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WARRIOR [948]
2 years ago
9

Please help with #9 i’ll be giving a brainliest to the person with the correct answer

Mathematics
1 answer:
ikadub [295]2 years ago
4 0

Answer: y= -5x+7 hehe its right

Step-by-step explanation:

y=mx+b

y=-5x+7

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#16 plz and the answer and<br> Work plz!!!
wolverine [178]
(32/8)-18+4
4-18+4
-14+4
10
5 0
3 years ago
Factorise the following.​
spin [16.1K]

Answer:

x²(9x– 11)(9x + 11)

Step-by-step explanation:

81x⁴ – 121x²

The expression can be factorised as follow:

81x⁴ – 121x²

x² is common to both term. Thus:

81x⁴ – 121x² = x²(81x² – 121)

Recall:

81 = 9²

121 = 11²

Therefore,

x²(81x² – 121) = x²(9²x² – 11²)

= x²[(9x)² – 11²]

Difference of two squares

x²(9x– 11)(9x + 11)

Therefore,

81x⁴ – 121x² = x²(9x– 11)(9x + 11)

3 0
2 years ago
2 2/9+ 3 3/7 +1 4/9 enter sum in a box as a mixed number in simplest form
viva [34]

Answer:

Input Data :

Mixed Fraction A =  

7

1

6

Mixed Fraction B =  

2

1

3

Step-by-step explanation:

wrong

4 0
3 years ago
Read 2 more answers
Birth weights in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495 g. The Newport
s344n2d4d5 [400]

Answer:

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

Step-by-step explanation:

Let X the random variable that represent the birth weights of a population, and for this case we know the distribution for X is given by:

X \sim N(3420,495)  

Where \mu=3420 and \sigma=495

We are interested on this probability

P(2450

And we can use the z score formula given byÑ

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

6 0
3 years ago
1. Which polynomial is equal to (4x^2 - 3x - 1)+(-3x^2 + 5x - 8)
RSB [31]

Answer:

d

Step-by-step explanation:

x4+28+584+-4847-+6384

did it for me either ir you excited for the good of a great day I just want it to be a cube has

4 0
2 years ago
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