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4 years ago

I’m confused please help

Mathematics

1 answer:

Law Incorporation [45]4 years ago

3 0

So x equals 30 because u did 180-150 and y is also 30 since you found x you then add 90 plus 30 and it will give u 120 then 180 minus 120 will be 60 then 90 - 60 because u are trying to find y, and u will get 30.

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Solve for the value of x in this equation: 3x-4=2(3x-5).

zavuch27 [327]

X is equal to 2. The steps are listed below :)

3 0

3 years ago

What are the common factors of 9 and 36

wariber [46]

Answer:

The common factors of 9 are 1, 3, and 9.

The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 38.

4 0

3 years ago

Problem

Aleksandr-060686 [28]

Answer:

$-\dfrac{463}{7}$

Explanation:

Given equation: 2x² - 6x - 7 = 0

In quadratic equation: ax² + bx + c

$Sum \ of \ roots : \alpha + \beta = \dfrac{-b}{a}$

$product \ of \ roots : \alpha \beta = \dfrac{c}{a}$

So, here given:

$Sum : \alpha + \beta = \dfrac{-(-6)}{2} = 3$

$Product : \alpha \beta = \dfrac{-7}{2} = - 3.5$

For finding value:

$\dfrac{\alpha^3}{\beta } + \dfrac{\beta^3 }{\alpha }$

join fractions

$\dfrac{\alpha^4+ \beta^4}{\alpha \beta }$

factor out

$\dfrac{(\alpha^2 + \beta ^2)^2 -2\alpha ^2 \beta ^2 }{\alpha \beta }$

when factored more

$\dfrac{((\alpha + \beta)^2 -2\alpha \beta )^2 -2(\alpha \beta)^2 }{\alpha \beta }$

insert values inside

$\dfrac{((3)^2 -2(-3.5) )^2 -2(-3.5)^2 }{-3.5 }$

calculate for value

$-\dfrac{463}{7}$

4 0

2 years ago

Hey can you please help me posted picture of question

Masteriza [31]

The answer is TRUE <3 hope this helps

8 0

3 years ago

Read 2 more answers

Which expression is equivalent to 7c +4 + 10c – 6?<br> 15<br> 15c<br> 17c - 2

slega [8]

Answer:

17c - 2

Step-by-step explanation:

Firstly, add the normal numbers together:

7c + 4 + 10c - 6

4 - 6 = -2

7c + 10c - 2

Now, the two numbers with a c value can be added together:

7c + 10c = 17c

This returns the answer:

17c - 2

Hope this helps!

5 0

3 years ago