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3 years ago

Help, me at this :) and ty

Mathematics

1 answer:

Naily [24]3 years ago

7 0

Step-by-step explanation:

8) u = vw + z

For v,

u = vw + z

u - z = vw

(u - z)/w = v

v = (u - z)/w

9) x = b - cd

For c,

x = b - cd

x - b = -cd

-(x - b)/d = c

c = -(x - b)/d

= (-x + b)/d

x = b - cd

cd = b - x

c = (b - x)/d

10) fg - 9h = 10j

For g,

fg - 9h = 10j

fg = 10j + 9h

g = (10j + 9h)/f

11) 10m - p = -n

For m,

10m - p = -n

10m = -n + p

m = (-n +p)/10

12) r = (2/3)t + v

For t,

r = (2/3)t + v

r = 2t/3 +v

r - v = 2t/3

3(r - v) = 2t

t = 3(r - v)/2

13) (5/9) v + w = z

For v,

5v/9 + w = z

5v/9 = z - w

5v = 9(z - w)

v = 9(z - w)/5

14) (10ac - x)/11 = -3

For a,

(10ac - x)/11 = -3

10ac - x = -3 × 11

10ac - x = -33

10ac = x - 33

a = (x - 33)/10c

15) (df + 10)/6 = g

For f,

(df + 10)/6 = g

df + 10 = 6g

df = 6g - 10

f = (6g - 10)/d

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4 0

3 years ago

Read 2 more answers

The Center for Medicare and Medical Services reported that there were 295,000 appeals for hospitalization and other Part A Medic

Ymorist [56]

Answer:

(a) 0.00605

(b) 0.0403

(c) 0.9536

(d) 0.98809

Step-by-step explanation:

We are given that 40% of first-round appeals were successful (The Wall Street Journal, October 22, 2012) and suppose ten first-round appeals have just been received by a Medicare appeals office.

This situation can be represented through Binomial distribution as;

$P(X=r)= \binom{n}{r}p^{r}(1-p)^{n-r} ; x = 0,1,2,3,....$

where, n = number of trials (samples) taken = 10

r = number of success

p = probability of success which in our question is % of first-round

appeals that were successful, i.e.; 40%

So, here X ~ $Binom(n=10,p=0.40)$

(a) Probability that none of the appeals will be successful = P(X = 0)

P(X = 0) = $\binom{10}{0}0.40^{0}(1-0.40)^{10-0}$

= $1*0.6^{10}$ = 0.00605

(b) Probability that exactly one of the appeals will be successful = P(X = 1)

P(X = 1) = $\binom{10}{1}0.40^{1}(1-0.40)^{10-1}$

= $10*0.4^{1} *0.6^{10-1}$ = 0.0403

P(X >= 2) = 1 - P(X = 0) - P(X = 1)

= 1 - $\binom{10}{0}0.40^{0}(1-0.40)^{10-0} - \binom{10}{1}0.40^{1}(1-0.40)^{10-1}$

= 1 - 0.00605 - 0.0403 = 0.9536

(d) Probability that more than half of the appeals will be successful = P(X > 0.5)

For this probability we will convert our distribution into normal such that;

X ~ N( $\mu = n*p=4,\sigma^{2}= n*p*q = 2.4$ )

and standard normal z has distribution as;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

P(X > 0.5) = P( $\frac{X-\mu}{\sigma}$ > $\frac{0.5-4}{\sqrt{2.4} }$ ) = P(Z > -2.26) = P(Z < 2.26) = 0.98809

3 0

3 years ago

The length of a car is √185 ft. Will this car fit in a garage that measure 10 ft long? If not that is the minimum length of a ga

Rina8888 [55]

10 is the square root of only 100, so I know that the square root of 185 must be longer.

The square root of 185 is about 13.6 , so the garage must be absolutely
not any shorter than 14-ft, and 15-ft or 16-ft would be even better.

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3 years ago

How many miles is C streets?

Citrus2011 [14]

Answer:

Step-by-step explanation:

I got it right

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3 years ago

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julia-pushkina [17]

Answer:

Step-by-step explanation:

The x-intercepts are where the graph crosses the x-axis.

<em>(look at the picture).</em>

<em />

The y-intercepts are where the graph crosses the y-axis.

<em>(look at the second picture)</em>

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3 years ago