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3 years ago

55 points

Mathematics

1 answer:

cupoosta [38]3 years ago

4 0

Answer:

160:40 or 160 to 40, 80:320 or 80 to 320, 400:1000 or 400 to 1000

Step-by-step explanation:

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Write an inequality to model the situation.

svet-max [94.6K]

Answer:

$n >21$

Step-by-step explanation:

The number exceeds 21 or is greater than 21.

‘ $>$ ’ represents greater than.

Let the number be $n$ .

$n >21$

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2 years ago

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What is the final step to prove that Sn>-1/2-1/4-1/8...-1/2n=1/2n

ahrayia [7]

Answer:

By a theorem we learned, i. and ii. are valid under the assump- tion that the sequences (a n)1 n=1and (b n) 1 n=1are convergent. For iii.]

Step-by-step explanation:

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3 years ago

Due to inflation, a fixed quantity of money can buy 3% less every year. If Pam has enough in her wallet to buy 47 movie tickets

Nitella [24]

3% x 10 years is 30%. 47 - 30% is 14.1 or 14

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3 years ago

A star in the sky appears to move by 12 arcseconds over the course of 6 months. Convert this number into first areminutes then d

Bumek [7]

Answer:

Given :A star in the sky appears to move by 12 arc seconds over the course of 6 months.

To Find :Convert this number into first arc minutes then degrees.

Solution:

60 arc seconds = 1 arc minute

1 arc seconds = $\frac{1}{60}$ arc minute

12 arc seconds = $\frac{1}{60} \times 12$ arc minute

12 arc seconds = $\frac{1}{5}$ arc minute

So, 12 arc seconds = $\frac{1}{5}$ arc minute

Now convert it into degrees

60 arc minute = 1 degree

1 arc minute = $\frac{1}{60}$ degree

$\frac{1}{5}$ arc minute = $\frac{1}{60} \times \frac{1}{5}$ degree

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3 years ago

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satela [25.4K]

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2 years ago

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