All categories

2 years ago

PLEASE HELP

Mathematics

1 answer:

SIZIF [17.4K]2 years ago

3 0

Answer:

B) $(2, 1)$

Step-by-step explanation:

−x + 3 = 2x - 3

-2x - 2x

______________

−3x + 3 = −3

- 3 - 3

____________

−3x = −6

___ ___

−3 −3

$x = 2$ [Plug this back into both equations above to get the y-coordinate of 1]; $1 = y$

I am joyous to assist you anytime.

You might be interested in

A baker buys 7 cups of strawberries to make a cheesecake and 8 equal batches of muffins. The baker uses 3 cups of strawberries t

Mnenie [13.5K]

1/2 because the baker has 4 cups of strawberries after they make the cheesecake and the 4 cups divided between the 8 batches would equal 1/2 cup of strawberries in each batch

6 0

1 year ago

What is the answer ?

pentagon [3]

Answer:

in order for your fraction to equal 3 you need to have 9/3 which will equal 3. so what minus 1 will get you 9? 10 will. x=10

10-1/3

9/3

3=3

5 0

2 years ago

Read 2 more answers

suppose X and Y are independent random variables, both with normal distributions. If X has a mean of 45 with a standard deviatio

djyliett [7]

Answer:

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

$\mu_X = 45, \sigma_X = 4, \mu_Y = 35, \sigma_Y = 3$

What is the probability that a randomly generated value of X is greater than a randomly generated value of Y

This means that the subtraction of X by Y has to be positive.

When we subtract two normal variables, the mean is the subtraction of their means, and the standard deviation is the square root of the sum of their variances. So

$\mu = \mu_X - \mu_Y = 45 - 35 = 0$

$\sigma = \sqrt{\sigma_X^2+\sigma_Y^2} = \sqrt{25} = 5$

We want to find P(X > 0), that is, 1 subtracted by the pvalue of Z when X = 0. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{0 - 10}{5}$

$Z = -2$

$Z = -2$ has a pvalue of 0.0228

1 - 0.0228 = 0.9772

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

4 0

2 years ago

Can you please help me I give you extra points ?

kkurt [141]

Answer: 16 centimeters------nice computer by the way

Step-by-step explanation: addition

6 0

1 year ago

Read 2 more answers

What is the volume of the cone to the nearest tenth?

Kisachek [45]

Answer:

366.5cm³

Step-by-step explanation:

1. Determine the height and radius of cone.

2. Using the formula for the volume of a cone input where there is an h and r.

3.Where it says Area of base, it is talking about the circular base and that you need to find its area. (π×r²), you already have the radius so you put it in the formula and solve (π×5²)

4. Once you have the area of the base you can now completely solve. Multiply ⅓×(78.54)×14

8 0

2 years ago