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3 years ago

QUICK?!! For each ordered pair, determine whether it is a solution to 3x-5y=-13

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

7 0

Answer: (9,8) is Yes, (-8,2) is No, (-6,-1) is True and the last one is No! Hope that helps!

Step-by-step explanation: Use the desmos scientific calculator!

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3 years ago

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Select the two binomials that are factors of this trinomial x^20 - x - 20

Mashcka [7]

Answer:

$(x-5)(x+4)$

Step-by-step explanation:

To factor the equation, break it into two binomials which multiply to make the equation. To write these binomials (x+a)(x+b), find factors which multiply to -20 and add to -1 for a and b.

20: 1, 2, 4, 5, 10, 20

-5+4 = -1

$x^2-x-20 = (x-5)(x+4)$

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3 years ago

What is the cot in simplest fraction form????<br> Please help been stuck for 30 minutes!!

Fantom [35]

Answer:

65/72

Step-by-step explanation:

cot is simply cosine over sine or the tangant flipped

the cos (c)=65/97

sin (c) = 72/97

cot would be (65/97)/(72/97)

How do you divide fractions? By multiplying the reciprocal!

cot would be 65/97 * 97/72

the 97s cross out.

65/72

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3 years ago

Which of the following is the graph of y=<br> -x-3?

Anastaziya [24]

Step-by-step explanation:

I have answered ur question

3 0

3 years ago

Brainliest, could you help me with the scientific notation

Minchanka [31]

Answer:

1. 2.13 x 10^-1

2. 8.9 x 10^-2

3. 5.7 x 10^-5

4. 2.84 x 10^4

5. 8.1 x 10^-5

6. 2.65 x 10-5

Step-by-step explanation:

Good luck! Brainliest is always appreciated!

Sincerely,

Philip

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2 years ago