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3 years ago

geometry question on triangle similarity. image is included. don’t say c as an answer choice, it’s incorrect tysm :))

Mathematics

1 answer:

jolli1 [7]3 years ago

3 0

ABD similar to ECD by SAS similarity postulate
answer is D.

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b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

99% of confidence intervals for mean age of ICU patients

(53.8920 , 61.2079)

Step-by-step explanation:

Explanation:-

Given sample mean $x^{-} = 57.55$

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

Given data standard error = 1.42

99% of confidence intervals for mean is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

Conclusion:-

99% of confidence intervals for mean is determined by

(53.8920 , 61.2079)

5 0

3 years ago

What is the axis of symmetry of the function f(x) = 2x^2 - 4x + 5

Taya2010 [7]

The axis of symmetry of this function is x = 1. I hope this helps!

7 0

3 years ago

Ben is 5 years less than 3 times Gracie's age. How can that be represented as an expression?

Maksim231197 [3]

Answer:

b=3g-5

Step-by-step explanation:

3 times Gracie's age = 3g

Ben is 5 years less = -5

3g-5=Ben

Ben=3g-5

Hope this helped! :^)

3 0

4 years ago

Read 2 more answers

30 POINTS PLEASE ANSWER ASAP!! The dimensions of a rectangular prism are shown below: Length: 2 1/4 Width: 1 foot Height: 1 1/4

a_sh-v [17]

Answer:

84 cubes

Step-by-step explanation:

Given,

The dimension of the rectangular prism are,

Hence, the volume of the prism,

Now, the volume of a cube = side³,

If side = ft,

Then the volume of each cube,

Hence, the number of cubes that can be packet in the prism

4 0

3 years ago

Read 2 more answers

-4x=-3y-5 into standard form

const2013 [10]

Answer:

4x-3y=5

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

geometry question on triangle similarity. image is included. **don’t say c as an answer choice, it’s incorrect** tysm :))

geometry question on triangle similarity. image is included. don’t say c as an answer choice, it’s incorrect tysm :))