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Brilliant_brown [7]
3 years ago
14

8(-9-5x)+4b X=9 B=-9

Mathematics
1 answer:
True [87]3 years ago
6 0
-468
Explanation: Substitute in the numbers for the variables presented. I’ve shown it step-by-step in the photo below.

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Entomologist heinz kaefer has a colony of bongo spiders in his lab. there are 1000 adult spiders in the colony, and their weight
Vera_Pavlovna [14]
We have to find the probability N(11,2)>12, wherein N(11,2)
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0.3*1000=300.

There is 300 <span>spiders  in the colony which weigh more than 12 grams</span>
6 0
3 years ago
Read 2 more answers
In what year was her grandpa lopez twice as old as her dad?show how you know
RoseWind [281]
So,

We are trying to figure out when Grandpa Lopez's age was twice that of Dad.

Let x represent the number of years before/after when G. Lopez's age was twice that of Dad.

66 + x = 2(37 + x)

Distribute.
66 + x = 74 + 2x

Subtract x from both sides.
66 = 74 + x

Subtract 74 from both sides.
-8 = x

So 8 years ago, G. Lopez was twice as old as Dad.  Let's check that.

66 - 8 = 58

37 = 8 = 29

29 * 2 = 58
58 = 58

It checks.
8 0
3 years ago
The regular price of a calculator is $49.95 before taxes. It goes on sale at 20% below the regular price. Before taxes are added
Kay [80]

Answer:

$39.96

Step-by-step explanation:

Since it is 20% off, we would multiply by .8, as we subtract the .2 (20%) off of the price.

$49.95 x 0.8 = $39.96

6 0
3 years ago
Need help on this question!
Anestetic [448]

Answer:

1 N 3

Step-by-step explanation:

8 0
3 years ago
10th grade geometry ASAP PLZ HELP
iogann1982 [59]
Angles in a line = 180
180-165 = 15 degrees

15 + 45 + ? = 180
60 + ? = 180
? = 120
7 0
2 years ago
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