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3 years ago

Can someone help me with the equation in the picture below.

Mathematics

1 answer:

zlopas [31]3 years ago

4 0

Answer:

x=3

Step-by-step explanation:

First, you would distribute the 4 to the (x-3), giving you 2x-6+4x-12

From there combine like terms, 2x+4x=6x, -6+-12=-18

6x+-18=0

6x=18

divide both side by 6, and you get 3=x!

I hope that all makes sense :)

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bija089 [108]

C) 3.07 x 10 to the negative 4

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3 years ago

Simplify<br> (x + 3)<br> (x + 3)

8_murik_8 [283]

Answer:

x^2-6x+9

Step-by-step explanation:

(x-3)^2

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3 0

4 years ago

A true-false test contains 21 questions. In how many different ways can this test be completed.

KatRina [158]

There are 5.1090942e+19 different ways this test can be completed

<h3>In how many different ways can this test be completed?</h3>

The given parameters are:

Questions, n =21

Options = 2 i.e. true or false

The number of different ways this test can be completed is calculated as:

Ways = n!

Substitute 21 for n in the above equation.

So, we have:

Ways = 21!

Expand the above equation

Ways = 21 * 20 * 19 * ...... 1

Evaluate the products

Ways = 5.1090942e+19

Hence, there are 5.1090942e+19 different ways this test can be completed

Read more about factorials at:

brainly.com/question/25997932

#SPJ1

8 0

2 years ago

Joshua walked 14 feet down the hall of his house to get the door he continued in a straight line out the door and across the yar

AleksandrR [38]

Answer:

Joshua walked 48 feet in total.

Step-by-step explanation:

To find the total distance we need to sum every distance that he walked. We have:

- First: Joshua walked down the hall to the door = 14 feet

- Second: He continued in a straight line out the door and across the yard to the mailbox = 24 feet

- Third: He came straight back across the yard and stopped to pet his dog = 10 feet

Hence, the total distance is:

$d_{T} = d_{1} + d_{2} + d_{3} = 14 ft + 24 ft + 10 ft = 48 ft$

Therefore, Joshua walked 48 feet in total.

I hope it helps you!

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4 years ago

The ratio of two supplementary angles is 4:1, Find the measures of both angles.

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3 years ago