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2 years ago

Directions: Select all correct answers.

Mathematics

1 answer:

Akimi4 [234]2 years ago

6 0

Answer:

Step-by-step explanation:

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The local newspaper has letters to the editor from 70 people. If this number represents 4% of all the newspaper readers, how man

vredina [299]

Answer:

The newspaper has 1750 readers.

Step-by-step explanation:

Divide 70 by 2: 35.

Then, multiply 35 by 50 which is equal to 1750.

6 0

3 years ago

Let cos A = <img src="https://tex.z-dn.net/?f=1%2F%5Csqrt%7B10%7D" id="TexFormula1" title="1/\sqrt{10}" alt="1/\sqrt{10}" align=

Rzqust [24]

Umm i’m sorry but what is the question here .

This isn’t english

3 0

2 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

-7k + 3 = -11 Solve for k.

a_sh-v [17]

K = 2
-7k + 3 = -11
       -3 = -3
-----------------
    -7k = -14
    -7 / -14
= 2

4 0

3 years ago

Read 2 more answers

HELP PLZ ASAP HELP

Basile [38]

Answer:

4.5 Cubic Feet

Step-by-step explanation:

1. You want to find the volume of the box. (Length x width x height)

2.5 x 2 x 1.5 = 7.5

2. The present has a volume of 3 cubic feet, so you would subtract that from the volume of the box.

7.5 - 3 = 4.5

3. The volume of the empty space in the box is 4.5 cubic feet.

Hope this helped! :)

8 0

3 years ago