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NemiM [27]
3 years ago
15

Suppose that circles A and B have a central angle measuring 40°. Additionally, circle A has a radius of

Mathematics
1 answer:
nevsk [136]3 years ago
7 0
The answer will be C
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Which of the following points lie in the solution set to the following system of inequalities? y < −3x + 3 y < x + 2
sweet-ann [11.9K]

Answer:

y < 6 \\ x < 4 \\

x( \frac{3y}{?4}  -  \frac{1}{2?}  \frac{2y}{?3} )y < 6 \\ y( \frac{3x}{?2} 4x +  \frac{2}{?3} )x < 4

7 0
3 years ago
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What is the expanded notation for 2,909? Numbers may be used Once,More than once, or not at all.
defon
(2 x 1,000) + (9 x 100) + (9 x 1)
Always check the place values by looking at the number (2,909) and you can figure out what number to multiply it by. Guess and check if you can’t recognize it right away.
3 0
3 years ago
Rewrite the equation in slope-intercept form by solving for y. Find the slope and the y-intercept. 2x+y=2
Tanzania [10]

Answer:

y = 2x - 2

Step-by-step explanation:

2 x + y = 2

2x - 2 = y

8 0
3 years ago
A quality control inspector found that 1.3% of 1500 computers inspected were defective. How many computers were defective?
Lilit [14]

Given that percent of computer infected which is found by quality control inspector = 1.3%

Total number of computers = 1500

Now we have to find the number of Defective computer. To find that we will just need to find the product of given defective percent by the total number of computers.

Total number of defective computers = 1.3% of 1500

Total number of defective computers = 0.013* 1500

Total number of defective computers = 19.5

Hence final answer is approx 20 computers.



8 0
3 years ago
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The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the
larisa86 [58]

Answer:

The need to sample 76 days.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How many days do they need to sample

We need to sample n days.

n is found when M = 300.

We have that \sigma = 1010

So

M = z*\frac{\sigma}{\sqrt{n}}

300 = 2.575*\frac{1010}{\sqrt{n}}

300\sqrt{n} = 2.575*1010

\sqrt{n} = \frac{2.575*1010}{300}

(\sqrt{n})^{2} = (\frac{2.575*1010}{300})^{2}

n = 75.1

Rounding up

The need to sample 76 days.

3 0
3 years ago
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