3 years ago

Which expression is equivalent to the given expression?

Mathematics

1 answer:

bogdanovich [222]3 years ago

4 0

−(2n−6)
= -2n + 6
= -2(n - 3)

answer is 1. −2(n−3)

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WIll GIVE BRAINLYEST TO WHOEVER ANSWERS BOTH QUESTIONS FIRST CORRECTLY

omeli [17]

Answer:

1. 8.4 in 2. 33.6

Step-by-step explanation:

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3 years ago

What is the center of the circle and radius defined by the following equation? x2+y2+4y=5

vovangra [49]

Answer:

Step-by-step explanation:

Alternate forms:

x^2 + y (y + 4) = 5

x^2 + y^2 + 4 y - 5 = 0

Solutions:

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y = sqrt(9 - x^2) - 2

Integer solutions:

x = ± 3, y = -2

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3 years ago

Assume that the random variable X is normally distributed, with mean mu equals 100 and standard deviation sigma equals 20. Comp

TEA [102]

Answer: 0.2119

Step-by-step explanation:

We assume that the random variable X is normally distributed.

Given : Population mean : $\mu=100$

Standard deviation : $\sigma=20$

Z-score : $z=\dfrac{x-\mu}{\sigma}$

Then, z-score corresponds to 116

$z=\dfrac{116-100}{20}=0.8$

By using the standard normal distribution table for z , we have

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Hence, the required probability = 0.2119

4 0

4 years ago

2+2=4 the wat does 50*1 equal

Rudiy27

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find two positive numbers such that the sum of the first and twice the second is 56 and whose product is a maximum

Svetlanka [38]

Let
x-------> the first number
y-------> the second number
P-----> product

we know that
x+2y=56----------> 2y=56-x-----> y=28-0.5x------> equation 1
P=x*y----> equation 2

substitute equation 1 in equation 2
P=x*[28-0.5x]-----> P=28x-0.5x²

using a graph tool
see the attached figure
the vertex is the point (28,392)
that means
for x=28
the product is 392 (maximum)
find the value of y
y=28-0.5x----> y=28-0.5*28----> y=14

the answer is
the numbers are 28 and 14

5 0

4 years ago