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belka [17]
3 years ago
6

Robert is entering a contest at a local radio

Mathematics
1 answer:
lbvjy [14]3 years ago
5 0

Answer:

Robert has a 59% chance of winning.

Step-by-step explanation:

I had this question on a test once, and I got it right.

Plz can I have brainliest plzzzzz

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Find the measures of the angles of a triangle of the measure of one angle is three times the measure of a second angle and the t
Vinil7 [7]

Answer:

hii

x=30

Step-by-step explanation:

x+3x+5x-90=180

9x=270

x=30

5 0
2 years ago
John owns a hot dog stand. He has found that his profit is represented by the equation p(x)=-x^2+62x+77, with p being profits an
dedylja [7]
Using a graphing calculator you can find that the maximum is 1038, so the profit starts to decline at the t value for <span>1038</span>, which is 31


4 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!! WILL MAKE YOU BRAINLIEST IF RIGHT +40 points!
Simora [160]

The standard form of a quadratic equation is ,

ax² + bx + c = 0.

And the formula to find the discriminant is b² - 4ac.

Here the first step is to change the given equation into standard form. So, add 1 to each sides of the equation. Therefore,

2x² – 9x + 2+1 = –1 + 1

2x² – 9x + 3 = 0

Next step is to compare the given equation with this equation to get the value of a, b and c.

After comparing the equations we will get a = 2, b = -9 and c = 3.

So, discriminant = b²- 4ac

=( -9)²-4 (2)(3)

= 81 - 24

= 57

So, discriminant of the given equation is 57.

57 is greater than 0 and square root of 57 will result real number.

So, the correct choice is C: The discriminant is greater than 0, so there are two real roots.

8 0
3 years ago
Read 2 more answers
PLSSS I NEED HELP i will give you 50 points
DIA [1.3K]

Answer:

131.2

Step-by-step explanation:

x/55=31/14

x=31/13*55

x=131.153846154

4 0
3 years ago
What is the third quartile of the following data set<br><br> 24,20,35,39,28,42,25,29,44,21,37
strojnjashka [21]
First, arrange the data:

20, 21, 24, 25, 28, 29, 35, 37, 39, 42, 44

You can use the formula 
3/4 multiplied by the number of data + 1 to find the position of the 3rd quartile.

so it's going to be 3/4 x (11+1) = 9th position

the number in 9th position is 39 so that's the 3rd quartile 
5 0
3 years ago
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