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3 years ago

Use synthetic division to find the result when 2x4 – 1423 + 16x2 – 19x - 30 is

Mathematics

1 answer:

NikAS [45]3 years ago

4 0

The final answer should be
2x^3 - 2x^2 + 4x + 5

hope this helps!

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5 plus 2 minus 7 plus 4

Yakvenalex [24]

Answer:

5+2=7-7+4=4 =4 the answer is 4

Step-by-step explanation:

do not cheat 1st grader

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3 years ago

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Cho biểu thức : A=(√x+1)/(√x-2) +(2√x)/(√x+2 )+(2+5√x)/(4-x)

kvasek [131]

Answer:

A= (3*X - 6 $\sqrt{x}$ )/(X-4)

A=(3*2 - 6 $\sqrt{2}$ )/(2-4)= -3+3 $\sqrt{2}$

A=(3*4 - 6 $\sqrt{4}$ )/(4-4) Unknown

Step-by-step explanation:

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3 years ago

~~~15 POINTS~~~<br> Please help me with this question.

Step2247 [10]

Divide the actual building's measurements by the replica's measurements.

$\frac{400}{20}=20\\\\\frac{320}{16}=20$

The measurements of the actual building are divided by 20 not 12.
The crew member's calculation is incorrect.

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3 years ago

You tape two pieces of paper together that each measure

sertanlavr [38]

Answer:

The paper is 60.73 cm long.

Step-by-step explanation:

The two pieces of paper each measure 41.36 cm, so those together would be 82.72 cm. Subtracting the 21.99 that is cut off, you're left with 60.73 cm. Hope this helped!

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3 years ago

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Find the exponential function that passes through the points (2,80) and (5,5120)

juin [17]

Answer:

y = 5·4^x

Step-by-step explanation:

If you have two points, (x1, y1) and (x2, y2), whose relationship can be described by the exponential function ...

y = a·b^x

you can find the values of 'a' and 'b' as follows.

Substitute the given points:

y1 = a·b^(x1)

y2 = a·b^(x1)

Divide the second equation by the first:

y2/y1 = ((ab^(x2))/(ab^(x1)) = b^(x2 -x1)

Take the inverse power (root):

(y2/y1)^(1/(x2 -x1) = b

Use this value of 'b' to find 'a'. Here, we have solved the first equation for 'a'.

a = y1/(b^(x1))

In summary:

b = (y2/y1)^(1/(x2 -x1))
a = y1·b^(-x1)

For the problem at hand, (x1, y1) = (2, 80) and (x2, y2) = (5, 5120).

b = (5120/80)^(1/(5-2)) = ∛64 = 4

a = 80·4^(-2) = 80/16 = 5

The exponential function is ...

y = 5·4^x

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3 years ago