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devlian [24]
2 years ago
5

ASAP HELP TYYY

Mathematics
2 answers:
lara [203]2 years ago
6 0
58.45 x 0.08 = 4.676
4.67<6 round up above 5 round down below
4.68

deff fn [24]2 years ago
5 0
It is $4.68. You do $58.45 times 0.08, which is $4.676, but you round that to $4.68.
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Robert used 34 grams of iron filings in his second experiment. This is 16 grams more than twice the number of grams he used in h
sweet-ann [11.9K]

34=2x + 16

18=2x

x=9

Robert used 9 grams of iron filings in his first experiment.

3 0
3 years ago
How do I solve this STATS question?
k0ka [10]
We have the following data:

Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6

We need to find the confidence level. For this first we need to find the z value.

The margin of error for a population proportion is given as:

E=z* \sqrt{ \frac{p(1-p)}{n} }

Using the values, we get:

0.027=z* \sqrt{ \frac{0.6*0.4}{900} } \\  \\ &#10;0.027=z*0.016 \\  \\ &#10;z= \frac{0.027}{0.01633}  \\  \\ &#10;z=1.65

As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B
7 0
3 years ago
Good Stuff is giving away free pens to each of the first 200 people who come in the store today. In the first hour, they gave aw
AnnyKZ [126]

Answer:

50 pens

Step-by-step explanation:

x= 25 percent of 200

25/100 times X/200

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7 0
3 years ago
Read 2 more answers
What is the arc length when θ = and the radius is 7 cm? (5 points)
maw [93]
<span>What is the arc length when Θ=3 pi/5 and the radius is 7 cm?
</span><span>Here are the available answers... 21pi/5 cm 12pi/5 cm 6pi/5 cm 3pi/35 cm
</span>
Given:
arc length = theta * radius
arc length = (3 pi/5)(7cm)
arc length = 21pi/5 cm   Answer is the 1st option.
4 0
3 years ago
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NNADVOKAT [17]
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4 0
3 years ago
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