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n200080 [17]
3 years ago
8

4x^2+4x+1=9 what are all the solutions? Thanks

Mathematics
1 answer:
ziro4ka [17]3 years ago
8 0
4x^2+4x-8=0
X^2+x-2=0
(X+2)(x-1)=0
X= -2 or 1
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Sergio039 [100]

Answer:

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability that a sophomore non-Chemistry major

Out of 92 students, 9 are non-chemistry major sophomores. So

P(A) = \frac{9}{92}

Then a junior non-Chemistry major are chosen at random.

Now, there are 91 students(1 has been chosen), of which 10 are non-chemistry major juniors. So

P(B) = \frac{10}{91}

What is the probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random

P = P(A)*P(B) = \frac{9}{92}*\frac{10}{91} = \frac{9*10}{92*91} = 0.0108

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

8 0
3 years ago
(98 points) BEST EXPLANATION + CORRECT ANSWER GETS BRAINLIEST!
lidiya [134]
It's a vertical angle. Add the two angles 143+33=176
then divide by 2 , 176÷2=88

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4 0
3 years ago
Read 2 more answers
Five friends each spent the same amount of money, x, on school supplies. They expected to spend a total of $130, but the actual
Nadusha1986 [10]

Answer:

its the second option

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8 0
3 years ago
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Help please due soon
KATRIN_1 [288]

Answer:

y = 6x

Step-by-step explanation:

You can easily find the slope by using slope formula:

(y2-y1) / (x2-x1) (the numbers are subscript)

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5 0
3 years ago
6×5/6=24 I think I hope
Rom4ik [11]
No 6x5/6 is 5.
6x5 is 30.
30/6=5
Ignore @popmypussy
Hope i could help!
Thunderclan89
7 0
3 years ago
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