The mean of a, b, c, and d is 9 and the mean of a, b, c,

1 answer:

4 0

mean of e and f is 18

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romanna [79]

Answer:

(d − 3) (d + 3) (d² + 9)

Step-by-step explanation:

d⁴ − 81

Factor using difference of squares.

(d² − 9) (d² + 9)

Factor using difference of squares again.

(d − 3) (d + 3) (d² + 9)

5 0

2 years ago

Anna007 [38]

$\frac{7}{8} - \frac{1}{2}$
$= \frac{7}{8} - \frac{4}{8}$
$= \frac{3}{8}$

3 0

2 years ago

Oksana_A [137]

As expression it will look like (4y)^4 which is same as 256y^4.

6 0

2 years ago

Ludmilka [50]

Answer:

1. x = 2

2. x = -2

3 x = 1

Step-by-step explanation:

Make x the subjects and work from there

3 0

2 years ago

kap26 [50]

First

Mutliply -2 and -3

Then

Add 4+6+5

Finally

4+6=10

And then

10+5=15

5 0

2 years ago