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3 years ago

(x2 + 3x – 4) + (2x3 - 2x + 5)

Mathematics

2 answers:

seropon [69]3 years ago

7 0

Answer:

step-by-step.

x2+3x−4+2x3−2x+5

=x2+3x+−4+2x3+−2x+5

Combine Like Terms:

=x2+3x+−4+2x3+−2x+5

=(2x3)+(x2)+(3x+−2x)+(−4+5)

=2x3+x2+x+1

Answer:

=2x3+x2+x+1

rosijanka [135]3 years ago

7 0

Answer:

below

Step-by-step explanation:

$( x^{2} + 3x - 4) + ( 2x^{3} -2x = 5) \\x^{2} + 3x - 4 + 2x^{3} - 2x + 5 \\x^{2} + (3x-2x) + 2x^{3} + ( 5 - 4) \\ x^{2} + x + 2x^{3} + 1 \\ 2x^{3} + x^{2} + x + 1$

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The diameter of a circle is 14 inches, Eind the circumference and area. Use Find 22 for it.

snow_lady [41]

Answer:

Step-by-step explanation:

If diameter is 14 inches radius = d/2 = 14/2 = 7 inches

Circumference = 2 pi R = 2 × 22/7 × 7

= 44 inches

Area = pi R square = 22/7 × (7)^2

=22/7 × 49

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Hope this helps

7 0

3 years ago

What is the equation of a line that passes through the point (8, −2) and is parallel to the line whose equation is 3x + 4y = 15?

Dafna1 [17]

Step 1

Find the slope of the given line

we have

$3x+4y=15$

Isolate the variable y

Subtract $3x$ both sides

$3x+4y-3x=15-3x$

$4y=-3x+15$

Divide by $4$ both sides

$y=-\frac{3}{4}x+ \frac{15}{4}$

the slope of the given line is

$m=-\frac{3}{4}$

Step 2

Find the equation of the line that passes through the point $(8,-2)$ and is parallel to the given line

we know that

if two lines are parallel, then their slopes are equal

The equation of the line into point-slope form is equal to

$y-y1=m(x-x1)$

we have

$m=-\frac{3}{4}$

$(x1,y1)=(8,-2)$

substitute in the equation

$y+2=-\frac{3}{4}(x-8)$

$y=-\frac{3}{4}x+6-2$

$y=-\frac{3}{4}x+4$ or $3x+4y=16$

therefore

the answer is

$y=-\frac{3}{4}x+4$

$3x+4y=16$

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3 years ago

An employer said the each worker receives $24 and fringe benefits for every $100 in wages at this rate what wages were earned by

Fynjy0 [20]

Answer:

approximately 43

Step-by-step explanation:

if you make fringe benefits for every 100 dollars that would mean you would have to do this 43 times in order to get the amount to 5,100

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3 years ago

Perform the operation(s) and write the answer in simplest form. (12+13)÷154

wariber [46]

Answer:

0.162

Step-by-step explanation:

(12+13)/154

25/154

0.162

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3 years ago

9x-6=4x+19 I don't understand this please help 10 points

Hunter-Best [27]

5x+25 final answer is x=5

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3 years ago

(x2 + 3x – 4) + (2x3 - 2x + 5)​

(x2 + 3x – 4) + (2x3 - 2x + 5)