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ELEN [110]
3 years ago
7

David is playing a trivia game where he gains points for correct answers and loses points for incorrect answers. At the start of

round 3 his score is −1500 points. During round 3 he answered five 1000 point questions correctly and three 500 points questions incorrectly. What is his score at the end of round 3?
Mathematics
1 answer:
lord [1]3 years ago
6 0
At the end of Round 3, David's score would be 2000. 
You might be interested in
Is -0.3 a rational number? is 3.14144144414444... a rational number?
Ainat [17]

I will try to make this as simple as possible.

First off, we need to know what a rational number is: A rational number is any number that can be made by dividing 2 integers. For example:

1.5 would be a rational number because 1.5 = 3/2 (3 and 2 are both integers)

With that being said, let's begin.

First off, let's start with -0.3, let's ask ourselves, can we make this number by dividing 2 integers, the answer is yes, we can, by doing \frac{-3}{10} we have the equivalent of -0.3, so now we know it's a rational number.

As for the second one, it can't be a rational number because it can't be made by dividing to integers, so the answer is:

-0.3 is a rational number, but 3.14144144414444 is not.

Hope this helped! c:

3 0
2 years ago
Solve x + 9 = 18 - 2x
bezimeni [28]
Add 2x to both sides,
3x+9=18
Subtract 9 from both sides. 3x=9
Divide both sides by 3. 
x=3
6 0
2 years ago
Matt went hiking every 12 days and swimming every 8 days when will he go hiking again on the same day
-Dominant- [34]
Every 24 days Matt will do both on the same day.
3 0
3 years ago
A firefighter places a 29 feet ladder, so that the base of the ladder is 21 feet from the wall. What is the height at which the
Tju [1.3M]
Pythagorean theorem:
a^2+b^2=c^2 (C^2 always is the hypotenuse)

21^2+b^2=29^2
441+b^2=841
841-441=400
square root of 400 is 20
Your answer is 20
6 0
2 years ago
Find the sine and cosine of the given angle<br> 120°
SIZIF [17.4K]

Answer:

By using the value of cosine function relations, we can easily find the value of sin 120 degrees. Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. We know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2

Step-by-step explanation:

please mark brainlist

3 0
2 years ago
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