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3 years ago

Please answer this for me

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

you add 95 and 15 and get 110 then you do 180-110 getting 70

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Prove 3(x+1)(x+7)-(2x+5)² is never positive

Ede4ka [16]

Hope that's correct ✍︎︎

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3 years ago

How do I factor the following equation in the link? It has been factored, but I need to know the steps.

Vlad [161]

Given

$2x^2-x-3=0$

How to factor

Solution

Step 1

Multiply the first and last costant

$-3\times2x^2=-6x^2$

Step 2

Write out all the pair factors of -6x^2

$\begin{gathered} -6x^2=-6x\text{ and x} \\ -6x^2=-x\text{ and 6x} \\ -6x^2=\text{ -3x and 2x} \\ -6x^2=\text{ -2x and 3x} \end{gathered}$

Step 3

Check for the pair, such that when you add you will get -x

$\begin{gathered} it\text{ is } \\ -3x+2x=-x \\ \therefore-3x,\text{ 2x} \end{gathered}$

Step 4

Replace -x with -3x+2x in the equation

$2x^2-3x+2x-3=0$

Step 5

Put them into brackets Since + is at the center no stress.

$(2x^2-3x)+(2x-3)=0$

Step 6

Factor out what is common in the bracket

$x(2x^{}-3)+1(2x-3)=0$

Step 7

What is in the bracket are the same, pick one

$\therefore(2x-3)(x+1)=0_{}$

7 0

1 year ago

Hey this isn't important I just want to know. So anyone who takes there time to explain every symbol, I'll luv u. Also can you t

horsena [70]

To give a brainliest after someone answers or multiple people answer there is a button near it that says pick as brainliest which gives that person a gold crown...sorry i dont know what each of this symbols.mean hope this help though

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3 years ago

Find the measure of x in the figure. <br><br> Write the equation or you will no get full credits

defon

This is Complementary angle

Measure of Complementary angles is 90°

$\bf \large{\purple{ \implies}} \rm \:(2x) \degree \: + \: 40 \degree \: = \: 90 \degree$

$\bf \large{\purple{ \implies}} \rm \:(2x) \degree \: = \: \: 90 \degree \: - \: 40 \degree$

$\bf \large{\purple{ \implies}} \rm \:(2x) \degree \: = \: \: 50 \degree$

$\bf \large{\purple{ \implies}} \rm \:(x) \: = \: \:\frac{ \cancel{50 \degree} \: ^{25 \degree} }{ \cancel{2 \degree}} \\$

$\bf \large{\purple{ \implies}} \rm \:x \: = \: 25 \degree$

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3 years ago

WILL GIVE BRAINLIEST!

MAXImum [283]

Answer:

Texting speed

Step-by-step explanation:

It's the dependent variable

5 0

3 years ago

Read 2 more answers