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mestny [16]
3 years ago
10

Image point N'(12, -6) was dilated from the pre-image point N(4, -2). What was the scale factor used?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0
The scale factor's 3 since 12 and 4 can be divided by 3 and -6 and -2 can also be divided by 3.
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136.08 hope this  helps
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3 years ago
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Before 1918, approximately 40% of the wolves in a region were male, and 60% were female. However, cattle ranchers in this area h
Goshia [24]

Answer:

P(≥ 7 males) = 0.0548

Step-by-step explanation:

This is a binomial probability distribution problem.

We are told that Before 1918;

P(male) = 40% = 0.4

P(female) = 60% = 0.6

n = 10

Thus;probability that 7 or more were male is;

P(≥ 7 males) = P(7) + P(8) + P(9) + P(10)

Now, binomial probability formula is;

P(x) = [n!/((n - x)! × x!)] × p^(x) × q^(n - x)

Now, p = 0.4 and q = 0.6.

Also, n = 10

Thus;

P(7) = [10!/((10 - 7)! × 7!)] × 0.4^(7) × 0.6^(10 - 7)

P(7) = 0.0425

P(8) = [10!/((10 - 8)! × 8!)] × 0.4^(8) × 0.6^(10 - 8)

P(8) = 0.0106

P(9) = [10!/((10 - 9)! × 9!)] × 0.4^(9) × 0.6^(10 - 9)

P(9) = 0.0016

P(10) = [10!/((10 - 10)! × 10!)] × 0.4^(10) × 0.6^(10 - 10)

P(10) = 0.0001

Thus;

P(≥ 7 males) = 0.0425 + 0.0106 + 0.0016 + 0.0001 = 0.0548

3 0
3 years ago
SOMEONE HELP ME ON THESE QUESTIONS
dem82 [27]

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2.)  Seventeen more(addition) than seven times(multiplication) a number j is(=) 87.

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17 + 7j = 87  

3.)   n = number of calls

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4.)     s = the number of students

40 + 30s = 220

[Tutor charges $40 plus $30 per student(s), and the total charge was $220]

4 0
3 years ago
A recipe calls for 5/8 cups butter. Angie wants to triple the recipe but she has only 1 1/4 cups of butter
Alisiya [41]
The recipe calls for 5/8 cups butter and Angie wants to triple the recipe.

Therefore, if Angie is tripling the recipe, she is multiplying all of the ingredients in the recipe by 3.

So for the butter, this would be:

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Next, we should turn this improper fraction into a mixed number so that we can compare it to the amount of butter that Angie has.

15/8 = 1 7/8 

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A cleaner recommends mixing 1½ cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water in simplest form
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1.5 cleaner / 12 cups of water
or
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1.5 divided by 1.5 is 1
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So the ratio of cleaner to water is 1:8 in its simplest form or 1 part cleaner to 8 parts water.

Hope this helps!!  :)
4 0
3 years ago
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