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2 years ago

HELP I NEED HELP ASAP

Mathematics

1 answer:

victus00 [196]2 years ago

8 0

Answer: (5, -2)

Step-by-step explanation:

$y= x-7\\2x+y=8$

Substitute x-7 for y in 2nd equation

$2x+ x-7 =8\\3x-7=8\\3x = 15\\x=5$

Solve for y

$y=5-7\\y=-2$

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Write an example of a trinomial that cannot be factored.

OverLord2011 [107]

Answer:

$x^{2} + x + 1$

Step-by-step explanation:

a trinomial that cannot be factored has no real roots.

here is one:

$x^{2} + x + 1$

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2 years ago

Ruby uses 7.2 pints of blue paint and white paint to paint her bedroom walls. 3/4 of this amount is blue paint, and the rest is

Nuetrik [128]

Answer:

1 4/5 or 1.8 pints are white

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2 years ago

The points in the table lie on a line. find the slope of the line.

MatroZZZ [7]

Answer:

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Step-by-step explanation:

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1 year ago

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bagirrra123 [75]

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2 years ago

Read 2 more answers

Suppose 2' is a normally distributed random variable with ft = 10.3 and 0 = 3.8. For the following probability,draw an appropria

TiliK225 [7]

GIVEN

The following values are given:

$\begin{gathered} \mu=10.3 \\ \sigma=3.8 \end{gathered}$

SOLUTION

The z-score for the x values 9 and 14 can be calculated using the formula:

$z=\frac{x-\mu}{\sigma}$

For x = 9:

$\begin{gathered} z=\frac{9-10.3}{3.8} \\ z=-0.34 \end{gathered}$

For x = 14:

$\begin{gathered} z=\frac{14-10.3}{3.8} \\ z=0.97 \end{gathered}$

The probability can be calculated as follows:

$P(9\le x\le14)=Pr(-0.34The region that represents the solution is shown below:Therefore, the probability is given to be:[tex]P(9\le x\le14)=0.4671$

The probability is 0.4671.

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6 months ago