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SIZIF [17.4K]
4 years ago
12

12. A bird chirps 10 times a minute. Determine

Mathematics
1 answer:
mrs_skeptik [129]4 years ago
5 0

Answer:

B. 1,440 times per day

Step-by-step explanation:

10*6=60 chirps in an hour

60*24=1440 chirps in a day

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PLEASE HELP!!!
andrey2020 [161]

Answer:

567 mph

Step-by-step explanation:

The speed will actually just be the slope of the line. Slope is change in y-coordinates over change in x-coordinates. We can pick any two points for this; let's just do (1, 567) and (2, 1134).

Slope = (1134 - 567) / (2 - 1) = 567 / 1 = 567

The speed is thus 567 miles/hour.

6 0
4 years ago
Read 2 more answers
The diagram shows a plan for a wheelchair ramp in a shopping Mall. The distance AC is 4 m. calculate the distance AB when BC= 30
nadya68 [22]

Answer:500 cm.

Step-by-step explanation:in the picture.

Please give me a brainliest

8 0
3 years ago
Does 3y-x=6 have a slope of -3
inessss [21]

Answer:

no

Step-by-step explanation:

y=mx+b

applied to the information given:

3y=x+6,

divide both sides by 3

y=1/3x+2

slope is 1/3

8 0
3 years ago
Graph the equation (x - 3)^2 + (y - 2)^2 = 25 and y = 6.
Dmitriy789 [7]

Answer:

x=6, x=0

Step-by-step explanation:

(x - 3) ^{2}+ (y - 2) ^{2}= 25

(x - 3) ^{2}+ (6 - 2) ^{2}= 25

x=6, x=0

3 0
3 years ago
A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents,
RoseWind [281]

Answer:

The statement that​ "the margin of error was given as \pm5 percentage​ points" means that the population proportion is estimated to be with a certain level of confidence, within the interval \hat{p} \pm 0.05 ; where \hat{p}[tex] is the sample's proportion. The correct answer is C. The statement indicates that the interval [tex]0.14\pm0.05 is likely to contain the true population percentage of people that prefer chocolate pie.

Step-by-step explanation:

The margin of error for proportions is given by the following formula:

z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}

Where:

z_{\alpha /2} is the critical value that corresponds to the confidence level; the confidence level being 1-\alpha,

\hat{p} is the sample's proportion of successes,

n is the size of the sample.

In this exercise we have that \hat{p}=0.14 and that the margin of error is 0.05.

Therefore if we replace in the formula to calculate the confidence interval we get:

\hat{p}\pm 0.05=0.14\pm0.05=(0.09, 0.19)

Which means that the true population proportion is estimated to be, with a certain confidence level, within the interval (0.09, 0.19).

7 0
3 years ago
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