help? I can’t figure out this problem

Help? I Cant Figure Out This Problem

Answers

Answer 1

Answer:

  B

Step-by-step explanation:

Euler's formula tells you that ...

  cos(θ) +sin(θ)·i ≡ e^(i·θ)

__

So, for θ = 90° (= π/2 radians), this is ...

  cos(π/2) +sin(π/2)·i = 0 +i = i = e^(i·π/2) . . . . . matches choice B


Related Questions

PLS HELP ASAP DUE TODAY

Answers

I think it
1. 135° × π/180 = 2.356rad
Sorry if I get it wrong

rudy has punch cards for his favorite tea house abs his favorite coffee shop. he currently has 1 punch on the tea punch card and 2 punches on the coffee punch card. given his regular routine he consistently earns 7 new punch cards per week on the tea punch card and 6 on the coffee punch card. before too long rudy will have the same number of punches on each card. how long will it take? how many punches will rudy have on each card?

Answers

The time it would take for Rudy to have the same number of each punch card is 1 week.

The number of punches on each card Rudy would have is 8 punches.

How long will it take to have the same number of punches on each card?

The equation that represents the number of punches on the tea punch card is: 1 + 7t

The equation that represents the number of punches on the coffee punch card is: 2 + 6t

Where t represents the number of weeks

When both cards would have the same amount of punches, the two above equations would be equal:

1 + 7t = 2 + 6t

To find the value of t, take the following steps:

Combine similar terms

7t - 6t = 2  - 1

t = 1 week

What will be the number of punches on each card?

Number of punches on each card = 1 + 7(1) = 8 punches

To learn more about when the two different variables would have the same amount, please check: https://brainly.com/question/25711114

The endpoints of AB are A(4,3) and B(1,1). What are the coordinates of A’’ after the image has been translated (x,y)—> (x-5,y-1) and rotated 180 degrees about the origin?

Answers

Answer:

  A"(1, -2)

Step-by-step explanation:

In addition to the translation transformation given, you are asked to transform the figure further by rotating it 180° about the origin. The translation for that is ...

  (x, y) ⇒ (-x, -y)

Then the composition of the two transformations is ...

  (x, y) ⇒ (-(x -5), -(y -1)) = (-x +5, -y +1)

__

Applied to the given point(s), we have ...

  (x, y) ⇒ (-x +5, -y +1)

  A(4, 3) ⇒ (-4 +5, -3 +1) = A"(1, -2)

  B(1, 1) ⇒ (-1 +5, -1 +1) = B"(4, 0)

The coordinates of A" after translation and rotation are (1, -2).

please answer I need help with my I-ready

Answers

The answer is in the image

PLEASE PLESE HELP ME WITH THIS!!!!

Answers

It's C

The new center is 5 units away from the original, hence we added 5 to the x-value.

If you notice the sides of the new triangle are twice the size of the original one, meaning that it was dilated by a scale factor of 2.

Joey makes an hourly wage of $12. For hours over 40, he earns 1.5 times his regular pay. Last week joe worked 46 hours. Fill out the table below.

Answers

Answer:

Step-by-step explanation:

Need help with this

Answers

If f is a one-to-one continuous function defined on an interval, then its inverse f−1 is also one-to-one and continuous.

solve:
-7=12x-16


If you help me with this I will be your best friend!!!

Answers

Answer:

x = 0.75

Step-by-step explanation:

first make the x term the subject

-7 = 12x - 16

-7 + 16 = 12x

add the like terms

9 = 12x

solve for x

9÷ 12 = 12x ÷ 12

0.75 = x

A line passes through the points (1, 4) and (-4, -2)

2). Which of the following is an equation of the line?

Answers

Answer:

slope intercept

y=6/5x+14/5

point slope=

y-4=6/5 (x-1)

therefore y-4/x-1=6/5 is the answer

Evaluate a=81 and b=3.
a/9 -b=

Answers

Answer:

6

Step-by-step explanation:

once you replace the letters with numbers you get, 81/9-3 and 81/9 is equal to 9 and 9-3=6

what fraction is equivalnt to 3/4

Answers

Answer:

6/8

Step-by-step explanation:

Multiply both the denominator and numerator by 2.

PLEASE HELP IM STUCK ON THIS!!
Draw the dilation image A’B’C’D’ of the trapezoid ABCD with the center of the dilation at the origin and the scale factor -2. include the original trapezoid ABCD in your drawing.

Answers

Answer:

Im stuck on this one as well lol

Step-by-step explanation:

Good luck

You find out the answer for this one? I'm stuck on it

Answer ASAP and whoever gets it right can have brainliest

Answers

Answer:

65

-------------------------------------------------------------------------------------------------------------

Solve

Use the A.S(or add-then-subtract) method when doing 2-value and first value unknown subtraction problems;

Add the result and the given numberSubtract the known value by the result of the given value plus the result.

O parte din traseul Bușteni-Babele a fost parcurs de mai multi turiști astfel: in prima ora 1/3 din distanta, a doua ora 1/4 din distanta. Dupa cele doua ore le-au mai ramas de parcurs 5km. Care este distanta parcursa de turiști?

Answers

Answer:

7km

Step-by-step explanation:

[tex] \frac{1}{3} x + \frac{1}{4} x = \frac{4}{12} x + \frac{3}{12} x = \frac{7}{12} x \\ \\ \\ x - \frac{7}{12} x = \frac{12}{12} x - \frac{7}{12} x = \frac{5}{12} x \\ \\ \frac{5}{12} x = 5 - - - > x = 12[/tex]

[tex]12 \times \frac{7}{12} = 7[/tex]

what is 3/4 of 1/3
Reduce your answer to simplest form.

Answers

Answer:

1/4.

Step-by-step explanation:

3/4 of 1/3

= 1/3 * 3/4

= 3/12

= 1/4

1/4 is the answer good luck

Find the slope of the line if it exists

Answers

Answer:

m = 7/6

Step-by-step explanation:

Find coordinates of two points:

(-2,3)

(-8,-4)

Slope formula =

y1 - y2 / x1 - x2

So...

-4-3 / -8 -- 2

-7 / -6

7/6

remember brainliest and have a great day!

18/2x-6
step by step please ​

Answers

Answer:

[tex]\frac{9}{x-3}[/tex]

Convert the problem into split up expressions.

[tex]\frac{18}{2}(x - 6)[/tex]

Take both 6 and 18's most common factor here, 2, and divide by 2 to simplify.

[tex]\frac{18}{2} = 9\\\\\frac{6}{2} = 3[/tex]

Cancel.

18 becomes 9

6 becomes 3

The equation turns into:

[tex]\frac{9}{x - 3}[/tex]

note that because we, "canceled" 2, that also means it does not appear in the simplified form since it was a factor.

Solve the equation. Write your answer as an integer or simplified fraction.
8n−7 n−2 =18
n=______

Answers

Corrected question :

Solve the equation. Write your answer as an integer or simplified fraction.

8n - 7 (n - 2) = 18

Required Solution :

The given equation,

8n - 7 (n - 2) = 18

Multiplying -7 into (n - 2),

>> 8n - 7 × (n - 2) = 18

>> 8n - 7n + 14 = 18

On substracting 7n from 8n we gets,

>> n + 14 = 18

★ Now transposing 14 which is in L.H.S. into R.H.S. (Remember that sign would be . So 14 would be -14),

>> n = 18 - 14

>> n = 14

Therefore,

Value of n is 14.

Learn more from brainly.com :

https://brainly.com/question/27432186

https://brainly.com/question/22661149

https://brainly.com/question/26727230

The reference angle for (5pi)/4 is pi/4 , which has a terminal point of (sqrt2/2), (sqrt2/2). What is the terminal point of 5pi/4?

Answers

Using the unit circle, it is found that the terminal point of the angle 5pi/4 is given by:

A. [tex]\left(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2}\right)[/tex]

What is the unit circle?

For an angle [tex]\theta[/tex] the unit circle is a circle with radius 1 containing the following set of points: [tex](\cos{\theta}, \sin{\theta})[/tex].

The angle 5pi/4 is in the third quadrant, as it is greater than pi and less than 1.5pi, in which both the sine and the cosine are negative. Hence, considering the reference angle, we have that:

[tex](\cos{(\left(\frac{5\pi}{4}\right)}, \sin{(\left(\frac{5\pi}{4}\right)}) = (-\cos{(\left(\frac{\pi}{4}\right)}, -\sin{(\left(\frac{\pi}{4}\right)}) = \left(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2}\right)[/tex]

Hence option A is correct.

More can be learned about the unit circle at https://brainly.com/question/16852127

#SPJ1

What is the estimate for 54×31

Answers

Answer:

50 * 30 = 1500

Answer:

Actual Product =54*31= 1,674

Estimated Product = 50*30=1,500

Step-by-step explanation:

NO LINKS!! Please help me with this problem​

Answers

#1

[tex]\\ \rm\Rrightarrow \dfrac{WX}{GH}=\dfrac{UY}{JI}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{8}{14}=\dfrac{UY}{28}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{8(28)}{14}=UY[/tex]

[tex]\\ \rm\Rrightarrow UY=8(2)=16[/tex]

#2

[tex]\\ \rm\Rrightarrow \dfrac{UV}{UY}=\dfrac{FJ}{JI}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{UV}{16}=\dfrac{21}{28}[/tex]

[tex]\\ \rm\Rrightarrow UV=\dfrac{3}{4}\times 16[/tex]

[tex]\\ \rm\Rrightarrow UV=3(4)=12[/tex]

#3

[tex]\\ \rm\Rrightarrow \dfrac{WX}{XY}=\dfrac{GH}{HI}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{8}{XY}=\dfrac{14}{35}=\dfrac{2}{5}[/tex]

[tex]\\ \rm\Rrightarrow 2XY=40[/tex]

[tex]\\ \rm\Rrightarrow XY=20[/tex]

Answer:

UY = 16

UV = 12

XY = 20

Step-by-step explanation:

If UVWXY ~ JFGHI

then:

UV~JF

VW~FG

WX~GH

XY~HI

UY~JI

The only pair of sides that both have measures is WX and GH:

WX = 8

GH = 14

⇒ GH/WX = 14/8 = 1.75

Therefore, JFGHI is and enlargement of UVWXY by scale factor 1.75

As IJ = 28

⇒ UY = 28 ÷ 1.75 = 16

As JF = 21

⇒ UV = 21 ÷ 1.75 = 12

As HI = 35

⇒ XY = 35 ÷ 1.75 = 20

What is the equation how would you write that out?

Answers

Which equation are you talking about
I don’t see the pic !

One root of the equation "[tex]x^{2} -m^{2}x -m + 1 = 0[/tex]" (with unknown x) is the number "x1 = 1". Determine the other root "x2".

Answers

Answer:

0; 3.

Step-by-step explanation:

1) if to substitute x=1 into the given equation, it is possible to calculate the value of 'm':

1-m²-m+1=0; ⇔ m²+m-2=0; ⇒ m₁=-2; m₂=1;

2) if m=-2 and m=1, then the initial equation is:

x²-4x+3=0 or x²-x=0;

3) according to the item 3), the 2d root is:

x₂=3 or x₂=0.

The answer is 0; 3. Hope this helps

What’s the inverse of the function?
f(x)=3^x+1

Answers

The inverse of f(x)=3x+1 is f(x)−1=13x−13 .

[tex]y= f(x) = 3^x+1\\\\\text{Replace x with y and solve for y}\\ \\~~~~~~x=3^y+1\\\\\implies 3^y = x-1\\ \\\implies \ln(3^y) = \ln(x-1)\\\\\implies y \ln 3= \ln(x-1)\\\\\implies y= \dfrac{\ln(x-1)}{\ln 3}\\\\\implies f^{-1}(x) = \dfrac{\ln(x-1)}{\ln 3}[/tex]

Let x represent the paper 1 score (out of 40) and y
represent the predicted paper 2 score (out of 100).
Which correctly states the equation for the least-
squares regression line and the interpretation of its
slope?

Answers

Answer:

A

Step-by-step explanation:

xy=10
4x+2y=30
I need help asap

Answers

Answer:

x = 25/3; y = -5/3

Step-by-step explanation:

You did well so far by multiplying both sides of the first equation by 2.

Now notice that you have -2y in the new first equation and 2y in the second equation. -2y and 2y add to 0.

Now add the equations to eliminate y.

      2x - 2y = 20

(+)   4x + 2y = 30

-------------------------

      6x         = 50

6x/6 = 50/6

x = 50/6 = 25/3

2x - 2y = 20

2(25/3) - 2y = 20

50/3 - 2y = 60/3

-2y = 60/3 - 50/3

-2y = 10/3

-2y/2 = (10/3)/(-2)

y = -5/3

Solution: x = 25/3; y = -5/3

Mrs. Reynolds has $153. She buys a bicycle for $105.
Then, she finds $20 at the bottom of her purse.
How much money does she have now? Use the bar diagrams to help you.

Step 1:

Step 1: a bar diagram shows 105 and m, the money left after buying a bike. Together 105 and m is equal to 153.



Step 2:

Step 2: a bar diagram shows that 20 and m is equal to s, the money now.

Enter your answer in the box.
Mrs. Reynolds has $
now.

Answers

Answer:

$68

Step-by-step explanation:

Mrs. reynolds now has 68 dollars. 153-105=48. 48+20=68

Answer:

She has $68 dollars remaining

Step-by-step explanation:

(no bar diagram needed, lol jk.)

anyways she started off with 153, right?

She then buys a bike worth $105; thats -$105  which leaves here with $48 dollars

Then ooo its her lucky day, she finds a $20 dollar bill, you add it to $48 (+$20) , now she has $68 dollars in total.

<3

Solve the following equation algebraically:

x^2 = 192

A. 13.86

B. -13.86, 13.86

C. -14.36, 14.36

Emergency!!

Answers

i think the answer is A. 13.86.
a (13.86) is the correct answer

Find the area of the parallelogram.

A. 35 cm2

B. 42 cm2

C. 12 cm2

D. 24 cm2

Answers

Answer:

35 cm²

Step-by-step explanation:

This is because the formula of the area of a parallelogram is;

area = (base) x (height)

since the base is 5, and the height is 7;

area = (5) x (7)

area = 35

Hope this helps!

Answer:

[tex]\boxed{\sf{A. \quad 35cm^2}}[/tex]

Step-by-step explanation:

The formula of area of the parallelogram is used to find the area of the parallelogram.

Area of the parallelogram formula:

[tex]\Longrightarrow: \sf{A=B*H}[/tex]

B stands for "base".

H stands for "height".

The base is 5.The height is 7.

Multiply.

Solve.

5*7=35

= 35cm²

Therefore, the area of the parallelogram is 35cm², which is our answer.

I hope this helps! Let me know if you have any questions.

HELP PLEASEE ITS EASY!!!!!!!!!

Answers

Answer:

4 inches

Step-by-step explanation:

The scale is 1:3 based on that info, x:12

There is a 4-factor increase, meaning x=4

The Zoo is 16 Inches from the school

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