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3 years ago

GEOMETRY EASY QUESTION PLEASE HELP (I'm overthinking)

Mathematics

1 answer:

Anettt [7]3 years ago

7 0

Answer: True

Step-by-step explanation: the red line is basically there to throw you off <CDA and <BDA are equal

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Which pair of angles are alternate interior angles?

jarptica [38.1K]

1 and 8 should be the answer I believe.

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4 years ago

Enter all answers to the nearest tenth.

rodikova [14]

Answer:

What is the probability the mean of his sample will be between $70.00 and $80.00? = 64/64 =1

s1) = 99% =z score = 127/128

s2)64/64 = 1

s3)95% of 64 = 123/128

s4) p) step 3 = 95% of 64 = 60.08 /64 = 60/64 = 93.75%

s5) P)of 2+4 = 283/292 = 96.92%

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3 years ago

The 2004 presidential election exit polls from the critical state of Ohio provided the following results. There were 2020 respon

lord [1]

Answer: a) $0.490\leq p\leq0.582$

b) $0.501\leq p$

Step-by-step explanation:

Given : Sample size of respondents in the exit polls : n= 2020

Number of respondents voted for George Bush = 412

Sample proportion: $\hat{p}=\dfrac{412}{768}\approx0.536$

a) Critical value for 99% confidence level : $z_{\alpha/2}=2.576$

Confidence interval for proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$=0.536\pm (2.576)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536\pm0.046\\\\=(0.490,\ 0.582)$

Hence, the 99% confidence interval for the proportion of college graduates in Ohio that voted for George Bush: $0.490\leq p\leq0.582$

b) Critical value for 95% confidence level : $z_{\alpha/2}=1.96$

Lower confidence bound for the proportion :

$\hat{p}- z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.536-(1.96)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536-0.035=0.501$

Hence, a 95% lower confidence bound for the proportion of college graduates in Ohio that voted for George Bush : $0.501\leq p$

7 0

3 years ago

Read 2 more answers

Find f(-2) for f(x)=2(4)^x

lesya692 [45]

For this case we have the following exponential function:
$f (x) = 2 (4) ^ x
$
To find the value of f (-2) what we must do is substitute the value of x = -2 in the given function.
We have then:
$f (x) = 2 (4) ^{-2}$
Then, rewriting the function we have:
$f (x) = \frac{2}{4^2}$
$f (x) = \frac{2}{16}$
Finally, simplifying we have:
$f (x) = \frac{1}{8}$
Answer:
The value of f (-2) is:
$f (x) = \frac{1}{8}$
option B

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4 years ago

Read 2 more answers

73 percent of what is 156.4

Mkey [24]

$x-searched\ number\\\\73\%x=156.4\\\\0.73x=156.4\ \ \ \ \ \ |:0.73\\\\x=214.25\\\\156.4\ is\ 73\%\ of\ 214.25$

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4 years ago