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Feliz [49]
2 years ago
10

6x² - 12x + (x-2)=0​

Mathematics
1 answer:
fredd [130]2 years ago
8 0
X,1=-1/6, x,2=2 not sure
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What value of y makes the equation true. y+2.9=11
yawa3891 [41]

Answer:

y = 8.1

Step-by-step explanation:

y+2.9=11

Subtract 2.9 from each side

y+2.9-2.9 = 11-2.9

y =8.1

8 0
3 years ago
Write the radical below in the simplest radical form<br><br> √210 <br><br> Pls show ur work
Anna [14]

Answer:

\sqrt{210}

Step-by-step explanation:

Let's look at the prime factors of 210.

210 = 2 * 3 * 5 * 7

\sqrt{210} = \sqrt{2 \times 3 \times 5 \times 7} = \sqrt{210}

Since no factor appears more than once, this radical cannot be simplified.

3 0
2 years ago
Geometry help what is it will give brainliest
Lapatulllka [165]
For this problem, we can say that corresponding angles are congruent, or the same, this also means that their angle measures have to be the same. Then, our equations for our angles will be vertical angles, which means that they must equal each other. So we would then write our equation as 3x+20=4x+10 or 4x+10=3x+20. Then, to combine like terms, we will subtract 3x from both sides, resulting in x+10=20. Then we will subtract 10 from both sides, resulting in x=10.
5 0
3 years ago
PLEASE HELP ASAP
ladessa [460]
1)An equation in the slope-intercept form is written as

y=mx+by=mx+b

Where m is the slope of the line and b is the y-intercept. You can use this equation to write an equation if you know the slope and the y-intercept.

Example

Find the equation of the line

Choose two points that are on the line

Calculate the slope between the two points

<span><span>m=<span>y2−y1x2−x1</span>=<span><span>(−1)−3</span><span>3−(−3)</span></span>=−46=−23</span><span>m=<span>y2−y1x2−x1</span>=<span><span>(−1)−3</span><span>3−(−3)</span></span>=−46=−23</span></span>

We can find the b-value, the y-intercept, by looking at the graph

b = 1

We've got a value for m and a value for b. This gives us the linear function

<span>y=−23x+1y=−23x+1</span>

In many cases the value of b is not as easily read. In those cases, or if you're uncertain whether the line actually crosses the y-axis in this particular point you can calculate b by solving the equation for b and then substituting x and y with one of your two points.

We can use the example above to illustrate this. We've got the two points (-3, 3) and (3, -1). From these two points we calculated the slope

<span>m=−23m=−23</span>

This gives us the equation

<span>y=−23x+by=−23x+b</span>

From this we can solve the equation for b

<span>b=y+23xb=y+23x</span>

And if we put in the values from our first point (-3, 3) we get

<span><span>b=3+23⋅(−3)=3+(−2)=1</span><span>b=3+23⋅(−3)=3+(−2)=1</span></span>

If we put in this value for b in the equation we get

<span>y=−23x+1y=−23x+1</span>

which is the same equation as we got when we read the y-intercept from the graph.

To summarize how to write a linear equation using the slope-interception form you

Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

Once you've got both m and b you can just put them in the equation at their respective position.

https://www.mathplanet.com/education/algebra-1/formulating-linear-equations/writing-linear-equations.....


2)https://www.cymath.com/answer?q=6x%20%2B%202y%20%3E%204


3)https://www.cymath.com/answer?q=9x%20%E2%80%93%203y%20%3D%2012

4 0
3 years ago
Read 2 more answers
Suppose a university advertises that its average class size is 34 or less. A student organization is concerned that budget cuts
Korolek [52]

Answer:

H0​: μ ≤ 34

H1​: μ > 34

The​ z-test statistic is ≈ 1.8

The critical​ z-score is 1.28

we fail to reject the null hypothesis H0​: μ ≤ 34

Step-by-step explanation:

H0​: μ ≤ 34

H1​: μ > 34

The​ z-test statistic is calculated using the formula:

z=\frac{X-M}{s} where

  • X is the average class size found in the sample (35.6)
  • M is the mean according to the null hypothesis (34)
  • s is the standard deviation for class size (9)

then z= \frac{35.6-34}{9} ≈ 0.18

The critical​ z-score is 1.28 for α=0.10​ (one tailed)

Because the test statistic is less than the critical value, do not reject the null hypothesis.

8 0
3 years ago
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