1 year ago

100 points and brainliest

1 answer:

3 0

You can download the answer here www.hi.com jk it is the right table because you do the left times 1.88 to equal the right

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In an A.P,the sum of first ten terms is -150 and the sum of next 10 terms is -550.Find the A.P

bija089 [108]

S10 = -150;
<span> the sum of next 10 terms = S20 - S10 => -550 = S20 + 150 => S20 = -700;
</span>S10 = -150 => 2a1 + 9r = -30;
S20 = -700 => 2a1 + 19r = -70;
Then 10r = -40 => r = -4 , and, 2a1 -36 = -30 => 2a1 = 6 => a1 = 3;

4 0

2 years ago

A traffic officer is monitoring traffic on a windy section of road that has a speed limit of 55 miles per hour. A car speeds pas

Whitepunk [10]

Answer:

The relative speed of the passing car is 13 miles per hour.

Step-by-step explanation:

$v = \frac{x}{t} \\ v = 13 \frac{mile}{hours} \\ t = 1 \: min \: = \frac{1}{60} \: hours \\ 13 = \frac{x}{ \frac{1}{60} } \\ 13 = \frac{60 \: x}{1} \\ x = \frac{13}{60} miles \: \\ and \: we \: are \: done.$