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viktelen [127]
2 years ago
7

if a bag has five yellow marbles three red marbles and to blue marbles queen randomly picks a marble from the bag and returns it

before another’s picked how many times with one expect to pick a blue marble if he picks a marble 200 times
Mathematics
1 answer:
Julli [10]2 years ago
8 0

Answer: 40 times... I Think

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How much its 5+3+3×15=
AveGali [126]
=5 + 3 + 3 * 15
do multiplication first
=5 + 3 + 45
=8 + 45
=53

ANSWER: 53

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
If x+a is a factor of 2x²+2ax+5x+10,find a.
vazorg [7]

If x+a is a factor of the polynomial, it means that -a is a root of the polynomial.

In fact, if a polynomial p(x) has a root x_0 (i.e. p(x_0)=0), then the polynomial is divisible by (x-x_0)

In your case, you know that the polynomial is divisible by (x+a)=(x-(-a)), so -a is a solution.

Let's evaluate p(-a) and set it to zero:

2(-a)^2+2a(-a)+5(-a)+10 = 0 \iff 2a^2-2a^2-5a+10=0 \iff -5a+10 = 0 \iff a = 2

We can check the answer: if a=2 the polynomial becomes

2x^2+2(2)x+5x+10 = 2x^2+9x+10

And we're claiming that -a=-2 is a root of this polynomial:

2(-2)^2+9(-2)+10 = 2\cdot 4 - 18 + 10 = 0

5 0
3 years ago
corine in making potato salad for each bowl of potato salad she needs 1/4 cup of potatoes how many cups of potatoes will she use
NARA [144]

Answer:

8 cups of potatoes are needed

Step-by-step explanation:

One way of doing this work is to write out

1/4 cup                                             1 cup

------------- , which is equivalent to  ------------ (a unit rate)

 1 bowl                                              4 bowl

and then multiply this unit rate by 32 bowls:

(1/4)(32 bowls) = 8 cups of potatoes are needed

5 0
3 years ago
Which part of the algebraic expression 7a - 4 is the constant?
alexira [117]
The answer is 3. 4 because 4 doesn’t have a variable :)
5 0
3 years ago
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How is a tangent different from a chord
Akimi4 [234]
In a tangent segment, no part of it is in the interior of the circle. with a secant, there is a part in the interior called the chord. hope it helps
if you need help with anything else just ask me 
5 0
3 years ago
Read 2 more answers
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