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katovenus [111]
3 years ago
14

Will give brainliest 100 points Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.

Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

-3m-4n+14 (D)

Step-by-step explanation:

R-S+T=

<em>Substitute the Values given</em>

(11-2m)-(n+5)+(-m-3n+8)=

<em>Open Parenthesis</em>

11-2m-n-5-m-3n+8=

<em>Combine Like Terms</em>

-3m-4n+14

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If we wanted to create a new 90% confidence interval from a different sample for the proportion of those with a two on one date
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n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2

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z_{\alpha/2}=1.645

Then, the required sample size would be :

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Simplify,

n=270.6025\approx271

Hence, the required minimum sample size =271

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