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2 years ago

Find the angle measures for this isosceles triangle.

Mathematics

1 answer:

rewona [7]2 years ago

4 0

Answer:

Step-by-step explanation:

3p+6p+6p=180°

15p=180

p=12

3p=12×3=36°

6p=12×6=72°

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A random sample of 100 automobile owners in thestate of Virginia shows that an automobile is driven onaverage 23,500 kilometers

Anastaziya [24]

Answer:

a) 22497.7 < μ< 24502.3

b) With 99% confidence the possible error will not exceed 1002.3

Step-by-step explanation:

Given that:

Mean (μ) = 23500 kilometers per year

Standard deviation (σ) = 3900 kilometers

Confidence level (c) = 99% = 0.99

number of samples (n) = 100

a) α = 1 - c = 1 - 0.99 = 0.01

$\frac{\alpha }{2} =\frac{0.01}{2}=0.005\\ z_{\frac{\alpha }{2}}=z_{0.005}=2.57$

Using normal distribution table, $z_{0.005$ is the z value of 1 - 0.005 = 0.995 of the area to the right which is 2.57.

The margin of error (e) is given as:

$e= z_{0.005}\frac{\sigma}{\sqrt{n} } = 2.57*\frac{3900}{\sqrt{100} } =1002.3$

The 99% confidence interval = (μ - e, μ + e) = (23500 - 1002.3, 23500 + 1002.3) = (22497.7, 24502.3)

Confidence interval = 22497.7 < μ< 24502.3

b) With 99% confidence the possible error will not exceed 1002.3

5 0

3 years ago

How do you do this question?

daser333 [38]

Answer:

B. 1/2

Step-by-step explanation:

$\lim_{z \to 0} \frac{g(z)e^{-z}-3}{z^{2}-2z}$

If we plug in 0 for z, we get 0/0. Apply l'Hopital's rule.

$\lim_{z \to 0} \frac{-g(z)e^{-z}+g'(z)e^{-z}}{2z-2}$

Now when we plug in 0 for z, we get:

$\frac{-g(0)e^{0}+g'(0)e^{0}}{2(0)-2}\\\frac{-g(0)+g'(0)}{-2}\\\frac{-3+2}{-2}\\\frac{1}{2}$

4 0

2 years ago

Help please thanks.......

stiv31 [10]

Answer:

Step-by-step explanation:

when x=0,y=6*2^0=6*1=6

6 0

3 years ago

Please answer this question:)

vichka [17]

Answer:

......................................................

in LMNP rectangle

LN and MP are diagonals

so, LN and MP are Equal

x = 2x - 2

2 = 2x - x

2 = x

3 0

2 years ago

Solve for n.<br><br> -53 + n = -28<br><br> -35<br> -25<br> 25<br> 35

Llana [10]

Answer:

Step-by-step explanation:

-28+53

Hope this helps! :)

7 0

3 years ago

Read 2 more answers