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4 years ago

1. If = 1, = −2 = −1 then find the value of the following

Mathematics

1 answer:

Mariana [72]4 years ago

5 0

Answer:

hope its helpful......

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What is 2 15/16 Ian’s a decimal?

Arada [10]

Answer:

2.9375

Step-by-step explanation:

15 divided by 16 equals .9375 so 2 15/16 is 2.9375

5 0

3 years ago

A cube with an edge length s has a volume of 8 cubic units. What is the length of s?

GrogVix [38]

Answer:

Perimeter on one face =4× side =8

Hence the side of the cube is 2 units.

So the volume of the cube is (side)^3=(2)^3=8 cubic units

Step-by-step explanation:

3 0

3 years ago

Given z1 = -3

trasher [3.6K]

Answer:

See explanation

Step-by-step explanation:

The given complex number are:

$z_1=-3\sqrt{3}+3i$

and

$z_2=6\cos 150\degree+6i\sin 150\degree$

When we rewrite $z_1=-3\sqrt{3}+3i$ in complex form, we obtain;

$z_1=r(\cos \theta+i\sin \theta)$

where

$r=\sqrt{(-3\sqrt{3})^2+3^2 }=\sqrt{36}=6$

and

$\theta=tan^{-1}(\frac{y}{x})$

$\implies \theta=tan^{-1}(\frac{-3\sqrt{3}}{3})=150\degree$

Hence,

$z_1=6(\cos 150\degree+i\sin 150\degree)$

$z_1=6\cos 150\degree+6i\sin 150\degree$

Hence

$z_1=z_2$

8 0

3 years ago

What is (2x−12)+(12xy−10)(2x-12)+(12xy-10) for x=8x=8 and y=2

Lelechka [254]

<span>(2*8−12)+(12*8*2−10)(2*8 -12)+(12*8*2 -10) = 914

ANSWER = 914

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7 0

3 years ago

Are 2(x + 3) + 2x and 4x + 3 equal

muminat

Answer:

No they are not

Step-by-step explanation:

6 0

4 years ago

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