Answer:
10
Step-by-step explanation:
P(getting blue marbles) = 7/9
so;
x/45 = 7/9
x = 35
so the number of blue marbles is 35
45 - 35 = 10 red marbles
hope it helps .
all the best
Answer:
there's this one app called Photomatix that does any algebra problem
I'm going to go with C.
The inequality isn't greater than OR EQUAL TO which marks out B and D.
The inequality is showing that it is greater than -21 meaning that the shaded area should be towards the positive which in turn marks out A.
To find the mean, we add up all the numbers then divide the sum by how many numbers there are
12 + 15 + 14 + 12 + 4 + 8 = 65
65 ÷ 6 = 10.833333
Hope this helps
So writing a polynomial in standard form is just combining all like terms and then rearranging those terms in descending order of degree. In this case, the term with the highest degree is 2x^2, then 3x, then -6, so our standard form polynomial is ![2x^2+3x-6](https://tex.z-dn.net/?f=%202x%5E2%2B3x-6%20)
Next, since there are three terms in this polynomial, this would be classified as a trinomial (tri = 3). Now to find the degree of this polynomial, just take the total number of exponents from the highest term, which in this case its 2x^2 with a total of 2. Putting it all together, this polynomial is a 2nd degree trinomial.