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3 years ago

So how are linear equations done ? I have no idea how to understand or doing them. I need help please.

Mathematics

1 answer:

adell [148]3 years ago

4 0

Answer:

its an equation between two variables that gives a straight line when plotted on a graph.

Step-by-s

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When Ricardo was 9 years old, he was 56 inches tall. By age 12, he had increased his

Schach [20]

Answer:

He is 62.72 inches tall now

Step-by-step explanation:

the twelve over 100 is the percentage, he increased by 12 percent. and the x over 56 is the new value (x) over the old value. We get 6.72 so we add that to 56 to get 62.72.

6 0

3 years ago

Find the prime factorization of 72.

barxatty [35]

Answer:

2^3×3^2

and yh

Step-by-step explanation:

2×2×2×3×3

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3 years ago

Read 2 more answers

X-5 over (3x+9)(x-4)

STatiana [176]

Answer:

Simplified equation: $\frac{x-5}{3(x+3) (x-4)}$

<em>Brainliest Pls</em>

6 0

3 years ago

Convert the complex number z = 4 - 10i from rectangular form to polar form.

mrs_skeptik [129]

ANSWER

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

EXPLANATION

The polar form of a complex number ,

$z = x + yi$

is given by:

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

where

$r = \sqrt{ {x}^{2} + {y}^{2} }$

The given complex number is:

$z = 4 - 10i$

$r = \sqrt{ {4}^{2} + {( - 10)}^{2} }$

$r = \sqrt{16 + 100}$

$r = \sqrt{116} = 2 \sqrt{29}$

And

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

$\theta= \tan^{ - 1}(\frac{ - 10}{4} )$

$\theta= 292 \degree$

Hence the polar form is :

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

6 0

3 years ago

An advertising company conducted a survey to determine how often people of different ages shopped online. The table shows the da

ohaa [14]

Answer:

Teens who use online shopping sometimes = 6

total number of people who use online shopping sometimes = 20

total percentage of teens using online shopping sometimes = 6/20*100 => 30%

hope it helps

have a nice day

4 0

3 years ago

So how are linear equations done ? I have no idea how to understand or doing them. I need help please. ​

So how are linear equations done ? I have no idea how to understand or doing them. I need help please.