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3 years ago

Ghchdhdjfhfjfjfjfjfjdjdjdjf

Mathematics

2 answers:

Artyom0805 [142]3 years ago

8 0

Answer:

iugyvhjbnkijogyutfvbh

Step-by-step explanation:

butalik [34]3 years ago

6 0

Answer:

hshdjfujhhshushfui

Step-by-step explanation:

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Graph the line with the slope -1/2 and y-intercept -1.

stepladder [879]

Answer:

y=-1/2x-1

Step-by-step explanation:

I cant show you how to graph bc i cant but i can tell you the equation.

7 0

3 years ago

Write the equation is logarithmic form 33 = 27

Vikki [24]

$\bf log_{{ a}}{{ b}}=y \iff {{ a}}^y={{ b}}\qquad\qquad 
% exponential notation 2nd form
{{ a}}^y={{ b}}\iff log_{{ a}}{{ b}}=y \\\\
-----------------------------\\\\
33=27\iff 33=3^{\underline{3}}\iff log_3(33)=\underline{3}$

8 0

3 years ago

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

A washer and a dryer cost $887 combined. The washer costs $37 more than the dryer. What is the cost of the dryer?

defon

Answer:

The dryer cost 425 dollars

Step-by-step explanation:

425+462=887

8 0

3 years ago

Mr. Stack and Coach Pugh are racing down the highway. Coach Pugh is going five miles more an hour than twice Mr. Stack's speed.

ahrayia [7]

Answer:

Step-by-step explanation:

2(Mr stack's speed) = Coach Pugh's speed - 5mph

Mr stack's speed = (105mph - 5mph)/2

Mr stack's speed = 100mph/2

Mr stack's speed = 50mph

5 0

3 years ago