............help plsss T.T

Mathematics

2 answers:

PolarNik [594]3 years ago

4 0

Answer:

a) in division we subtract the index notations

c power 4 / c power 3 = c power 1 or c

d power 5 / d power 3= d power 2

8/2 = 4

answer = 4cd power 2

b) 9/3 = 3

a power 3/ a power 1 = a power 2

b power 5/ b power 2 = b power 3

ans= 3a power 2 b power 3

Pie3 years ago

3 0

Answer: $a, 8c^{4} d^{5} /2c^{3} d^{3}$

$8c^{3}.c.d^{3}.d^{2} /2c^{3} d^{3}$

$ans=4cd^{2}$

ans= $b, 9a^{3} b^{5} /3ab^{2}\\3*3.a^{2}.a.b^{2}.b^{3} /3ab^{2} \\3a^{2}b^{3}$

Step-by-step explanation: hope this will help you

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If f(z)=m^z - n^z, and f(1)=2, f(2)=8. Find f(3).

Marina CMI [18]

If f(z)=m^z - n^z <span>and f(1)=2, f(2)=8
then
m - n = 2 so m = n + 2
m^2 - n^2 = 8

substitute </span>m = n + 2 into m^2 - n^2 = 8

so
m^2 - n^2 = 8
(n + 2)^2 - n^2 = 8
n^2 + 4n + 4 - n^2 = 8
4n = 4
n = 1

m = n + 2 = 1 + 2 = 3

so f(z) = 3^z - 1^z

if z = 1 the f(1) = 3^1 - 1^1 = 2
if z = 2 the f(2) = 3^2 - 1^2 = 9 - 1 = 8
if z = 3 the f(3) = 3^3 - 1^2 = 27 - 1 = 26

answer
f(3) = 26

3 0

3 years ago

A production process is checked periodically by a quality control inspector. the inspector selects simple random samples of 30 f

777dan777 [17]

Answer:

Population Mean = 2.0

Population Standard deviation = 0.03

Step-by-step explanation:

We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.

Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.

Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.

So, Mean, $\mu$ = $\frac{1.9+2.1}{2}$ = 2.0