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Serjik [45]
2 years ago
11

Polynomials Multiply 5x(x2 - 4x + 2)

Mathematics
2 answers:
Korvikt [17]2 years ago
8 0

Answer:

5x^3-20x^2+10x

salantis [7]2 years ago
4 0

Answer:

Assuming "x2" is x squared:

5x(x2-4x+2)

(5x(x2)+5x(-4x)+5x(2))

<u>5x^3-20x+10x</u>

For these polynomial multiplication problems, just distribute the number outside the parentheses.

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1.5/4x+1=0.4/x+4 PLEASE HELP ITS PROPORTIONS
Serhud [2]

Answer:

Proportion states that the two fractions or ratios are equal

Given the equation:  \frac{1.5}{4x+1} = \frac{0.4}{x+4}

By cross multiply we get;

1.5(x+4) = 0.4(4x+1)

Using distributive property; a\cdot (b+c) = a\cdot b+ a\cdot c

1.5x + 6= 1.6x + 0.4

Subtract 0.4 from both sides we get;

1.5x +5.6= 1.6x

Subtract 1.5x from both sides we get;

5.6= 0.1x

Divide both sides by 0.1 we get;

x = \frac{5.6}{0.1}

Simplify:

x = 56

Therefore, the value of x that satisfy the equation \frac{1.5}{4x+1} = \frac{0.4}{x+4} is, 56

5 0
3 years ago
Huda made 8 matching bracelets. She used 128 beads in all. How many beads did she use per bracelet?
Elden [556K]

Answer:

To figure out the answer all you have to do is divide 128 by 8 and you get:

16 beads per bracelet


Hope this helped and plz mark as brainliest!


8 0
3 years ago
Write a real world problem that you would represent with the equation 4x+5=37.
umka2103 [35]
If there were 37 apples. One of your friends took 5 apples. You divided the leftover apples and gave it to your four friends. How many apples did each of the four friends get?

x=8
37-5=32
32/4=8.
8 0
3 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
Anni [7]

Answer: The rocket will reach its max after 4 seconds

Step-by-step explanation:

Hi, to find the maximum height, we have to set the first derivative of the equation equal to zero.

y=-16x^2+128x+136

0 = (2)-16x +128  

0= -32x+128

Solving for x:

32x = 128

x = 128/32

x = 4 seconds

The rocket will reach its max after 4 seconds

Feel free to ask for more if needed or if you did not understand something.

7 0
3 years ago
Simplify the expression below. Make sure to reduce all fractions.<br><br> 8sec(x)/-7sec(x)
Sidana [21]

Answer:

- \frac{8}{7}

Step-by-step explanation:

Given

\frac{8secx}{-7secx} ← cancel sec x on numerator/ denominator

= \frac{8}{-7}

= - \frac{8}{7}

7 0
3 years ago
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