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vekshin1
3 years ago
11

Please help meeeeeeee pt 4

Mathematics
1 answer:
liraira [26]3 years ago
5 0

Answer:

The answer is

2 {x}^{2}  + 3x - 1 = 0

Why? Below I explain

Step-by-step explanation:

That formula has three variables a, b and c.

So, a = 2, b = 3 and c = -1

Because the formula is written like

\frac{ - b +  -  \sqrt{ {b}^{2}  - 4 \times a \times c} }{2 \times a}

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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;

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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.

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5 0
3 years ago
Please help<br><br> What is the measure of ∠c?
malfutka [58]
It’s 56 bc a straight line = 180 so 180-124=56
5 0
3 years ago
Write the equation that represents the line graphed below​
rodikova [14]

Answer:

(2,-6)

Step-by-step explanation:

If it's not that then(-6,2)

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7 0
3 years ago
A bicycle went 120 miles in 5 hours. A motorcycle is three times as fast as the bicycle. Find the speed of motorcycle.
NemiM [27]
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Keenan buys an embroidery machine for $1,400. He uses it to embroider T-shirts. His total profit in dollars from selling the T-s
Romashka [77]

Answer:

the graph shift down 135 units

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