3 years ago

.

1 answer:

topjm [15]3 years ago

5 0

Answer:

second equation :

( 20x² — 2xy — 42y² )

Step-by-step explanation:

expand the two brackets.

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slamgirl [31]

your answer should be 5

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3 years ago

Naddika [18.5K]

Answer:

-10, -33, -125, -493, -1965

Step-by-step explanation:

a1 is -10, meaning the first term is -10. therefore the first term of the sequence has to be -10

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4 years ago

babunello [35]

Since 90 is the mean, the z-score of the mean is always 0.

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3 years ago

egoroff_w [7]

Answer: $a=\sqrt{\frac{30}{23} }$

Step-by-step explanation:

$23a^2=30$

Divide by 23

$a^2=\frac{30}{23}$

Extract the square root.

$a=\sqrt{\frac{30}{23} }$

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3 years ago

BartSMP [9]

Answer:

Step-by-step explanation:

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3 years ago