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Digiron [165]
3 years ago
13

Please can someone tell me whether my answer to the question is right? The topic is simultaneous equations.

Mathematics
2 answers:
Pani-rosa [81]3 years ago
8 0
You can easily check your own solutions to simultaneous equation problems.  You've found values for x and y.  Choose either of the original two equations and substitute these x- and y-values into it.  Is the resulting equation then true?  If so, you have a solution.  If not, you don't.
ELEN [110]3 years ago
7 0
X should equal -13.33. Y is correct, 13.33
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Pls help I will mark brailiest​
Elena L [17]

Answer:

c,d,e

Step-by-step explanation:

3 0
3 years ago
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Assume that two fair dice are rolled. First compute P(F) and then P(FIE). Explain why one would expect the
saveliy_v [14]

The probability that a three shows on at least one of the dice is 11/36.

<h3>How to calculate the probability?</h3>

It should be noted that of probability means the likelihood of the occurence of an event.

The probability that a three shows on at least one of the dice will be:

= 11/36

This can be seen from the table that is attached.

The probability that the total is less than 8 will be:

= 21/36

= 7/12

Here, there are 21 places where the total is less than 8.

Learn more about probability on:

brainly.com/question/24756209

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5 0
2 years ago
For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter
Lilit [14]

Answer:

He performed better in the 800 m race

Step-by-step explanation:

Obtain the standardized score for each event :

Zscore = (score - mean) / standard deviation

1000 meter :

Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1

Zscore = (4.1 - 4.5) / 0.75

Zscore = - 0.4 / 0.75 = - 0.5333

800 meter :

Mean = 3.2 ; Standard deviation = 0.4 ; x = 3

Zscore = (3 - 3.2) / 0.4

Zscore = - 0.2 / 0.4 = - 0.5

-0.5 > - 0.533

Hence, he performed better in the 800 m race

3 0
3 years ago
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The table shows the height of a tree for various years after it was planted. Using the line of best fit, how tall would the tree
katrin2010 [14]
The answer is C) 37 feet
6 0
3 years ago
Pls help I need a good grade
aleksley [76]

Answer:

f= -14

Step-by-step explanation:

4 0
3 years ago
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