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2 years ago

I WILL GIVE BRAINLESS IF YOU HELP ME PLZ S.O.S I HAVE MATH

Mathematics

1 answer:

Nesterboy [21]2 years ago

8 0

A, first find the slope of the line shown, which is 2x+1
slope is rise/over run, with the y-intercept being on 1

When looking at rate of change, it's really just telling you to look at the slope and how steep it is. The more steeper it is, the higher the rate of change. (as close as it is to being a vertical line). Since the slope here is 2. Look for one that has a slope greater than 2, which is 3. Therefore the answer

A. 3x-1

Hope this helps!

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Find the value of the expression (5-3) x 2+6

Assoli18 [71]

Answer:

Its value is 10.

Step-by-step explanation:

Use order of operations, PEMDAS.

The parentheses are worked out first:-

(5 - 3) X 2 + 6

= 2 X 2 + 6

Now the multiplication:-

= 4 + 6

= 10 (answer).

5 0

3 years ago

Solve 2(4x-3) = 5(2x-5)

Anna71 [15]

Answer:

x = 19/2 or 9.5

Step-by-step explanation:

Hello!

We can distribute the parenthesis and solve.

<h3>Solve</h3>

2(4x - 3) = 5(2x - 5)
2(4x) - 2(3) = 5(2x) - 5(5)
8x - 6 = 10x - 25

Move all x terms to one side and integer terms to the other

8x - 6 = 10x - 25
-6 + 25 = 10x - 8x
19 = 2x
x = 19/2
x = 9.5

5 0

1 year ago

Which ordered pair is the solution to the system of equations?

Virty [35]

-1*/x+3y=12
<span>-4x+3y=-3

-x-3y= -12
-4x+3y= -3
+-------------------
-5x= -15
x=3

</span><span>x+3y=12
</span><span>
3+3y=12

3y=9 y=3

(x,y)=(3,3)</span>

5 0

2 years ago

Read 2 more answers

I NEED ANSWER AND EXPLANATION BEFORE 3:30 EST PLS

Y_Kistochka [10]

Answer:

cyl=176

Step-by-step explanation:

3 0

2 years ago

PREVIOUS ANSWERS MY NOTES Calls to a customer service center last on average 2.8 minutes with a standard deviation of 1.4 minute

rjkz [21]

Answer:

The expected total amount of time in minutes the operator will spend on the calls each day is of 210 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

n-values of a normal variable:

For the sum of a sample of n values, the mean is of $M = n\mu$ and the standard deviation is of $s = \sigma\sqrt{n}$