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3 years ago

Which expression is equivalent to -3 (x + 5) - (2x + 3) PLZZZ HELPPPPP

Mathematics

2 answers:

Blizzard [7]3 years ago

6 0

-5x-18? I think this is right

andrew11 [14]3 years ago

5 0

Answer:

- 5x - 18

Step-by-step explanation:

Given

- 3(x + 5) - (2x + 3) ← distribute both parenthesis

= - 3x - 15 - 2x - 3 ← collect like terms

= - 5x - 18

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If someone could please help me I’m confused thanks:)

Sedbober [7]

<h3>Answer: x = 45</h3>

Work Shown:

x+x+90 = 180 .... all three angles of a triangle add to 180

2x+90 = 180

2x = 180-90

2x = 90

x = 90/2

x = 45

This is a 45-45-90 right triangle. We also consider it an isosceles right triangle because the base angles (45) are equal.

3 0

3 years ago

A2+b2 = C2solve for a

lesantik [10]

$a^2+b*2=c^2$

$a^2+2b=c^2

$ $\text{Regroup terms}$

$a^2=c^2-2b
$ $\text{Subtract 2b from both sides}$

$a=\pm \sqrt{c^2-2b}$ $\text{Take the square root of both sides}$

3 0

3 years ago

19 ft<br> -Itt<br> Find the surface area of the cylinder.

Valentin [98]

Answer: how

Step-by-step explanation:

8 0

3 years ago

Need Help Please!!!!!!!

marshall27 [118]

ANSWER

$1,413.81

EXPLANATION

The compound interest formula is given by:

$A=P(1+r\%)^t$

Where P=900 is the balance in the account, t=10 is the number of years and r=0.0462 is the rate.

We substitute the values in to the formula to get:

$A=900(1+4.62\%)^{10}$

$A=900(1.0462)^{10}$

This simplifies to:

$A=1413.81$

Therefore $1413.81 will be in the account after 10 years.

6 0

3 years ago

Read 2 more answers

3(1 – 2x) > 3 – 6х help

coldgirl [10]

Answer:

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

inequality
distribution
PEMDAS

<h3>given:</h3>

$3(1 - 2x) > 3 - 6x$

<h3>to solve:</h3>

<h3>let's solve:</h3>

$step - 1 : define\\ 3(1 - 2x) > 3 - 6x$

$step - 2: distribute\\ 3 - 6x > 3 - 6x$

$step - 3 : \\ add \: 6x \: to \: both \: sides$

$3 - 6x + 6x> 3 - 6x + 6x$

$3 > 3$

$\therefore \: the \: statement \: is \: false \: for \: any \: value \: of \: x \: because \: both \: sides \: are \: identical$

therefore,

$x \in ∅$

4 0

2 years ago