3 years ago

Pleasee, whats the substitution of 9x+2y=-3 and -9x-y=-3

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

4 0

Answer: (1,-6)

Step-by-step explanation:

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Can someone help me convert each of these into improper fractions?

mariarad [96]

Answer:

$(\frac{6}{1})(\frac{11}{4} )$

$(-\frac{10}{3})(-\frac{17}{5})$

$(-\frac{9}{2} )(\frac{26}{3} )$

$(\frac{11}{6})(-\frac{9}{1} )$

Step-by-step explanation:

I hope this help you

8 0

2 years ago

a centroid separates a median into two segments. which of the following is the ratio of the length of the shorter segment to the

olga2289 [7]

The answer is 2:1.

The centroid separates the median, or the point from the midpoint of a side of a triangle with its opposite angle, at a ratio of 2:1, meaning that one segment is 1/3 the length of the median and the other segment is 2/3 the length of the median.

3 0

3 years ago

A triangle has sides 12cm, 9cm and 15cm. Is the triangle right-angled? Justify your answer

marusya05 [52]

Answer:

yes

Step-by-step explanation:

Yes this triangle is right angled and can be justified using the Pythagorean theorem. The theorem states that: $a^{2} +b^{2} = c^{2}$ . Substitute using the given values: