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3 years ago

Subtract (3x^3+4x^2)-(2x^3+3x^2-x)

Mathematics

1 answer:

insens350 [35]3 years ago

4 0

Answer:

X^3 + x^2 + x

Step-by-step explanation:

First, distribute the negative sign to the numbers in the second parentheses. Then you’ll need to combine like terms.

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What is the solution set for x in log4(x+5)+log4x=log4 14

marishachu [46]

$log_ {4} (x+5) + log_4(x) = log_4(14)$

For logs with same base :

$log_b(f(x)) + log_b(g(x)) = log_b(f(x)*g(x))$

$Log_4(x+5) + log_4(x) =log_4((x+5)x)$

$log_4((x+5) = log_4(14)$

When the logs have the same base :

$log_b(f(x)) = log_b(g(x))$

$F(x) = g(x)$

For $log_4((x+5)x) = log_4(14)$

Solve $(x+5)x = 14$

expand

$(x+5)x = x^2 + 5x$

$x^2+5x+14$

$(x-2)(x+7) = 0$

$x = 2 , x = - 7$

Therefore, the final solution : $x = 2$

hope this helps!

3 0

3 years ago

What is the area of the trapezoid?

kkurt [141]

Answer:

About 30.904 cm.

Step-by-step explanation:

The equation is A=1/2(a+b)h

Where A=22.2

B=8.52

C= 9.86

8 0

3 years ago

Read 2 more answers

Insert two rational number between 1.3 bar and 1.4 bar

jok3333 [9.3K]

General method:

Given numbers are 1.3 bar and 1.4 bar

1.3 bar = 1.333...
1.4 bar = 1.444...

Two rational numbers between them

= 1.3222... and 1.43333...

Mean Method:

Let X = 1.333... → → →eqn(i)

since the periodicity is 1 then multiply eqn(i) with 10

⇛10×X = 1.333...×10

⇛10X = 13.333... → → →eqn(ii)

Subtract eqn(ii)-eqn(i)

10X = 13.333...

X = 1.333...

(-)

____________

9X = 12.000...

____________

⇛9X = 12

⇛X = 12/9

⇛X = 4/3

and

Let X = 1.444... → → →eqn(i)

since the periodicity is 1 then multiply eqn(i) with 10

⇛10×X = 1.444...×10

⇛10X = 14.444...→ → →eqn(ii)

Subtract eqn(ii)-eqn(i)

10X = 14.444...

X = 1.444...

(-)

____________

9X = 13.000...

____________

⇛9X = 13

⇛X = 13/9

Now we have 12/9 and 13/9

The rational number between them by mean method (a+b)/2

⇛{(12/9)+(13/9)}/2

⇛(25/9)/2

⇛25/18

and Second rational number

⇛{(12/9)+(25/18)}/2

⇛{(24+25)/18}/2

⇛(49/18)/2

⇛49/36

Answer: The two rational numbers between them are 25/18 and 49/36.

also read similar questions: INSERT TWO RATIONAL NUMBERS BETWEEN 2 AND 3. How to find them?

brainly.com/question/85169?referrer

8 0

3 years ago

The equation y minus 3 = negative 2 (x + 5) is written in point-slope form. What is the y-intercept of the line?

lubasha [3.4K]

Answer:

-7

Step-by-step explanation:

y-3=-2(x+5)

So we need to put this in slope-intercept form...

y - 3 = -2x -10 (You use the distributive property)

Then shift the -3 over to meet the other constant -10 by addition.

y - 3 = -2x -10

+3 + 3

y = -2x -7 since y = mx + b is in slope intercept form m = slope and b = y intercept, therefore the y intercept is -7

Hope This Helps!

Please Mark Brainliest When Possible! :)

8 0

3 years ago

Read 2 more answers

Please help me with this!!!!!!!!!!

Nat2105 [25]

It's the bottom one. Miko found the incorrect and checked her work using multipication incorrectly.

This is because the correct way to solve this would to use (5/1) * (3/5) = (15/5) then simplify it to 3/1 or simply 3.

Dividing fractions is simply flipping the second fraction and then multiplying across

4 0

3 years ago