

Answer:

Y=-3x+0 or Y=-3x

Step-by-step explanation:

Y=mx+b

m=slope

b=y-intercept (where the line crosses the y axis)

The line crosses the Y axis at (0,0), so:

Y=mx+0 or

Y=mx

Slope:

Rise/run= Change in y/Change is x= 9/-3=-3

So:

Y=-3x+0 or

Y=-3x

Answer: 3x + y = 0

Step-by-step explanation: Remember that slope is represented by

rise over run from one point to the next on our graph.

To get from the point (0, 0) to (3, -9), we go down -9 units

so our rise is -9 and we run 3 units so our run is 3.

Our slope therefore or m = -9/3 or -3.

Our y-intercept is represented by the point where this line

crosses the y-axis which in this case is up 0 units.

So our y-intercept or b = 0.

Since we have the slope and y-intercept of our line,

we can now write its equation in y = mx + b form.

Since m = -3 and b = 0, that gives us y =-3x + 0.

Now we convert this equation to standard form.

Just add 3x to both sides to get 3x + y = 0.

So the equation of this lie is 3x + y = 0.

Pleaseeee helppppp meeeeee

Answers

Answer:

the answer is (1)

Step-by-step explanation:

k = am +3mx

i) factorize out m from the expression

k = m(a+3x)

ii) rearrange the equation using commutative property

m(a+3x) = k

iii) divide both sides of the equation by (a+3x)

[tex] \frac{m(a+3x)}{(a + 3x)} = \frac{k }{(a + 3x)} [/tex]

[tex]m = \frac{k }{a + 3x} [/tex]

Elena Carlos sold a house for $145,000. If her commission is 5%, how much did she earn?
Show work

Answers

Answer:

7250

Step-by-step explanation:

145,000

x

0.05

145000 / 100 = 1450.

1450 x 5 = 7250

Can someone help me I tried many ways but got a different answer

Answers

Answer:

v = 21

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Terms/Coefficients/Degrees

Geometry

All angles in a triangle add up to 180°

Step-by-step explanation:

Step 1: Set Up Equation

2v + 3v + 75 = 180

Step 2: Solve for v

Combine like terms:                    5v + 75 = 180Isolate v term:                              5v = 105Isolate v:                                       v = 21

Answer:

21 degrees

Step-by-step explanation:

3v + 2v + 75 = 108

3v + 2v = 5v

5v + 75 = 108

-75 -75

÷5. 105

÷5 = 21

X=21

Which expression is equivalent to 32×3-5? 1 2) 1 3) 1 104) 에​

Answers

Answer:

32 x 3 - 5 = 91

Step-by-step explanation:

First multiply because of order of operations (PEMDAS,) to get 96. Then subtract 5 from 96, to get 91.  

Juelle had $25,000 to invest. She invested part of that amount at 3% interest and part at 5% interest for one year. The amount of interest she earned for both investments was $1100. How much was invested at each rate?

Answers

Answer:

The first amount invested at 3%= x = $7500

The second amount Invested at 5% = y = $17500

Step-by-step explanation:

Juelle had $25,000 to invest.

She invested part of that amount at 3% interest and part at 5% interest for one year.

The amount of interest she earned for both investments was $1100.

The formula for Simple Interest =

Principal × Rate × Time

Let us represent

The first amount invested at 3%= x

The second amount Invested at 5% = y

x + y= $25,000....... Equation 1

x = 25,000 - y

3% × x + 5% × y = $1100...... Equation 2

0.03x + 0.05y = 1100...... Equation 2

We substitute 25000 - y for x in Equation 2

0.03x + 0.05y = 1100

0.03(25000 - y) + 0.05y = 1100

750 - 0.03y + 0.05y = 1100

Collect like terms

- 0.03y + 0.05y = 1100 - 750

0.02y = 350

y = 350/0.02

y = 17500

Solving for x

x = 25,000 - y

x = 25000 - 17500

x = 7500

Therefore:

The first amount invested at 3%= x = $7500

The second amount Invested at 5% = y = $17500

Solve -2lx-3l+5>3??????

Answers

Answer:

2<x<4

Step-by-step explanation:

brainliest??

What value is equivalent to

Answers

Answer:

-3

Step-by-step explanation:

dont know its right id(kkkkkkkkkkkkkkkkkkkkkkk

Solve the inequality:
2(x = 5) > 4

Answers

Answer:

x>-3 (if the = is meant to be +)

Step-by-step explanation:

Distribute the 2: 2x+10>4

Subtract 10 from both sides: 2x>-6

Divide both side by 2: x>-3

What is the value of h(2)? -2 -1 0
3

Answers

Answer:

The answer is 0

Step-by-step explanation:

Or c on edge.

Find the degree of the polynomial -m^6-10m^3

Answers

Answer:

We conclude that:

The degree of the polynomial is 6.

Step-by-step explanation:

Given

Given the polynomial

[tex]-m^6-10m^3[/tex]

To determine

The degree of the polynomial

In order to determine the degree of the polynomial, we need to check the term with the highest of the degree with non-zero coefficients. The degree of an individual term is basically the exponent of the term.

In our case,

The exponents of the terms of this polynomial are, in order, 6, and 3.

Thus, the highest degree (larger exponent) of the term is 6.

Therefore, we conclude that:

The degree of the polynomial is 6.

Consider the function represented by 9x + 3y = 12 with x as the independent variable. How can this function be
written using function notation?
O FU=-v+
Of(x) = - 3x + 4
o f(x) = -x +
Of = -3y + 4

Answers

Answer:

9x + 3y = 12

3y = -9x + 12

y = -3x + 4

f(x) = -3x + 4

Step-by-step explanation:

I hope it's help

stephanie and jenny each improved their yards by planting rose bushes and geraniums. they bought their supplies from the same store. stephanie spent $148 on 13 rose bushes and 1 geranium. jenny spent $169 on 9 rose bushes and 14 geraniums. find the cost of one rose bush and one geranium.

Answers

Answer:

The cost of one rose is $11., and the cost of one geranium is $5.

Step-by-step explanation:

The cost of one rose bush and one geranium can be determined by the use of simultaneous equation. Let the cost of a rose bush be represented by x, and the cost of one geranium by y.

So that,

13x + y = 148 .............. 1

9x + 14 y = 169 ............... 2

From eqaution 1,

y = 148 - 13x ............... 3

substitute the value of y in equation 2

9x + 14(148 - 13x) = 169

9x + 2072 - 182x = 169

2072 - 169 = 182x - 9x

1903 = 173x

x = [tex]\frac{1903}{173}[/tex]

  = 11

x = 11

substitute the value of x in equation 3

y = 148 - 13x

  = 148 - 13(11)

  = 148 - 143

y = 5

x = 11, y = 5

Thus, the cost of one rose is $11., and the cost of one geranium is $5.

Please help!!!! (Look at picture)

Answers

Answer:

x (19) is your answer okkkkkk

What is the reasoning for this statement?

Answers

Answer:

there is a black photo

Step-by-step explanation:

make sure to check properly

Write the slope-intercept form of the equation of each line given the slope and y-intercept.
Slope=-1/4, y-intercept =2

Answers

Answer:

y = -1/4x+2

Step-by-step explanation:

The SIF (slope intercept form) is pretty easy once you get it down. the slope is the interger before x, and the y-intercept is b. so, if you input each number into it's spot, it would become y = -1/4x + 2.

Plz help will award brainliest

Answers

Answer:

first one : example: 5•5=25•(-1)=-25

Answer:

A.

Step-by-step explanation:

+ * + = +

- * - = +

+ * - = -

- * + = -

A. + * + * - = + * - = -

B. - * + * - = - * - = +

C. + * - * - * + * + = - * - * + = + * + = +

D. - * - = -

Therefore, it's A.

Hope this helped! <3

find the value of X ​

Answers

Answer:

B X equals 3

Step-by-step explanation:

e3quals 3

Please help me ASAP

Answers

Answer:

A, y-intercept = (0,24)

Step-by-step explanation:

The y intercept is the one without a variable. You have to solve to find it in the other options.

Answer:

The first choice would be the best one.

Step-by-step explanation:

The y intercept occurs when x = 0 of the given polynomial.

All 3 answers will give you the correct answer. The y intercept is (0,24)

but the first one will be the quickest because all you need to do to find it is just eliminate any term with x in it.

2x^2 when x = 0 is 0

16x when x = 0 is 0.

That only leaves m(0) = 24 found just by looking at it.

The second one also works. 2 (0+4)^2 -  8 = 32 - 8 = 24

And the third one as well 2(6)(2) = 24

Solve for the unknown variable ​

Answers

Answer:

Step-by-step explanation:

ayo

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