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Alla [95]
4 years ago
11

Someone plz help and include an explanation plz cuz I’m a lil confused

Mathematics
2 answers:
andreyandreev [35.5K]4 years ago
8 0
The formula for this qns is y1-y2 over x2-x1 so assume the scale is 1 to1
rodikova [14]4 years ago
4 0

Answer:

-\frac{5}{4}

Step-by-step explanation:

The slope of a graph is the rate of change between two points. To find the slope in a graph you use: \frac{rise}{run}=\frac{y}{x}

The y goes down by 5 and right by 4 so it'll be -\frac{5}{4}

Also: If the line is going down the slope is always negative and vise versa

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What is the solution to the linear equation? 2.8y+6+0.2y=5y-14
PtichkaEL [24]
2.8y+6+0.2y=5y-14
Combine like terms
3y+6=5y-14
Subtract 6 from both sides
3y=5y-20
Subtract 5y from both sides
-2y=-20
Divide both sides by -2

Y=10
5 0
3 years ago
Read 2 more answers
Find the number of integral solutions of x+y +z = 12, where −3 ≤ x ≤ 4, 2 ≤ y ≤ 11, and<br> z ≥ 3.
SashulF [63]

There are 59 integer solutions

Such questions are best solved by writing cases and calculating the total number of cases. So beginning with

1)  x = -3. The possible combinations are as follows:-

-3 2 13

-3 3 12

-3 4 11

-3 5 10

-3 6 9

-3 7 8

-3 8 7

-3 9 6

-3 10 5

-3 11 4

10 combinations

2) x = -2

-2 2 12

through

-2 11 3

10 combinations

3) x = -1

-1 2 11

through

-1 10 3

9 combinations

4) x = 0

0 2 10

through

0 9 3

8 combinations

as we can see from the pattern at x =1  we get 7 combinations, at x =2  we get 6 combinations, at x=3 we get 5 combinations and at x =4  we get 5 combinations.

Thus total number of combinations 4+5+6+7+8+9+10+10 = 59 integer solution.

Learn more about combinations here :

brainly.com/question/13387529

#SPJ1

5 0
2 years ago
Subtract polynomials (intro)
ELEN [110]

Answer:

The result in standard form is:

\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t

Step-by-step explanation:

Given the polynomials

  • -5t+ 4t² – t
  • 8t² + t

subtracting 8t² + t from -5t+ 4t² – t.

\left(-5t+\:4t^2\:-\:t\right)\:-\:\left(8t^2\:+\:t\right)

Remove parenthese: (-a) = -a

i.e. - (8t² + t) = 8t² - t

so the expression becomes

=-5t+4t^2-t-8t^2-t        

grouping the like terms

=4t^2-8t^2-5t-t-t

Add similar elements: 4t² - 8t² = -4t²

=-4t^2-5t-t-t

Add similar elements: -5t - t - t = -7t

=-4t^2-7t

Therefore, the result in standard form is:

\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t

4 0
3 years ago
A bag contains eleven equally sized marbles, which are numbered. Two marbles are chosen at random and replaced after each select
Digiron [165]

Answer:

B. \frac{24}{121}.

Step-by-step explanation:

Total number of marbles = 11.

Since, after choosing the first marble, we are putting it back and then the second marble is chosen.

As, there are 4 shaded marbles.

So, the probability of getting the first marble shaded = \frac{\binom{4}{1}}{\binom{11}{1}} = \frac{4}{11}

Also, there are 6 odd labeled marbles.

So, the probability of getting the second marble being odd labeled = \frac{\binom{6}{1}}{\binom{11}{1}} = \frac{6}{11}

So, the probability of getting the first marble shaded and second marble labeled odd = \frac{4}{11}\times \frac{6}{11} = \frac{24}{121}.

Hence, the required probability is \frac{24}{121}.

4 0
3 years ago
Read 2 more answers
Write an equation using the information below
vladimir2022 [97]
This is easy, hint, you multiply ;-;
6 0
4 years ago
Read 2 more answers
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