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3 years ago

(2x^3+4x^2-5x+7)(-5x^2+x-2)=

Mathematics

1 answer:

NeTakaya3 years ago

5 0

=−10x5−18x4+25x3−48x2+17x−14 is the right anwer...

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Hulk left home and walked 8 blocks west. Then he turned and walked 6 blocks north. If each block is 500 ft. long, how far is Hul

son4ous [18]

The answer is 5000 ft

His displacement is actually the hypotenuse (c) of the triangle with sides 6 blocks and 8 blocks.
According to the Pythagorean theoreme:
c² = a² + b²
c² = 6² + 8²
c² = 36 + 64
c² = 100
c = √100
c = 10 blocks

Since 1 block is 500ft long, then 10 blocks are 5000 ft long:
1 : 500ft = 10 : x
x = 10 * 500ft / 1 = 5000 ft

3 0

3 years ago

Which of the following represents "the difference between ten and a number is the sum of eight and a number"?

Alina [70]

10 - N = 8 + N
Hope this helps

6 0

3 years ago

What number should be added to the expression x^2 + 6x to change it into a perfect square trinomal

alexandr402 [8]

Hello.

The correct is answer is 9.

You have to do half of 6 (3) and then square it that equals 9

So it should be <span> x^2 + 6x +9

Have a nice day</span>

5 0

3 years ago

Which of the following is the correct classification of ∆mnp if m<m=35° and m<p=47°?

AnnZ [28]

Answer:

D. Obtuse.

Step-by-step explanation:

We are told that in $\Delta MNP$ $m\angle M=35^o$ and $m\angle P=47^o$ . We are asked to classify our given $\Delta MNP$ .

We can see that angle M and angle P are acute angles as their measure is less than 90 degrees.

Let us find the measure of angle P using angle sum property of triangles, which states that sum of interior angles of a triangle is 180 degrees.

So we can set an equation as:

$m\angle M+m\angle P+m\angle N=180^o$

Upon substituting our given values we will get,

$35^o+47^o+m\angle N=180^o$

$82^o+m\angle N=180^o$

$82^o-82^o+m\angle N=180^o-82^o$

$m\angle N=98^o$

As measure of angle N is 98 degrees, so angle N is an obtuse angle.

Since a triangle having an angle that measures more than 90 degrees is called an obtuse triangle, therefore, $\Delta MNP$ is an obtuse triangle and option D is the correct choice.

4 0

3 years ago

Read 2 more answers

I am a 2 digit number.

AlexFokin [52]

Answer:

Step-by-step explanation:

6+5=11

5 0

3 years ago