All categories

3 years ago

PLZZZZZZZZZZZZZZZZZZZZZZZ HELP ME

Mathematics

1 answer:

slava [35]3 years ago

3 0

Answer:

the answer is 2119

Step-by-step explanation:

1+1=1

You might be interested in

Of 300 dentists surveyed, 60% said they recommend flossing twice a day. How many dentists recommend flossing twice a day?

andrew11 [14]

Answer:

Step-by-step explanation:

Do 300 x 0.6=180

3 0

3 years ago

Read 2 more answers

Hunter receives $20 per week, plus an additional $10 for each lawn he mows. Which graph represents Hunter's earnings?

Anna71 [15]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Use the polar representation to write the following in the form a + bi (a) (-1+ i)^7 (b) (1+v3i)^10

ira [324]

Answer with Step-by-step explanation:

For any complex number x+iy the polar form is represented as

$z=re^{i\theta }$

where

$r^{2}=x^2+y^2\\\\tan(\theta )=\frac{y}{x}$

Part a) x+iy = -1+i

Thus $r=\sqrt{-1^2+1^2}=\sqrt{2}\\\\ \theta _{1}=tan^{-1}(\frac{-1}{1})=\frac{-\pi }{4}$

Thus using De-Morvier's theorem

$(-1+i)^7=(\sqrt{2}e^{i\frac{-\pi }{4}})^7\\\\\therefore (-1+i)^7=2^{7/2}\cdot e^{\frac{i-\pi }{28}}$

Part 2) x+iy = 1+3i

Thus $r=\sqrt{1^2+3^2}=\sqrt{10}\\\\ \theta _{1}=tan^{-1}(\frac{3}{1})=1.25$

Thus using De-Morvier's theorem

$(1+3i)^{10}=(\sqrt{10}e^{1.25i})^{10}\\\\\therefore (1+3i)^{10}=10^{5}\cdot e^{12.5i}$

3 0

3 years ago

In circle K, what is the value of x? x = 30° x = 25° x = 20° x = 15º A triangle inscribed in a circle having one side as diamete

mrs_skeptik [129]

Answer:

x = 15°

Step-by-step explanation:

The segment is a diameter, So let us assume the part in which there lies the triangle as a semicircle.

=> A triangle inscribed in a semi-circle will always have one of its angle equal to 90

=> So the angle (not 75 and x) is 90 degrees.

=> To find the value of x, we'll subtract rest of the angles from 180 degrees (because the interior angles of a triangle add up to 180°)

So,

=> x = 180-90-75

=> x = 15°

8 0

3 years ago

Please help don’t get it

myrzilka [38]

Answer:

u = 94

Step-by-step explanation:

First multiply both sides of the equation by 2.

$\frac{u-82}{2}$ ·2 = 6·2

u - 82 = 12

Then add 82 to both sides of the equation

u - 82 + 82 = 12 + 82

This gives you your answer.

Hope this helps!

-MoCKEry

5 0

3 years ago