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GaryK [48]
3 years ago
9

PLEASE HELP... What do you do when none of the variables cancel out while solving systems by elimination?

Mathematics
1 answer:
Vitek1552 [10]3 years ago
3 0

Answer:

multiply one or both of the equations until a variable can cancel out

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In ANOVA analyses, when the null hypothesis is rejected, we can test for differences between treatment means by ________. Group
nikklg [1K]

Answer:

When conducting an analysis of variance analysis on a set of samples and the null hypothesis is rejected, we can test for the difference between treatment can be tested with the aid of a t-test. This is employed when 2 related groups are involved. Independent sample, paired sample or one-sample t-test can be conducted.

Step-by-step explanation:

A t-test is a test statistic used to make inferences that determine the differences that exist statistically between 2 related groups. It tells us if the 2 groups tested are from the same population. There are 3 types of t-test namely independent sample t-test, paired-sample t-test and one-sample t-test

5 0
3 years ago
(x^3+x^2-9x-6)÷(x^2-9) using long division? How would I solve?
GarryVolchara [31]
The answer is (x + 1) + 3/(x^2-9)
6 0
3 years ago
Helppppp plssss I’ll make brainliest
MrMuchimi

Answer:

C. 3x=21

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Step-by-step explanation:

6 0
3 years ago
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The pressure at sea level is 11 atmosphere and increases at a constant rate as depth increases. When Sydney dives to a depth of
Liono4ka [1.6K]

Answer:

The function p(x) = 0.1x+1 ,   where  x is the depth in meters.

Step-by-step explanation:

As per the statement: The pressure at sea level is 1 atmosphere and increases at a constant rate as depth increases.

Then, we have the two points i,e (0, 1) and (23, 3.3).

An equation of the line is in the form of y=mx+b where m is the slope or rate of the line and b is the y-intercept.

Let x represents the depth in meters and p(x)= y represents the pressure in atmosphere.

Calculate slope of the line:

Slope of line(m) is given by:

m = \frac{y_2-y_1}{x_2-x_1}

Substitute the given point we have;

m = \frac{3.3-1}{23-0} = \frac{2.3}{23} = 0.1

Then, our equation of line become:

y = 0.1x + b                           .....[1]

To solve for b;

Substitute the point (0, 1)  in [1];

1 = 0.1(0)+b

1 = b

Our equation for this line become: y = 0.1x +1

Now, we write this for x as a function of p,

i.e, p(x) = 0.1x + 1

Then, the function formula become;

p(x) = 0.1x+1 where x is the depth in meters.

6 0
3 years ago
5(x + 9) + 53 = 14 − 6x
denis-greek [22]

Answer:

x = -84/11

Step-by-step explanation:

Hope it's right

6 0
3 years ago
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