Simplify: (4 – 3i) - (-7 + 8)

Answers

Answer 1

Answer:

-3i - 12

Step-by-step explanation:

Rearrange so all the constant terms are on on one side, then perform the calculation of that side. Then simply add the coefficient and variable to the whole puzzle also adding the subtraction symbol that dose not change throughout the process. Done! Hope this helps. Also the 3 turns negative because of the minus it would be - 3 when re arranged which makes it equivalent to negative 3.


Related Questions

what is 7x+3(8x-7) I need it in standard form

Answers

Answer:

31x-21

Step-by-step explanation:

Distribute:7x+24x-21

Add like terms:31x-21

Answer:31x-21

the answer is 31x-21

80% of all castles had been preserved. if there were 135 castles in all, how many had not been preserved?

Answers

Answer:

27 castles had not been preserved.

Step-by-step explanation:

Divide 135 by 5 and you will get 27.

27 times 4 is 108.

135-108=27

what is the answer to this I don't understand

Answers

Answer: traversal

Step-by-step explanation: a traversal is a line that intersects 2 lines

Answer:

then wanswer is 5

Step-by-step explanation:

What is the distance between point R(−1, 7) and point T(−7, 7) ?

1 unit
6 units
7 units
8 units
pls help me i am trying to get a better grade in math

Answers

Answer:

6 units to the right

Step-by-step explanation:

i added it to a graph.

Answer: You can use the distance formula to find the distance between any two points ion the plane. In this case, look carefully at the coordinates:

R(-1, 7) and T(-7, 7), Notice they both have y-coordinate 7. That means they are both on the same horizontal line. To find their distance, just subtract -7 from -1 and take the absolute value.

|-1 - (-7)| = |-1 + 7| = |6| = 6

The distance is 6 units

Step-by-step explanation:

Write the equation of the line fully simplified slope intercept form.

Answers

Answer:

y=-2x+5

Step-by-step explanation:

Simplify: 3(r + 12r2) – 2(r + 8)

Answers

36r2+r-16 is the answer, btw the 2 besides the r in 36 is an exponent

Find slope.
х
у
-7
-1
0
-5
-1
4
3

Answers

Answer:

0.75

Step-by-step explanation:

I need help please!!!!!!!

Answers

Just a guess but 75 degrees?

Answer:

75°

Step-by-step explanation:

We can assume that the angle shown and an angle that measures 15° makes a complementary angle. A complementary angles is when two angles add up to be 90°. We can create an equation and simplify:

15 + x = 90

x = 75

Best of Luck!

What percentage of a 15-ft tree is a little 3-ft sapling?

Answers

20% is the 3-ft sapling

Answer:

20%

Step-by-step explanation:

A vanilla cake has a diameter of 8 inches. What is the radius?

Answers

Answer:

4

Step-by-step explanation:

d = 8 inches

r = 8/2 = 4 inches

Answer:

4 inches.

Explanation:

If the diameter is a circle, divide the diameter by two and you will have the answer of 4. This gives you the radius.

8 / 2 = 4

Hope this helps. Have a wonderful day.

Erwin began the month with a bank balance of $0. His bank statement shows one credit (+) and one debit (-). HIs balance at the end of the month was $15. What could be the amounts shown as Erwin's bank statement. Explain how you got your answer.

Answers

Answer:

Credit ⇒ 45

Debit ⇒ $30

Step-by-step explanation:

Credit = $45

Debit = $30

When an account balance increases it means that it has been credited and when it decreases, it has been debited.

The beginning balance here is $0 and the closing balance is $15.

There were 2 transactions, one credit and one debit.

For the closing balance to be $15, the Credit amount must have been $15 more than the Debit amount.

Find the length of MN

Answers

Answer:

Is there supposed to be a screenshot?

then again this is your first question .....................

Select the correct answer.
You're given side AB with a length of 6 centimeters and side BC with a length of 5 centimeters. The measure of angle A is 30%. How many
triangles can you construct using these measurements?
А.0
В.1
C.2
D. infinitely many

Answers

Answer:

D. infinitely many

Step-by-step explanation:

I assume that percentage sign is a degree symbol.

If there are only two sides given, there can be an infinite amount of triangles

Find the measure of the angle indicated

Answers

Answer:

Where's the angle?

Step-by-step explanation:

Answer:

there is no pic...

Step-by-step explanation:

PLZZZZZZZZZZZZ HELP ME WITH THIS I WILL MARK YOU

Answers

Answer:

First question:y=-1/2x+3

Second question: y=1x

The length of a rectangle is units greater than twice its width. If its width is w, which expression gives the perimeter of the rectangle in terms of w?

Answers

Answer: w+w+w

Step-by-step explanation: that is how i would express it

P = length + breadth + length + breadth.

Put your numbers into this equation and you'll get your answer.

Hey so can somebody help me? Please dont guest on this, im on the test and i dont want to fail, so please actually try thanks (you will get brainliest if you explain where the arrow goes and the answer of the problem) ( but the main point is to explain where the arrow goes)

Answers

Answer:

The answer would be -2 1/6

Step-by-step explanation:

The arrow goes to the left side because it is negative. -1/3 would be equal to -2/6. -5/6 + -1/6 + -1/6 = -1 1/6. Add the 1 and you get -2 1/6!

Hope this helped ^^

A manufacturer produces 1 ton of baseballs per day and packs them in cartons of 24 baseballs each. If all of the balls are the minimum allowable weight, how many cartons of balls does the company produce each day?

Answers

Given :

Mass of baseball produced per day, m = 1 ton.

1 carton of baseball contain 24 baseballs.

To Find :

If all of the balls are the minimum allowable weight, how many cartons of balls does the company produce each day.

Solution :

Minimum allowable weight of a baseball is 5 ounces.

We know, 1 ton = 2000 pounds and 1 pounds = 16 ounces.

So, 1 ton = 32000 ounces .

Number of baseballs produced :

n = 32000/5

n = 6400

Number of carton produce each day, N = 6400/24 = 266.67

Since, carters cannot be in decimal.

Therefore, carton produce in each day is 266 .

Find the unit rate for 3/4 miles 1/2 hour

Answers

Answer:

Step-by-step explanation:1 2 mile in each 1 8 hour is a rate of 4 miles per hour.    1 5 mile in each 1 10 hour is a rate of 2 miles per hour.  is correct ,i think??????

The unit rate is 3/2, which means the person is traveling at a rate of 3/2 miles per hour.

How to determine the unit rate for 3/4 miles 1/2 hour

To find the unit rate, divide the distance traveled (in this case, 3/4 miles) by the time taken (in this case, 1/2 hour).

(3/4 miles) ÷ (1/2 hour)

To divide fractions, multiply the numerator of the first fraction by the reciprocal of the second fraction:

(3/4 miles) × (2/1 hour)

Multiplying the numerators and denominators, we get:

(3 × 2) / (4 × 1) = 6/4

Next, simplify the fraction:

6/4 simplifies to 3/2

Therefore, the unit rate is 3/2, which means the person is traveling at a rate of 3/2 miles per hour.

Learn more about distance at https://brainly.com/question/26550516

#SPJ6

why is 2 x 3/4 less than 2

Answers

because when you multiply the 3/4 twice it gives you 1 1/2 which is less than 2

2x + y + 3z = 19
3x + 2y + 3z = 19
X + 4y + 2z = 9
What is the value of x?

Answers

Answer:

4.5

2.5

4

Step-by-step explanation:

(someone passed this to me) 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

X = 1 (Just adding characters)

Please find the derivative of [tex]\displaystyle \frac{e^{\frac{3}{x}}}{x^2}[/tex]. Show all work necessary - thanks!

Answers

Hello! :)

[tex]\large\boxed{\frac{-e^{\frac{3}{x}} (3 + 2x )}{x^{4}}}[/tex]

Find the derivative using the quotient rule:

[tex]\frac{f(x)}{g(x)} = \frac{g(x) * f'(x) - f(x) * g'(x)}{(g(x))^{2}}[/tex]

In this instance:

[tex]f(x) = e^{\frac{3}{x} }\\\\g(x) = x^{2}[/tex]

Use the following properties to find the derivative of f(x) and g(x):

[tex]e^{u} = u' * e^{u}\\\\x^{n} = nx^{n-1}[/tex]

Use the quotient rule:

[tex]\frac{x^{2} * (e^{\frac{3}{x}} * (-3x^{-2})) - e^{\frac{3}{x}} * 2x }{(x^{2} )^{2}}[/tex]

Simplify the numerator:

[tex]\frac{(e^{\frac{3}{x}} * (-3)) - e^{\frac{3}{x}} * 2x }{(x^{2} )^{2}}[/tex]

Factor out [tex]e^{\frac{3}{x}}[/tex]

[tex]\frac{e^{\frac{3}{x}} (-3 - 2x )}{x^{4}}[/tex]

Factor out -1 from the numerator:

[tex]\frac{-e^{\frac{3}{x}} (3 + 2x )}{x^{4}}[/tex]

And we're done! Thanks for posting the question to my 1000th answer!

Answer:

[tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}}}{x^4} - \frac{2e^{\frac{3}{x}}}{x^3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Splitting Fractions

Algebra I

Terms/CoefficientsFactoringExponential Rule [Multiplying]: [tex]\displaystyle b^m \cdot b^n = b^{m + n}[/tex]

Calculus

Derivatives

Derivative Notation

Basic Power Rule:

f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹

Derivative Rule:    [tex]\displaystyle \frac{d}{dx} [e^u]=e^u \cdot u'[/tex]

Quotient Rule:      [tex]\displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{e^{\frac{3}{x}}}{x^2}\\f(x) = e^{\frac{3}{x}}\\g(x) = x^2[/tex]

Step 2: Differentiate

Quotient Rule:                                                                                                [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{\frac{d}{dx}[e^{\frac{3}{x}}] \cdot x^2 - \frac{d}{dx}[x^2] \cdot e^{\frac{3}{x}}}{(x^2)^2}[/tex]Derivative Rule:                                                                                              [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{e^{\frac{3}{x}} \cdot \frac{-3}{x^2} \cdot x^2 - \frac{d}{dx}[x^2] \cdot e^{\frac{3}{x}}}{(x^2)^2}[/tex][Simplify] Multiply:                                                                                           [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - \frac{d}{dx}[x^2] \cdot e^{\frac{3}{x}}}{(x^2)^2}[/tex]Basic Power Rule:                                                                                          [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - 2x^{2-1} \cdot e^{\frac{3}{x}}}{(x^2)^2}[/tex][Simplify] Subtract Exponents:                                                                       [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - 2x \cdot e^{\frac{3}{x}}}{(x^2)^2}[/tex][Simplify] Multiply:                                                                                           [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - 2xe^{\frac{3}{x}}}{(x^2)^2}[/tex][Simplify] Exponent Rule:                                                                               [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - 2xe^{\frac{3}{x}}}{x^{2 + 2}}[/tex][Simplify] Add Exponents:                                                                              [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}} - 2xe^{\frac{3}{x}}}{x^4}[/tex][Simplify] Fraction Split:                                                                                  [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}}}{x^4} - \frac{2xe^{\frac{3}{x}}}{x^4}[/tex][Simplify - 2nd Fraction] Cancel Like Terms:                                                [tex]\displaystyle \frac{d}{dx}[\frac{e^{\frac{3}{x}}}{x^2}] = \frac{-3e^{\frac{3}{x}}}{x^4} - \frac{2e^{\frac{3}{x}}}{x^3}[/tex]

And we have our final answer!

10=h/2+8 solve, its for algebra 1

Answers

Answer:

Subtract 8 from both sides which lead it to 2=h/2, then multiply two for each side then it turns to 4=h

What is the domain of the radical function shown on the graph? GRAPH IS IN THE PIC BELOW. A.
all real numbers
B.
{x | x ≤ 0}
C.
{x | -10 < x < 10}
D.
{x | x ≥ -10}

Answers

Given:

The graph of a radical function.

To find:

The domain of the given radical function.

Solution:

We know that, domain is the set of input values or we can say domain is the set of x-values for which the function is defined.

From the given graph it is clear that, for each value of x there is a y-value. It means the function is defined for all real values of x. So,

Domain = Set of all real numbers.

Therefore, the correct option is A.

I will give brainleist! Please help on all it’s my homework i don’t know how to do

Answers

Answer:

17) 3   18) 3

Step-by-step explanation:

Answer:

17. C

18. C

Step-by-step explanation:

The greater the negative number, the less the number values. -10 is smaller than -8 because -10 is farther away from the number line to the left.

Go in terms of the tenths place. If its smaller than the number will be less than the bigger numbers. 0.227 is bigger than 0.18 because it has a 2 in the tenths place.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Choose the graph of this equation y 2.5

Answers

Answer:

A

Step-by-step explanation:

when you look at the y axis 2.5 is a point

Write the equation of the line that passes through the point ( − 8 , 2 ) and is perpendicular to the line y = 8

Answers

Answer:

x=-8

Step-by-step explanation:

y=8 is a horizontal line crossing the y-axis at 8

A line perpendicular to this would be a vertical line crossing the x-axis at -8

answer choices are 36, 9, 6, 12

Answers

Answer:

12

Step-by-step explanation:

Interesting I think we should ask the question why lemonade to truly understand the problem

Plsss help ASAP I DONT have time..

Answers

Answer:

3

Step-by-step explanation:

there is a 3 times difference in the first image and its the same just smaller

EASY QUESTION!!!
Write the slope-intercept form of the equation of the line through the point (3, -4) with the slope of -6. *
y = -6x - 4
y = -6x + 3
y = -6x +14
y = -3x + 4

Answers

it should be y = -6x - 4
m (which is the slope is -6)
b (which is the y-intercept is -4)
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