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2 years ago

Add the two numbers. Express your answer in scientific notation.

Mathematics

2 answers:

Elan Coil [88]2 years ago

8 0

Answer:

theres nothing? :/

Step-by-step explanation:

makvit [3.9K]2 years ago

3 0

Where is the problem?

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Just want to make sure that I did my maths right. anyone helps. thanks

ahrayia [7]

Yes you got them all correct at least I think.

5 0

2 years ago

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for p(x)= 192 + 21x^3 + 54x^2 - 3x^4 - 264x, use synthetic substitution to evaluate p(1), p(-2), and p(8)

RSB [31]

The value of p(1), p(-2), and p(8) is 0, 744 and 0 respectively

<h3>What is polynomial function?</h3>

Given the function $p(x)= 192 + 21x^3 + 54x^2 - 3x^4 - 264x$

We are to get the following parameters:

$p(1)= 192 + 21(1)^3 + 54(1)^2 - 3(1)^4 - 264(1)\\p(1)=192+21+54-3-264\\p(1)=0$

For p(-2)

$p(-2)= 192 + 21(-2)^3 + 54(-2)^2 - 3(-2)^4 - 264(-2)\\p(-2)=192-168+216-24+528\\p(-2)=744$

For p(8)

$p(8)=192 + 21(8)^3 + 54(8)^2 - 3(8)^4 - 264(8)\\p(8)=192+10,752+3,456-12,288-2,112\\p(-2)=0$

Hence the value of p(1), p(-2), and p(8) is 0, 744 and 0 respectively

Learn more on polynomials here: brainly.com/question/4142886

7 0

1 year ago

The average speed of an express train is 15 mi/h faster than the average speed of a local train 2 hours longer than the express

natta225 [31]

360÷15×2=48hrs of the express train.

5 0

2 years ago

X^2-4x+c find the value of c

Sonbull [250]

Answer:

$c = 4$

Step-by-step explanation:

Given

$x^2 - 4x + c$

Required

Find c

The question is incomplete. However, I'll assume the expression is a perfect square.

To find c, we make use of the following formula

$c = (\frac{b}{2})^2$

Where

$ax^2 + bx + c$

By comparison with $x^2 - 4x + c$

$a =1$

$b = -4$

So, $c = (\frac{b}{2})^2$ becomes

$c = (\frac{-4}{2})^2$

$c = (-2)^2$

$c = 4$

<em>The value of c that makes the expression, </em> $x^2 - 4x + c$ <em> a perfect square is 4 and the expression is: </em> $x^2 - 4x + 4$ <em></em>

8 0

2 years ago

Which of the following is a right triangle?

natali 33 [55]

Answer:

Step-by-step explanation:

the right choice is C

you use c^2=a^2+b^2

where the largest side is the hypotenuse

8 0

2 years ago

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