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2 years ago

10

An object is moving at a speed of 2 centimeters every 7 seconds. Express this speed in meters per week. Round your answer to the

nearest whole number.

2 answers:

Novosadov [1.4K]2 years ago

5 0

129600 is the answer

andrew11 [14]2 years ago

4 0

Answer:

1209600

Step-by-step explanation:

there are 604800 seconds in a week multiply that by 2 and you get 1209600

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1433.4 to the nearest 10

frozen [14]

Answer:

14,334 actually that might not be the answer im just thinking that because the 4 is in the tenths place and ur rounding that u would make it into a whole number

4 0

3 years ago

The Drury Lane Theater has 10 seats in the first row and 38 rows in all. Each successive row contains one additional seat. How m

densk [106]

Answer:

1083 seats

Step-by-step explanation:

this is an arithmetic sequence :

an = an-1 + c

in our case

a1 = 10 (10 seats in the first row)

a2 = a1 + 1 = 10 + 1 = 11

a3 = a2 + 1 = a1 + 1 + 1 = 10 + 1 + 1 = 12

an = an-1 + 1 = a1 + (n-1)×1 = a1 + n - 1 = 10 + n - 1 = 9 + n

a38 = a1 + 37 = 10 + 37 = 47 seats.

altogether this means the sum of the arithmetic sequence of a1 to a38.

the general sum of an arithmetic sequence from a1 to an is

n×(a1 + an)/2

in our case

38×(10 + 47)/2 = 19×57 = 1083 seats

3 0

2 years ago

Is 19lb greater than 298oz

bulgar [2K]

Answer:

yes because 19 lb. convert into 304 so it would be greater also could you mark me as the brainiest i would appreciate it im trying to move up in rank

7 0

2 years ago

Read 2 more answers

Simplify 4 1/2 x 2 3/5<br> 8 3/7<br> 117/7<br> 8 3/10<br> 11 7/10

Lynna [10]

Answer:

$\frac{27}{5} = 5 \frac{2}{5}$

Step-by-step explanation:

4 1/2 × 2 3/5

9/2 × 2 × 3/5

9 × 3/5

<u>=</u><u> </u><u>2</u><u>7</u><u>/</u><u>5</u><u> </u><u>=</u><u> </u><u>5</u><u> </u><u>2</u><u>/</u><u>5</u>

8 0

3 years ago

Pre-image point N(6, -3) was dilated to point N'(2, -1). What was the scale factor used?

blagie [28]

Question 1

Let the scale factor be k.

Then, we have the mapping

$N(6,-3)\to N'(6k,-3k)$

This implies that:

$(6k,-3k)=(2,-1)$

We equate any corresponding component find the value of the scale factor k.

6k=2

$k=\frac{2}{6}$

$k=\frac{1}{3}$

Hence the scale factor is $\frac{1}{3}$

Question 2:

The midpoint of any two points can be calculated using the formula;

$(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

We want to find the midpoint of (-8, 5) and (2, -2).

$(\frac{-8+2}{2}, \frac{5+-2}{2})$

$(\frac{-6}{2}, \frac{3}{2})$

The midpoint is:

$(-3, \frac{3}{2})$

5 0

3 years ago

Read 2 more answers