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pogonyaev
3 years ago
7

What is -0.6(r+0.2) = 1.8 ???

Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

r = -3.2

Step-by-step explanation:

-0.6(r+0.2) = 1.8

Divide by -.6

-0.6/-.6(r+0.2) = 1.8/-.6

r+.2 = -3

Subtract .2 from each side

r+.2-.2 = -3-.2

r = -3.2

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Type in the number that will complete the sentence.
Kipish [7]

Answer:

127 pages.

Step-by-step explanation:

254 divided by 2 equals 127.

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3 years ago
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An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the
inna [77]

Answer: 0.6812

Step-by-step explanation:

Let p be the population proportion of trees are infested by a bark beetle.

As per given: p= 12%= 0.12

Sample size : n= 1000

Number of trees affected in sample = 1000

Sample proportion of trees are infested by a bark beetle. = \hat{p}=\dfrac{127}{1000}=0.127

Now, the z-test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

So, z=\dfrac{0.127-0.12}{\sqrt{\dfrac{0.12\times 0.88}{1000}}}

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4 years ago
Find the product.<br><br> (−x−3)(2x2+5x+8)=
harina [27]

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3 years ago
Quick need the answer!
yawa3891 [41]
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When we have a data set of n points {x₁, x₂, ..., xₙ}

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And the median will be the value in the middle of the data set.

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