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Bingel [31]
2 years ago
11

Given that

Mathematics
1 answer:
Mekhanik [1.2K]2 years ago
8 0

Step-by-step explanation:

R = 3x + 9y

When y = 6 and R = 7

7 = 3x + 9.6

7 = 3x + 54

7 - 54 = 3x

-47 = 3x

x = -47/3

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Drew's car weighs 1,344 kilograms. His car weighs 7 times as much as his motorcycle. How many grams does his motorcycle weigh? N
Alona [7]

Answer:

192,000 grams

Step-by-step explanation:

turn 1,344 kilograms to grams, which gives u 1344000 grams

divide 1344000 by 7 and you get 192,000 grams. Hope this helped :)

7 0
3 years ago
A normal population has a mean of 12.2 and a standard deviation of 2.5. compute the z value associated with 14.3. what proportio
Citrus2011 [14]
The z-score associated with 14.3 is 0.84.  0.2995 of the population is between 12.2 and 14.3.  0.1894 of the population is less than 10.0.

The formula for a z-score is

z=(X-μ)/σ

With our data, we have:
z=(14.3-12.2)/2.5=0.84

The z-score associated with the mean is 0.5.  To find the proportion of the population between the mean and 14.3, subtract 0.7995 (the proportion of population below the z-score of 0.84, using http://www.z-table.com) and 0.5:

0.7995 - 0.5 = 0.2995.

The z-score for 10.0 is

(10.0-12.2)/2.5 = -0.88.  The proportion of the population less than this is 0.1894.
5 0
3 years ago
F(x) = 2x^3 + 8
riadik2000 [5.3K]

Answer:32-10x

Step-by-step explanation:

7 0
3 years ago
Help plzzz will give brainliest
lawyer [7]

Answer:

the answer is C hope this helps you

7 0
3 years ago
Read 2 more answers
You are drawing two cards, without replacement, from a standard deck of 52 cards. What is the
Serga [27]

Answer:

Dear student,

Answer to your query is provided below

Probability of drawing a 2 at first is (4/52) = (1/13)

Probability of drawing a face card in second try without replacement = 12/51

Step-by-step explanation:

Total no. Of cards = 52

Total no. Of cards of 2 = 4

Prob. Of drawing 2 = 4/52

Total no. Of face card = 12

Total no.of cards left in deck = 51

Prob. Of drawing face card = 12/51

5 0
3 years ago
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