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3 years ago

What two numbers add up to -13 and multiply to 36?

Mathematics

2 answers:

vodka [1.7K]3 years ago

6 0

-4 and -9 is the correct answer

Anna [14]3 years ago

6 0

-4 and -9
When you are multiplying negative numbers, two -s makes a positive, and 4 x 9 = 36.
Also, (-4) + (-9) = -13, Because a + and a - makes a negative, so it is saying -4 - 9. If you go down 9 on a number line from -4, you get to -13

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Complete the recursive formula of the geometric sequence -0.56\,,-5.6\,,-56\,,-560,...−0.56,−5.6,−56,−560,...Minus, 0, point, 56

pentagon [3]

Answer:

The recursive formula is:

Cn = 10C(n-1)

Step-by-step explanation:

Given the geometric sequence.

-0.56, -5.6, -56, -560, ...

The common ratio is

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The recursive formula is easily

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That is a number is ten times the preceding number.

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3 years ago

Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

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Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

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Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

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Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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get

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