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3 years ago

Simplify (3x^2-2)+(5x^2+5x-1)

Mathematics

2 answers:

Naddika [18.5K]3 years ago

8 0

Hey there! :)

(3x² - 2) + (5x² + 5x - 1)

Remove our parenthesis. Keep in mind that when removing parenthesis, you have to keep a specific rule in mind : positive × positive = positive ; positive × negative = negative ; negative × negative = positive. With that being said, let's remove them! :)

3x² - 2 + 5x² + 5x -1

Combine like terms.

(3x² + 5x²) + (5x) + (-2 - 1) → note that we've added parenthesis into this so that we could clearly distinguish our like terms.

Now, let's simplify.

8x² + 5x + (-3)

Remove our parenthesis.

8x² + 5x - 3

~hope I helped!~

vova2212 [387]3 years ago

7 0

Answer:

8x^2 +5x -3

Step-by-step explanation:

(3x^2-2)+(5x^2+5x-1)

I like to line them up vertically

3x^2 -2

+5x^2+5x-1

------------------------

8x^2 +5x -3

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Usando las propiedades de la igualdad resuelve: 13r=117 y explica el procedimiento

Bas_tet [7]

Answer:

r=9

Step-by-step explanation:

13r=117

r=117/13

r=9

8 0

3 years ago

Mara's family is driving to her grandmothers' house. The family travels 239.4 miles be-

creativ13 [48]

Answer:

Give brainliest please! The answer is 53.2 mph

Step-by-step explanation:

Mara's family travels 239.4 miles between the hours of 9:10 a.m. to 1:40 p.m.

1:40 p.m. is 13:40.

Thus, they traveled for

13 hours 40 minutes - 9 hours 10 minutes = 4 hours 30 minutes

that is hours.

Use formula:

where

D = distance

r = rate

t = time.

In your case,

D = 239.4 miles

t = 4.5 hours

7 0

3 years ago

A career placement test eliminates a profession when a person receives a score of 18 or less. If the score is calculated

Volgvan

Answer:

See the figure attached

Step-by-step explanation:

Let's call :

x: positive response

y: negative response

then the score is:

2x - 3y

A career placement test eliminates a profession when a person receives a score of 18 or less, that's represented by the following inequality:

2x - 3y ≤ 18

3 0

3 years ago

Read 2 more answers

HELP

vodka [1.7K]

So I = Prt

I for interest charge
P for principal ($4,840)
r for rate (6%)
t for time (2 yrs)

So you would then plug the information into the equation.....

I = 4,840*.06*2
I = 580.80

So the answer to your question is $580.80 which is option B

Hope this helps! :)

6 0

4 years ago

Which of the following rational functions is graphed below A.f(x)=1/x-4 B. F(x)=1/4x

dsp73

Considering it's vertical asymptote, the rational function graphed below is given by:

A. $F(x) = \frac{1}{x - 4}$ .

<h3>What are the vertical asymptotes of a function f(x)?</h3>

The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.

In this graph, there is a vertical asymptote at x = 4, that is, x - 4 is a term of the denominator, hence the function is given by:

A. $F(x) = \frac{1}{x - 4}$ .

More can be learned about vertical asymptotes at brainly.com/question/16948935

#SPJ1

8 0

2 years ago