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Kay [80]
3 years ago
15

Senpai help me what is 657×678​

Mathematics
2 answers:
labwork [276]3 years ago
8 0

Answer:

The answer is 445,446

Step-by-step explanation:

have a great day everyone :)

nignag [31]3 years ago
5 0

Answer:445446

Step-by-step explanation: Here you go ✌️

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I'm confused. Can someone help?
VARVARA [1.3K]

a.

The polynomial w^2+18w+84 cannot be factored

The perfect square trinomial is w^2+18w + 81

----------

The reason the original can't be factored is that solving w^2+18w+84=0 leads to no real solutions. Use the quadratic formula to see this. The graph of y = x^2+18x+84 shows there are no x intercepts. A solution and an x intercept are basically the same. The x intercept visually represents the solution.

w^2+18w+81 factors to (w+9)^2 which is the same as (w+9)(w+9). We can note that w^2+18w+81 is in the form a^2+2ab+b^2 with a = w and b = 9

================================================

b.

The polynomial y^2-10y+23 cannot be factored

The perfect square trinomial is y^2-10y + 25

---------

Using the quadratic formula, y^2-10y+23 = 0 has no rational solutions. The two irrational solutions mean that we can't factor over the rationals. Put another way, there are no two whole numbers such that they multiply to 23 and add to -10 at the same time.

If we want to complete the square for y^2-10y, we take half of the -10 to get -5, then square this to get 25. Therefore, y^2-10y+25 is a perfect square and it factors to (y-5)^2 or (y-5)(y-5)

8 0
3 years ago
A null hypothesis is being tested. How does the confidence level affect the testing process?
xxTIMURxx [149]
<span>If you have a high confidence level, the chance of rejecting the null hypothesis is rare. If you have a low confidence level, the chance of of rejecting the null hypothesis is nonexistent. If you have a low confidence level, the chance of of rejecting the null hypothesis is rare. If you have a high confidence level, the chance of of rejecting the null hypothesis is high.</span>
5 0
3 years ago
Find the value of x. If necessary, round to the nearest tenth.
Wewaii [24]

Answer:

7.3 in

Step-by-step explanation:

area = 27 = 54/2 = (x^2)/2

so what squared is 54?

7.34 whatever inches.

round it down, that's 7.3.

8 0
3 years ago
Read 2 more answers
if you solve this with the steps your littearly such a pro pro pro pro pro pro pro pro pro pro prohacker​
Yuri [45]

Answer:

maybe 1.5 songs per minute

8 0
2 years ago
Read 2 more answers
PLEASE HELP ME ASAP!!!!!!
Arada [10]

Answer:

$6.30 each bottle

Step-by-step explanation:

What you do is you take $4.50 and times it by .40

<em>4.50 x .40 = 1.80</em>

<em>1.80 + 4.50 = 6.30</em>

$6.30 each bottle

8 0
3 years ago
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