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umka2103 [35]
3 years ago
14

PLEASE HELP WITH 6, 7, 8!!!! PLEASEEEEE

Mathematics
1 answer:
Leto [7]3 years ago
3 0
The answer to 6 is 35.
The answer to 7 is 6.
The answer t
Tje
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Lütfen yardım edin.<br>2. sınıf matematik<br>ilkokul
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1, 4, 9, 16, 25, 36, 49, 64, 81, 100
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3 years ago
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What is the value of the discriminant for the quadratic equation -3=-x^2+2x? discriminant =b^2-4ac
Elena L [17]

Answer:

<h2>D = 16</h2>

Step-by-step explanation:

-x^2+2x=-3\qquad\text{add 3 to both sides}\\\\-x^2+2x+3=0\\\\a=-1,\ b=2,\ c=3\\\\\text{Substitute to}\ D=b^2-4ac:\\\\D=2^2-4(-1)(3)=4+12=16

9 0
3 years ago
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Aline has a rise of 6 and a slope of<br> 1/20 What is the run
Softa [21]

。☆✼★ ━━━━━━━━━━━━━━  ☾

The equation is:

slope = rise/run

Rearrange for run:

run = rise/slope

Substitute values in:

run = 6/(1/20)

Solve:

run = 120

Have A Nice Day ❤

Stay Brainly! ヅ

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3 0
3 years ago
A Gallup Poll in July 2015 found that 26% of the 675 coffee drinkers in the sample said they were addicted to coffee. Gallup ann
emmasim [6.3K]

Answer:

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

A confidence interval has two bounds, the lower and the upper

Lower bound:

\pi - M

Upper bound:

\pi + M

In this problem, we have that:

\pi = 0.26, M = 0.05

Lower bound:

\pi - M = 0.26 - 0.05 = 0.21

Upper bound:

\pi + M = 0.26 + 0.05 = 0.31

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

4 0
3 years ago
To estimate the number of lizards in a certain region, Sean traps 36 lizards and marks them. He releases these lizards and then
Verdich [7]

Answer:

The answer is C. 450

Step-by-step explanation:

12345678910

Next Question

Correct

The best estimate for the lizard population is 450.

marked lizards counted

total lizards counted

=  

total marked lizards

estimated lizard population

→  

16

200

=  

36

p

→ p = 450

3 0
3 years ago
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