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Tom [10]
3 years ago
13

Solve this system of equations using the graphing method please y=-1/3x+5 y=-2x

Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0
Graph the equations and locate the intersection.
(-3,6)

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If a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 8
kolezko [41]
The answer is C. 64 teachers. 

14 x 64= 896 
so 1 x 64= 64
4 0
3 years ago
Read 2 more answers
In which quadrant does 1/3 and 2 1/3 lie on?
quester [9]

Answer:

Quadrant 1

Step-by-step explanation:

The co-ordinates given match up exactly to co-ordinate 1 due to all the numbers given being positive.  

There are 4 quadrants. Quadrant 1, 2, 3, and 4.

4 0
3 years ago
Suppose you're given the formula R=s+2t and s is three times greater than t, how could you rewrite the formula
sattari [20]

Answer:

R = 5t

Step-by-step explanation:

given s is three times t then s = 3t and

R = 3t + 2t = 5t


4 0
3 years ago
Consider a paint-drying situation in which drying time for a test specimen is normally distributed with σ = 7. The hypotheses H0
pshichka [43]

Answer:

(a) The value \bar x = 72.3 is 1.21 standard deviations below the null value of <em>μ</em>.

(b) The mean drying time of paint is not less than 74.

Step-by-step explanation:

The hypothesis for the single mean test is:

<em>H₀</em>: <em>μ</em> = 74 vs. <em>Hₐ</em>: μ < 74.

The information provided is:

<em>σ</em> = 7

<em>n</em> = 25

As the population standard deviation is known, we will use a <em>z</em>-test for single mean.

(a)

The <em>z</em>-score is a Normal distribution with mean 0 and variance 1. It is also defined as the number of standard deviations a raw score is from the mean.

The <em>z</em>-score for sample mean is given by:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}

If \bar x = 72.3 compute the corresponding <em>z</em>-score as follows:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}

  =\frac{72.3-74}{7/\sqrt{25}}\\=-1.21

Thus, the value \bar x = 72.3 is 1.21 standard deviations below the null value of <em>μ</em>.

(b)

So the test statistic is, <em>z</em> = -1.21.

Compute the <em>p</em>-value of the test as follows:

p-value=P(Z

*Use a <em>z</em>-table.

The decision rule says to, reject the null hypothesis if the <em>p</em>-value is less than the significance level <em>α</em> = 0.01 and vice-versa.

<em>p</em>-value = 0.1131 < <em>α</em> = 0.01

The null hypothesis was failed to be rejected.

Thus, the mean drying time of paint is not less than 74.

6 0
3 years ago
What type of angle are 2 and 6?
horsena [70]

Answer:

CORRESPONDING ANGLES

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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