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3 years ago

A rule was used to create this list of points. Is the rule a function or not a function?

Mathematics

1 answer:

posledela3 years ago

6 0

Answer:

As we know, a function can't have the same x coordinate but can have the same y coordinate.

I found -6 twice for the x coordinate.

If we were to graph this, a function would only have 1 point on each VERTICAL line, not 2

Therefore, it is not a function

<h2><u>plzzz give brainliest</u></h2>

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Use the commutative law of MULTIPLICATION to write an equivalent expression.<br><br> 9(x+5)

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9x+45
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3 years ago

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in a triangle TRY measure angle R is 3 times measure angle T and measure angle Y is 15 more than measure angle T find the measur

r-ruslan [8.4K]

Answer:

Angle R is 99 degree

Angle Y=48 degrees

Angle T is 33 degrees

Step-by-step explanation:

Let angle T be x

Angle R will be 3x

Angle Y will be x+15

Total=x+3x+x+15=5x+15

5x+15=180

5x=165

x=165/5=33

Therefore, angle T is 33 degrees, angle Y=15+33=48 degrees and angle R=33*3=99 degrees

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3 years ago

Santa Claus can buy 3 reindeer and a sleigh for $800. If the sleigh cost $230, how much did each reindeer cost? Define the varia

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Answer:

$190

Step-by-step explanation:

800-230=570

570÷3=190

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3 years ago

A charity received a donation of 25.6 million. If this represents 54% of the charity‘s donated funds, what is the total amount o

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Answer:

Step-by-step explanation:

100%-54%=46%

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25,600,000+11,776,000=

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3 years ago

Solving Rational Inequalities and use sign diagram to sketch the graph. Image attached for better understanding.

hjlf

Answer:

x ∈ (-∞ , -2) ∪ (1, 3)

Step-by-step explanation:

The expression is already factored. Note that for the polynomial that appears in the numerator $(x-3)(x + 2)$ there are 2 roots:

$x = 3\\x = -2$

For the polynomial that appears in the denominator there is 1 root:

$x = 1$

Note that $x = 1$ does not belong to the domain of f(x) because it zeroes the denominator of the function and the division between zero is not defined.

With these three roots we do the study of signs to find out when $f(x)$

Observe the attached image

Note that:

$(x-3)$ when $x$

$(x + 2)$ when $x$

$(x-1)$ when $x$

Finally, we have the solution:

x ∈ (-∞ , -2) ∪ (1, 3)

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3 years ago