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Vesna [10]
2 years ago
12

BRAINIEST TO WHOEVER RIGHT

Mathematics
2 answers:
ICE Princess25 [194]2 years ago
7 0
11 i think:) hoped this helped
Sliva [168]2 years ago
3 0

Answer:

11

Step-by-step explanation:

You might be interested in
if alpha and beta are zeros of the polynomial x² - 6 X + k find k such that (alpha+beta)²-2alha beta =40​
lidiya [134]

Answer:

k = - 2

Step-by-step explanation:

Given α and β are the zeros of x² - 6x + k = 0 , with

a = 1, b = - 6 and c = k , then

α + β = - \frac{b}{a} = - \frac{-6}{1} = 6

αβ = \frac{c}{a} = \frac{k}{1} = k

Then solving

(α + β)² - 2αβ = 40

6² - 2k = 40

36 - 2k = 40 ( subtract 36 from both sides )

- 2k = 4 ( divide both sides by - 2 )

k = - 2

8 0
2 years ago
. log 3x4<br> Expand each expression
valentina_108 [34]

Answer:

12

Step-by-step explanation:

because 3x4 is 12

6 0
3 years ago
Which of the following graphs represent the equation y=3x+2
seropon [69]

Answer:You haven't attached a picture but this is what your line should look like

Step-by-step explanation:

For this equation you simply have to graph it.

First, you have to remember that these equations follow a formula: y=mx+b. m is the slope of you line and b is the y-intercept.

Next, you need to graph it. First, graph your b, in this case 2. You would go up 2 on you graph (graph (0,2)). Then, you would graph your slope which is 3.

Now, remember that slope equals y/x, so think of the number 3 being like 3/1. You would start at (0,2) and go up 3 points in the graph, then over 1 point (graph where you end up). You repeat that from each new point you make until you have enough points to create a straight line.

Hope this helps a bit,

Flips

3 0
3 years ago
Read 2 more answers
I need help with this problem.
DiKsa [7]

Answer:

7 cans will cost $7.29

Step-by-step explanation:

Set up a Proportion: \frac{24}{25}=\frac{7}{x}

Cross multiply: 24x=175

Solve for X: x=7.29

5 0
2 years ago
Which of the following is the slope of the line passing through each pair of points?
abruzzese [7]
Answer:

The slope of the line is = -1

Explanation:

To find the slope use the slope formula:

Y1-Y2/X1-X2

So, -3-(-5)/-9-(-7) = -1
3 0
3 years ago
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