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3 years ago

I am a 3-digit decimal. The sum of my digits is nine. One of my decimal digits is 0. I have a 3 in my tenths place. Who am I?

1 answer:

6 0

.360 or .306
Because 3 is in the tenths place, there is a 0, and 3+6+0= 3+6=9 the sum of all the digits. And it’s a three digit decimal.

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Find the sum of the first 10 terms 0.5,0.9,1.3,1.7,..

IRINA_888 [86]

Answer:

0.5, 0.9, 1.3, 1.7, 2.1, 2.5, 2.9, 3.3, 3.7, 4.1

Now you can add them all

which is equal to 23

Step-by-step explanation:

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3 years ago

To prove these triangles congruent using HL, we must show that

Arada [10]

I have no idea I am sorry

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3 years ago

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Triangle ABC has side lengths a= 24, b= 40, and c= 55. What is the measure of angle C? 83.6° 116.2° 23.0° 40.7°

Harlamova29_29 [7]

<h3>Answer: 116.2°</h3>

Work Shown:

$c^2 = a^2 + b^2 - 2ab\cos(C)\\\\55^2 = 24^2 + 40^2 - 2*24*40\cos(C)\\\\3025 = 576 + 1600 - 1920\cos(C)\\\\3025 = 2176 - 1920\cos(C)\\\\3025 - 2176 = -1920\cos(C)\\\\849 = -1920\cos(C)\\\\-1920\cos(C) = 849\\\\\cos(C) = (849)/(-1920)\\\\\cos(C) \approx -0.4421875\\\\C \approx \cos^{-1}(-0.4421875)\\\\C \approx 116.243535748231^{\circ}\\\\C \approx 116.2^{\circ}\\\\$

The first equation is one of the three variations for the Law of Cosines.

Make sure your calculator is in degree mode.

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2 years ago

Rachel has been given $1000 to put into a savings account. She earns 2% simple interest

tangare [24]

Answer:

She will not have enough. She will only have $1480.

Step-by-step explanation:

The formula for simple interest is A=P(1+rt)

A=final amount

P=initial amount

r=interest rate per month

t=time in months

A=1000(1+(0.02)(24))=1480

Rachel will not have enough money after two years (24 months.)

Hope that helps!

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3 years ago

Two trains leave stations 520 miles apart at the same time and travel toward each other. One train travels at 110 miles

Naya [18.7K]

Answer:

They wont meet

Step-by-step explanation:

The one going 110 will pass before the other one can reach it.

Please mark me the brainliest, 5 stars, and a thanks! Have a great day!

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3 years ago