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Alex73 [517]
2 years ago
12

PLEASE HURRY!! 20 PTS!!

Mathematics
2 answers:
maks197457 [2]2 years ago
7 0
We have one of those equations already solved for y, so let's sub that one into the other one and solve the equation in terms of x only: 2x+( x^{2} -4x+3)=6.  We will simplify that and at the same time bring the 6 over by subtraction to get a polynomial set to equal 0 that we can factor.  x^{2} -2x-3=0.  We will factor that to get (x-3)(x+1) for x values of x = 3 and x = -1.  a above is the choice that has the x values we need, -1 and 3.
boyakko [2]2 years ago
3 0
B is the final answer!!! :)
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What is the probability that a marble chosen at random is
Brums [2.3K]

Answer:

P=\frac{6}{11}

Step-by-step explanation:

The probability can be defined as the ratio between the possible events and the total number of outcomes.

In this case, according to the image attached, the total number of outcomes is 11, because they are 11 marbles in total.

Now, the specific event is all shaded marbles or labeled with a multiple of 3. With this specific characteristics 6 marbles, because there are 5 shaded marbles and 6 is a multiple of 3. So, the possible events are 6.

Therefore, the probability is

P=\frac{6}{11}

The right answer is the last choice.

4 0
3 years ago
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What type of function is represented in the table?
Fynjy0 [20]
I am pretty sure it linear
6 0
2 years ago
How many oranges are in a crate if the price of a crate of oranges is $1.60 and the price of oranges is $0.20 per pound and ther
Shtirlitz [24]

Answer:

7 oranges

Step-by-step explanation: 3 oranges in a pound 0.20 cents per pound. 60 cents per pound add it up.

8 0
3 years ago
Please answer quickly,thanks you shall be marked a branliest<br>​
Leviafan [203]

Answer:

18.0  cm to 1 decimal point.

Step-by-step explanation:

First  work out the unknown side (s) of the right triangle using the Pythagoras theorem:

s^2  = 13^2 - 5^2

       = 169 - 25 = 144

s = sqrt 144 = 12 cm.

Now consider the other triangle:

s = 12

The missing angle = 180 - 65 - 40 = 75 degrees.

By the Sine Rule:

x / sin 75 = 12 / sin40

x = 12 sin 75 / sin 40

  = 18.03

    -

3 0
1 year ago
A company manufactures televisions. The average weight of the televisions is 5 pounds with a standard deviation of 0.1 pound. As
Semenov [28]

Answer:

0.2564\text{ pounds}

Step-by-step explanation:

The 90th percentile of a normally distributed curve occurs at 1.282 standard deviations. Similarly, the 10th percentile of a normally distributed curve occurs at -1.282 standard deviations.

To find the X percentile for the television weights, use the formula:

X=\mu +k\sigma, where \mu is the average of the set, k is some constant relevant to the percentile you're finding, and \sigma is one standard deviation.

As I mentioned previously, 90th percentile occurs at 1.282 standard deviations. The average of the set and one standard deviation is already given. Substitute \mu=5, k=1.282, and \sigma=0.1:

X=5+(1.282)(0.1)=5.1282

Therefore, the 90th percentile weight is 5.1282 pounds.

Repeat the process for calculating the 10th percentile weight:

X=5+(-1.282)(0.1)=4.8718

The difference between these two weights is 5.1282-4.8718=\boxed{0.2564\text{ pounds}}.

8 0
3 years ago
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