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Artemon [7]
3 years ago
5

A line passes through the point (3,1) and has a slope of 2. what is the y-intercept?

Mathematics
2 answers:
Valentin [98]3 years ago
7 0
The y intercept would be -5
Papessa [141]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

First, we can plug all the given values into the equation y=mx+b. This is called slope-intercept form. m is the slope and b is the y-intercept. To find the y-intercept, we solve for b.

y=mx+b

1=2(3)+b

1=6+b

Subtract both sides by 6

1-6=6+b-6

-5=b

Therefore, the y-intercept is -5.

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How do we just know it’s grams or kilograms? because my son doesn’t know what to say as do I. Frankly it’s confusing please help
Fudgin [204]

Answer and Step-by-step explanation:

If you see a number or fraction or anything we g beside it, such as:

4.2g

6g

\frac{7}{6} g

^ That is grams

If you see anything with kg next to a number, fraction, e.t.c, such as

\frac{1}{2} kg

5kg

6.2kg

^ That is kilograms

4 0
4 years ago
Read 2 more answers
sume that the change in daily closing prices for stocks on the New York Stock Exchange is a random variable that is normally dis
Darina [25.2K]

Answer:

0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.

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.

Normally distributed with a mean of $0.35 and a standard deviation of $0.33.

This means that \mu = 0.35, \sigma = 0.33.

What is the probability that a randomly selected stock will close up $0.75 or more?

This is 1 subtracted by the p-value of Z when X = 0.75. So

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

Z = \frac{0.75 - 0.35}{0.33}

Z = 1.21

Z = 1.21 has a p-value of 0.8869.

1 - 0.8869 = 0.1131

0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.

4 0
3 years ago
Please help asap I attached the question!!!!
pickupchik [31]
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. if the decimal is being moved to the left, the exponent will be positive. all i really did was subtract the numbers without the exponents. but this is useless right now so the answer is: 2.1*10^7
Basically: 2.1 times 10 to the power of 7


3 0
3 years ago
The rule for the dilation of quadrilateral QRST to the image Q'R'S'T' is DO,0.5(x, y) → (0.5x, 0.5y). What are the coordinates o
OLga [1]
Applying the rule for dilation, we will multiply the scale factor to its coordinates. Having Q (0,2) and DO 0.5(x.y), the coordinates of Q' will be:
x = (.5)(0) = 0y = (.5)(2) = 1
Therefore coordinates of Q' is (0,1) 
*Having a scale factor of >1, the figure is said to be reduced.


7 0
4 years ago
Read 2 more answers
Help plz.....<br> 64 divide 2 x 8 + 12
Zanzabum

Answer:

268

Step-by-step explanation:

64 divide 2 times 8 plus 12

32 times 8 plus 12

32 times 8

256 plus 12

268


6 0
3 years ago
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