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Afina-wow [57]
3 years ago
8

A letter home to the parents of seniors at Westgate High School says, "a simple random sample of 30 Westgate seniors that took t

he SAT-M test this year produced a mean of 512 and a standard deviation of 95. A confidence interval for the true mean for all WHS seniors is 512.00 ± 47.8." The confidence level for this interval is Group of answer choices
Mathematics
2 answers:
lawyer [7]2 years ago
3 0

Answer:

imsorryimsorryimsorry i have a test and i need points because i dont understand it and icant fail im so sorry <3<3<3

Step-by-step explanation:

:(:(:(:(:(:(:(:(:(

atroni [7]2 years ago
3 0

Answer:

It's 99%

Step-by-step explanation:

It just is.

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Find the numerical value of the log expression. \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3 loga=7logb=10logc=3 \log \
bija089 [108]

Answer:

  32

Step-by-step explanation:

  \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3\\\\ \log \dfrac{a^8c^2}{b^3}=8\log{a}+2\log{c}-3\log{b}=(8)(7)+(2)(3)-(3)(10)\\\\=56+6-30=\boxed{32}

__

The applicable rules of logarithms are ...

  log(ab/c) = log(a) +log(b) -log(c)

  log(a^b) = b·log(a)

6 0
3 years ago
Please help me with number ten and twelve
jasenka [17]

Answer: 93,\ 34^{\circ}

Step-by-step explanation:

Given

For figure (i) both triangles are congruent

\therefore 8x-27=4x+33\\\Rightarrow 8x-4x=33+27\\\Rightarrow 4x=60\\\Rightarrow x=15

\Rightarrow PQ=8x-27\\\Rightarrow PQ=93

For figure (ii)

Two triangles WXZ and WZY are congruent

\therefore 9x-28=5x-8\\\Rightarrow 4x=20\\\Rightarrow x=5^{\circ}\\\Rightarrow \angle YWX=2(9x-28)\\\Rightarrow \angle YWX=2(17)\\\Rightarrow \angle YWX=34^{\circ}

5 0
3 years ago
Write the smallest and the largest 5 - digit number using 1 ,2,3,4,5 only one which is divisble by 6
Aleks04 [339]
Largest 5-digit number is 54312 and is divisible by 6. The smallest 5 digit number is 12,345 and it's not divisible by 6

4 0
3 years ago
plz ingore what was clicked i mark it by accident unless it the right answer then dont ingore it plzzzzzzzzzzzzz help
Murljashka [212]

Answer:

option b

Step-by-step explanation:

f(2)=-2 is the answer

8 0
3 years ago
DeAndre downloaded 8 apps onto his tablet in 12 seconds. At this rate, how many apps could he download in one minute? (12 second
ale4655 [162]
40 apps.

Explanation:
60 divided by 12 is 5. That’s how many downloading sessions could fit in a minute. Multiply 5 by the number of apps, which is 8. Your answer is 40 apps.
7 0
2 years ago
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