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3 years ago

How do you write 20,484,163 in expanded form? with multiple

2 answers:

8 0

So in expanded form you would write it like this..
20,000,000 + 400,000 + 80,000 + 4,000 + 100 + 60 + 3 = 20,484,163

Good Luck! :)

natta225 [31]3 years ago

5 0

20,484,163
= 20,000,000 + 400,000 + 80,000 + 4,000 + 100 + 60 + 3

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A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C

krok68 [10]

Answer:

C = 25 + 50h

Step-by-step explanation:

cost for zero hours is $25, so that is the y-intercept of the graph.

each hours adds a cost of $50, so that is the gradient of the graph. These two values give us our equation in slope-intercept form.

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3 years ago

A sequence is defined by the recursive function if f(1)=10 what is f(3)

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Than f(3)=30? i would believe so

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4 years ago

Read 2 more answers

A sample of 50 drills had a mean lifetime of 12.17 holes drilled when drilling a low-carbon steel. Assume the population standar

zmey [24]

Using the z-distribution, it is found that the 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

We are given the standard deviation for the population, hence, the z-distribution is used. The parameters for the interval is:

Sample mean of $\overline{x} = 12.17$
Population standard deviation of $\sigma = 6.37$
Sample size of $n = 50$ .

The margin of error is:

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

In which z is the critical value.

We have to find the critical value, which is z with a p-value of $\frac{1 + \alpha}{2}$ , in which $\alpha$ is the confidence level.

In this problem, $\alpha = 0.95$ , thus, z with a p-value of $\frac{1 + 0.95}{2} = 0.975$ , which means that it is z = 1.96.

Then:

$M = 1.96\frac{6.37}{\sqrt{50}} = 1.77$

The confidence interval is the sample mean plus/minutes the margin of error, hence:

$\overline{x} - M = 12.17 - 1.77 = 10.4$

$\overline{x} + M = 12.17 + 1.77 = 13.94$

The 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

A similar problem is given at brainly.com/question/22596713

6 0

3 years ago

Determine the area of the triangle.

wlad13 [49]

Answer:

no triangle given try to use a = 1/2(b x h) for the area

Step-by-step explanation:

3 0

3 years ago

From point A and B on level ground, the angles of

gladu [14]

Answer:

Step-by-step explanation:

Call T the top

call G the bottom

T G B is a right triangle

37 at B, 90 at G, thus 53 at BTG

TGA is a right triangle

25 at A, 90 at G, thus 65 at ATG

thus 122 at ABT

law of sines:

sin 25 / BT = sin 12/ 57

so BT = 156 meters (first answer)

now angle ABT = 180 - 12 - 25

= 143

sin 143 /AT = sin12/57

AT = 164 meters, second answer

4 0

3 years ago