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m_a_m_a [10]
3 years ago
7

I need help with 18, 19, & 20

Mathematics
1 answer:
luda_lava [24]3 years ago
4 0
18. 17.9 
19. 21.1
20. I cant see the numbers sorry; if the sides are 6, √85 than it should have an angle of 40.6
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Find the area of the circle. Round you answer to the nearest hundredth.
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What are the important things an 8th grader needs to know about math?
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3 0
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Factor as the product of two binomials x^2-3x-10
cestrela7 [59]

Answer:

(x-5)(x+2)

Step-by-step explanation:

Hello there!

Your expression there has a highest power of x^{2}, so there will be two constants that you need to find.

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3 0
3 years ago
A survey of several 8 to 9 year olds recorded the following amounts spent on a trip to the mall: $31.11,$25.01,$18.53,$14.37,$24
Alex17521 [72]

Solution :

Amounts spent on a trip : $31.11, $25.01, $18.53, $14.37, $24.16, $21.91

Confidence interval = 80%

Average amount spent = 8 to 9 years old

One sample T confidence interval

μ : Mean of variance

80% of confidence interval results :

Using statistical software,

Variable : data

Sample mean : 22.515

Std. Err. = 2.3479945

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U. Limit : 25.980368

SD = 5.75

Critical value = 1.476

8 0
3 years ago
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