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3 years ago

Choose a system and make a case for why you would

Mathematics

1 answer:

Elenna [48]3 years ago

3 0

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other.

Step-by-step explanation:

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6000.0 divided by 24, please show your work, I really need help

Juliette [100K]

Answer: 250

Step-by-step explanation:

$\displaystyle\\6000.0:24=\\\\\frac{6000}{24}=\\\\\frac{6(1000)}{6(4)}=\\\\\frac{1000}{4}=\\\frac{ 4(250)}{4}=\\\\250$

7 0

1 year ago

Read 2 more answers

Btw the options for 5 are A-105.7 B-10.57 C-1.057 D-0.1057

marin [14]

4. 19
5. A. 105.7

By the way, if you're struggling with math problems I recommend you khan academy

Hope this helps :)

8 0

3 years ago

Read 2 more answers

PLEASE HELP ASAP!!! 2. Calculate the volume of this solid using the formula V=Bh (all angles are 90 degrees).

Softa [21]

Answer:

V = 27/64 cubic inches

Step-by-step explanation:

Given the information in the photo:

The height: 3/4 in
The length : 3/4 in
The width : 3/4 in

The volume of this solid using the formula

V=Bh where:

h is the height
B is the area of the base = The length * The width

=> The volume of this solid is:

V = 3/4 * 3/4 * 3/4

<=> V = 27/64 cubic inches

Hope it will find you well

7 0

3 years ago

What complex number is represented by the polar coordinates (4, -pi/4)

nexus9112 [7]

Answer:

$\displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}$

Step-by-step explanation:

A complex number is defined as z = a + bi. Since the complex number also represents right triangle whenever forms a vector at (a,b). Hence, a = rcosθ and b = rsinθ where r is radius (sometimes is written as <em>|z|).</em>

Substitute a = rcosθ and b = rsinθ in which the equation be z = rcosθ + irsinθ.

Factor r-term and we finally have z = r(cosθ + isinθ). How fortunately, the polar coordinate is defined as (r, θ) coordinate and therefore we can say that r = 4 and θ = -π/4. Substitute the values in the equation.

$\displaystyle \large{z=4[\cos (-\frac{\pi}{4}) + i\sin (-\frac{\pi}{4})]}$

Evaluate the values. Keep in mind that both cos(-π/4) is cos(-45°) which is √2/2 and sin(-π/4) is sin(-45°) which is -√2/2 as accorded to unit circle.

$\displaystyle \large{z=4\left(\frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}i \right)}\\\\\displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}$

Hence, the complex number that has polar coordinate of (4,-45°) is $\displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}$

3 0

2 years ago

Consider the equation, where p is a real number coefficient.

vazorg [7]

This should help here you go

5 0

3 years ago