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katovenus [111]
3 years ago
14

15. The equation of a circle is x +

Mathematics
1 answer:
Ne4ueva [31]3 years ago
7 0

Answer:

3

Step-by-step explanation:

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Let f(x)=5x+5 find f(-1)<br><br>I need your help with this. please help me​
Alisiya [41]

f(x) = 5x+5\\\\f(-1) = 5(-1) +5  = -5+5=0

5 0
2 years ago
Practice using graphs of equivalent ratios. On a coordinate plane, point (2, 3) is plotted.A 2-column table with 3 rows. Column
koban [17]

Answer:

2

Step-by-step explanation:

if you multiply 2 by 3=6

  1. 2×2=4
  2. 3×3=9

8 0
2 years ago
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The _____ function is the most basic function in a family of functions.
grandymaker [24]

Answer:

Parent function

Step-by-step explanation:

3 0
2 years ago
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Based on historical data, your manager believes that 40% of the company's orders come from first-time customers. A random sample
Vedmedyk [2.9K]

Answer:

P(0.26 \leq p \leq 0.43)=0.7204-0.0032=0.7172

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

The population proportion have the following distribution

p \sim N(p=0.4,\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.4(1-0.4)}{91}}=0.0514)

And we can solve the problem using the z score on this case given by:

z=\frac{p_o -p}{\sqrt{\frac{p(1-p)}{n}}}

We are interested on this probability:

P(0.26 \leq p \leq 0.43)

And we can use the z score formula, and we got this:

P(\frac{0.26 -0.4}{\sqrt{\frac{0.4(1-0.4)}{91}}} \leq Z \leq \frac{0.43 -0.4}{\sqrt{\frac{0.4(1-0.4)}{91}}})

P(-2.726 \leq Z \leq 0.584)

And we can find this probability like this:

P(-2.726 \leq Z \leq 0.584)=P(Z

7 0
3 years ago
What are the solutions to the quadratic equation x^2-16=0
frutty [35]
Simplifying this, we get:
(x+4)(x-4) = 0
Now, to get 0, we can replace x for one of these things to make 0, so:
x can either be 4, or -4
8 0
3 years ago
Read 2 more answers
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