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3 years ago

What is the gradient of the graph shown?

Mathematics

2 answers:

sammy [17]3 years ago

5 0

Answer:

-1/2

Because, for every one square, the line goes down by 1/2.

Debora [2.8K]3 years ago

5 0

Answer:

- 0.5

Step-by-step explanation:

To find the gradient of a line,

divide the value of decrease by the value across.

So, count across from the extreme left toll the extreme right = 13

Where you completed in the extreme right, you have to count down till you reach the other end of the line = 6.5

Now, you divide: 6.5 divided by 13 = 0.5

Since we counted down, it is negative = -0.5

Please mark brainiest

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Can someone please help, ty!

svet-max [94.6K]

Answer: function

Step-by-step explanation:

The input can't repeat but the output can.

8 0

3 years ago

Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without replacement to select a sample o

lozanna [386]

Answer:

$\dfrac{2}{3}$

Step-by-step explanation:

Given that:

The number of observations is:

6, 10, 12

If we are to use a simple random sampling without replacement, then we will have:

(6,10) (6,12) (10,12)

Here;

the sample size n = 2

The population size N = 3

For (6,10) ; The sample mean = $\dfrac{6+10}{2}$

= $\dfrac{16}{2}$

= 8

For (6,12) ; The sample mean = $\dfrac{6+12}{2}$

= $\dfrac{18}{2}$

= 9

For (10, 12) ; The sample mean = $\dfrac{10+12}{2}$

= $\dfrac{22}{2}$

= 11

The probability distribution of sample mean(x) is:

X 8 9 11

P(X=x) $\dfrac{1}{3}$ $\dfrac{1}{3}$ $\dfrac{1}{3}$

Thus, the probability that the sample mean is larger than 8 is:

P(X> 8) = P(X = 9) + P(X + 11)

P(X> 8) = $\dfrac{1}{3}+\dfrac{1}{3}$

P(X > 8) = $\dfrac{1+1}{3}$

P(X> 8) = $\dfrac{2}{3}$

5 0

3 years ago

Write the standard form of the line that contains a y-intercept of -3 and passes through the point (3, 0). Include your work in

mina [271]

We have two points, (3,0) and (0,-3). So we can find the slope of the line:

m=(y2-y1)/(x2-x1)

m=(-3-0)/(0-3)

m=-3/-3

m=1 so far for the line y=mx+b we have:

y=x+b, b is the y intercept which we were told is -3 so

y=x-3

The above is called the slope-intercept form of a line, y=mx+b, the standard form of a line is ax+by=c, so we need to get both variables on one side of the equation..

y=x-3 subtract x from both sides

-x+y=-3

While the above may be acceptable to some, technically the coefficient of x should be expressed as a positive value, so we should divide the above "solution" by -1 to get:

x-y=3

6 0

3 years ago

Solve:#1 :8 1/5+(4 2/5+ 3 3/10). #2: 2 1/10+ (1 2/7+4 9/10)

nadya68 [22]

#1 815+425+3310=27910(Decimal: 27.9)

#22110+127+4910=617(Decimal: 8.714286)

3 0

3 years ago

3m=2(4+x) solve for x

algol13

Simple.........

3m=2(4+x)

Simplify...

3m=2(4+x)

3m=8+2x

Isolate the variable....

3m=8+2x
-8 -8

3m-8=2x

$\frac{3m-8}{2} = \frac{2x}{2}$

$\frac{3m}{2} -4=x$

Thus, your answer.

4 0

3 years ago

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