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3 years ago

9/10 of Allien races think invading earth is a bad idea . What percent of alien races think invading earth is a bad idea

Mathematics

2 answers:

beks73 [17]3 years ago

7 0

Answer:

90%

Step-by-step explanation:

All percents are made out of 100, so if you can make the bottom number of the fraction (denominator) equal 100, then we can make it into a percent. If you multiply the top and bottom numbers by the same number (10 in this case), which technically equals one, then you get 90/100. This shows that 90% of aliens think that invading earth is a bad idea.

White raven [17]3 years ago

6 0

90% of alien races think invading earth is a bad idea.

9 divided by 10 = 0.9

0.9 * 100 = 90

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Andreas93 [3]

8 I believe if not use the app so socratic

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3 years ago

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Convert to the product of multiplication<br>a^2-b^2-4b-4

kirill [66]

$a^2-b^2-4b-4$ in form of multiplication is $(a-b)(a+b)-4(b+1)$ .

<u>Step-by-step explanation:</u>

We know that factors are the numbers that are being multiplied together . As 6532*7 = 45724 .Here 6532 & 7 are the factors and 45724 is product of the factors .

Here , we need to convert to the product of multiplication

a^2-b^2-4b-4 or , $a^2-b^2-4b-4$ :

⇒ $a^2-b^2-4b-4$

We know by identity that , $p^2-q^2 = (p-q)(p+q)$

⇒ $(a-b)(a+b)-4b-4$

Taking common term out as -4 :

⇒ $(a-b)(a+b)-4(b+1)$

Therefore , $a^2-b^2-4b-4$ in form of multiplication is $(a-b)(a+b)-4(b+1)$ .

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3 years ago

Suppose that adult women in China have heights that are normally distributed with a mean = 155 centimeters and a standard deviat

mezya [45]

Answer:

84.134%

Step-by-step explanation:

We solve this question using the z score formula.

The formula for calculating a z-score is z = (x-μ)/σ

where

x is the raw score

μ is the population mean

σ is the population standard deviation.

We are were asked in the question that:

Suppose that adult women in China have heights that are normally distributed with a

mean = 155 centimeters

standard deviation = 8 centimeters. Of the Chinese women, what percent are shorter than 163cm?

Using the z score formula

z = (x-μ)/σ

z = (163 - 155)/8

z = 8/8

z = 1

Determining the Probability value from Z-Table:

P(x ≤ 163) = P(x < 163)

= 0.84134

Converting to percentage

= 0.84134 × 100%

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4 years ago

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seropon [69]

Answer:You haven't attached a picture but this is what your line should look like

Step-by-step explanation:

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First, you have to remember that these equations follow a formula: y=mx+b. m is the slope of you line and b is the y-intercept.

Next, you need to graph it. First, graph your b, in this case 2. You would go up 2 on you graph (graph (0,2)). Then, you would graph your slope which is 3.

Now, remember that slope equals y/x, so think of the number 3 being like 3/1. You would start at (0,2) and go up 3 points in the graph, then over 1 point (graph where you end up). You repeat that from each new point you make until you have enough points to create a straight line.

Hope this helps a bit,

Flips

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4 years ago

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ArbitrLikvidat [17]

Answer:

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Step-by-step explanation:

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3 years ago