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aalyn [17]
3 years ago
11

I need help on this A box contains 3 red, 4 green, and 3 yellow balls. If a ball is drawn at random, find the probability that t

he ball is red.
Mathematics
1 answer:
mojhsa [17]3 years ago
8 0

Answer:

3/10

Step-by-step explanation:

3 red, 4 green, and 3 yellow balls = 10 balls

P(red) = number of red balls / total balls

           = 3/10

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Determine which point is the solution to the given system.
KatRina [158]

Answer:

D

Step-by-step explanation:

We equate both the y's and solve for x algebraically:

-\frac{4}{7}x+16=-\frac{2}{7}x+12\\16-12=-\frac{2}{7}x+\frac{4}{7}x\\4=\frac{2}{7}x\\x=\frac{4}{\frac{2}{7}}\\x=14

Now taking the value x= 14 and putting it in the 1st equation would give us y:

y=-\frac{4}{7}x+16\\y=-\frac{4}{7}(14)+16\\y=8

Hence the solution is (14,8), answer is D

7 0
4 years ago
Write the quadratic equation in general form then choose the value of “b”.
Sonbull [250]

Answer:

Write the quadratic equation in general form then choose the value of “b”.  

(2x-1)(x+5)=0

<u>A.)9</u>

B.)10

C.)11

Step-by-step explanation:

Expand (2x-1)(x+5)

Which is 2x^{2} +9x-5

ax^{2} +bx+c\\

So the value of B is 9

8 0
4 years ago
Use the numbers listed to make the equation true<br><br> 2,6 and 5<br> __ + __ X_ = 16
olya-2409 [2.1K]
Due to the order of operations the correct answer is 6+2*5=16
3 0
3 years ago
Read 2 more answers
Determine whether the following statement is true or false.
fenix001 [56]

Answer:

Step-by-step explanation:

No it doesn't. When you get stuck on a question like this one, you should go to Desmos and graph the equation. I've done that for you.

Correctly stated the equation should read f(x) = (x + 2)^2 + 4

As you can see from the graph the vertex is at -2,4. To find the x value of the vertex, create a small equation

x + 2 = 0

x = - 2

That will turn what is inside the brackets into 0. The value for x is always what will turn (x + a) to zero.

3 0
3 years ago
On a math test a​ student, Sarah​, has to identify all the coefficients and constants of the expression 9 b + 4 + y. Sarah says
mamaluj [8]

Step-by-step explanation:

4 + n + 7m

constants are just the numbers with no variables (letters)

so the constant is 4

coefficients are numbers multiplied by variables (letters)

so the coefficients are : 7 and 1

the error sarah made is forgetting the coefficient of n......because even if it is not written, n is the same as 1n....so basically, there is a coefficient for EVERY variable, even if its not written.

8 0
3 years ago
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