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2 years ago

What is the volume of the cube shown? 24 in.

Mathematics

1 answer:

Natali5045456 [20]2 years ago

8 0

Answer:

11.39

Step-by-step explanation:

a^3

2 1/4 = 2.25^3

11.39

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(4x-4)+(3x-2)+(2x+6)=180

Ahat [919]

Answer:

x=20

Step-by-step explanation:

Let's solve your equation step-by-step.

4x−4+3x−2+2x+6=180

Step 1: Simplify both sides of the equation.

4x−4+3x−2+2x+6=180

4x+−4+3x+−2+2x+6=180

(4x+3x+2x)+(−4+−2+6)=180(Combine Like Terms)

9x=180

Step 2: Divide both sides by 9.

180

x=20

Answer:

x=20

6 0

3 years ago

Read 2 more answers

And the other question is, AC and A' C' are on parallel lines: true or false

pickupchik [31]

Answer:

Step-by-step explanation:

False

8 0

3 years ago

Find the multiplicative inverse of 6 + 2i

Marina CMI [18]

If you're using the app, try seeing this answer through your browser: brainly.com/question/2774989

________________

Find the multiplicative inverse of

$\mathsf{z=6+2i}$

________

The inverse multiplicative of $\mathsf{z=a+bi}$ is

$\mathsf{\dfrac{1}{z}}\\\\\\
=\mathsf{\dfrac{1}{a+bi}\qquad\quad(a\ne 0~~and~~b\ne 0)}\\\\\\
=\mathsf{\dfrac{1}{a+bi}\cdot \dfrac{a-bi}{a-bi}}\\\\\\
=\mathsf{\dfrac{1\cdot (a-bi)}{(a+bi)\cdot (a-bi)}}\\\\\\
=\mathsf{\dfrac{a-bi}{a^2-\,\diagup\hspace{-10}abi+\,\diagup\hspace{-10}abi-(bi)^2}}$

$=\mathsf{\dfrac{a-bi}{a^2-b^2\cdot i^2}}\\\\\\
=\mathsf{\dfrac{a-bi}{a^2-b^2\cdot (-1)}}\\\\\\
=\mathsf{\dfrac{a-bi}{a^2+b^2}}\\\\\\\\
\therefore~~\mathsf{\dfrac{1}{a+bi}=\dfrac{a}{a^2+b^2}-\dfrac{b}{a^2+b^2}\,i\qquad\quad\checkmark}$

________

For this question,

$\mathsf{z=6+2i}$

So,

$\mathsf{\dfrac{1}{z}}\\\\\\
=\mathsf{\dfrac{1}{6+2i}}\\\\\\
=\mathsf{\dfrac{6}{6^2+2^2}-\dfrac{2}{6^2+2^2}\,i}\\\\\\
=\mathsf{\dfrac{6}{36+4}-\dfrac{2}{36+4}\,i}\\\\\\
=\mathsf{\dfrac{6}{40}-\dfrac{2}{40}\,i}$

$\therefore~~\mathsf{\dfrac{1}{z}=\dfrac{3}{20}-\dfrac{1}{20}\,i}\quad\longleftarrow\quad\textsf{this is the answer.}$

I hope this helps. =)

6 0

3 years ago

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Slove for fg -9h= 10j to get g by itself

Afina-wow [57]

Simplifying fg + -9n = 10j Solving fg + -9n = 10j Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '9n' to each side of the equation. fg + -9n + 9n = 10j + 9n Combine like terms: -9n + 9n = 0 fg + 0 = 10j + 9n fg = 10j + 9n Divide each side by 'g'. f = 10g-1j + 9g-1n Simplifying f = 10g-1j + 9g-1n

7 0

3 years ago

Factor completely 3x – 15. - 03(x - 5) 03(x + 5) 3x(-15) Prime

kiruha [24]

Probably A the correct question good luck!

4 0

3 years ago