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Ronch [10]
2 years ago
14

What is -x2+2-1+6x2-4x2?

Mathematics
1 answer:
Alexandra [31]2 years ago
6 0

Answer:

x^2+1

Step-by-step explanation:

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Leon wants to estimate the proportion of the seniors at his high school who like to watch football. He interviews a simple rando
cupoosta [38]

Answer:

Yes, the random conditions are met

Step-by-step explanation:

From the question, np^ = 32 and n(1 − p^) = 18.

Thus, we can say that:Yes, the random condition for finding confidence intervals is met because the values of np^ and n(1 − p^) are greater than 10.

Also, Yes, the random condition for finding confidence intervals is met because the sample size is greater than 30.

Confidence interval approach is valid if;

1) sample is a simple random sample

2) sample size is sufficiently large, which means that it includes at least 10 successes and 10 failures. In general a sample size of 30 is considered sufficient.

These two conditions are met by the sample described in the question.

So, Yes, the random conditions are met.

5 0
2 years ago
Who is sacatoa joe in geometry
valkas [14]
I think that you are mistaking the memory tool for something else
or a math book is trying to make math cute by calling them 'socatoa joe' and 'mr. pi' and such


anyway, SOH, CAH, TOA is the way to remember
Sine=oposite/hypotonuse
Cosine=adjacent/hypotonuse
Tangent=oposite/adjacent

(oposite side=side oposite the angle
adjacent is the side touching the angle that is not they hypotonuse
and of course the hypotonuse is the longest side aka, side oposite right angle)
3 0
3 years ago
Write the slope intercept form of a line going through
anyanavicka [17]
Perpendicular = opposite sign and reciprocal slope
Slope 2 turns into -1/2
Y = -1/2x + b
Plug in the point
-5 = -1/2(2) + b, b = -4
Solution: y = -1/2x - 4
5 0
2 years ago
7n-4=31 I need help to solve n
vfiekz [6]
7n-4=31
7n=31-4
7n=27
n=27/7
:n=3
It’s equation and it’s really easy to solve
8 0
3 years ago
Factorise 15x-5 <br> factorise x^2-5x+6
kotegsom [21]
5(3x-1) (x-3)(x-2) I don't know if you want working out or an explanation? Or if it's too late, sorry.
5 0
2 years ago
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