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3 years ago

What is the simplified expression for 3^3• 3^3/3^4?A. 3^0B.3^1C.3^2D.3^4

Mathematics

2 answers:

Klio2033 [76]3 years ago

8 0

Answer:

Step-by-step explanation:

It is C because multiplying exponents means you add the top number while dividing means subtract.

Andreyy893 years ago

4 0

Answer:

Its C

Step-by-step explanation:

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The formula for finding the area of a circle is A=pi r 2.Solve the formula for r

olga55 [171]

Answer:

See Explanation

Step-by-step explanation:

$A = \pi {r}^{2} \\ \\ \frac{A}{\pi} = {r}^{2} \\ \\ \huge \red{ \boxed{ r = \sqrt{\frac{A}{\pi} } }}$

3 0

4 years ago

Assume that the weight of two year old babies have distribution that is approximately normal with a mean of 29 pounds and a stan

Lana71 [14]

Answer:

25.15 ponds is the weight of two year old baby corresponds to 10th percentile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 29 pounds

Standard Deviation, σ = 3 pounds

We are given that the distribution of weight of two year old babies is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 29}{3})=0.10$

Calculation the value from standard normal z table, we have,

$P(z < -1.282) = 0.10$

$\displaystyle\dfrac{x - 29}{3} = -1.282\\x = 25.154 \approx 25.15$

Thus, 25.15 ponds is the weight of two year old baby corresponds to 10th percentile.

5 0

3 years ago

Rewrite 9^4 * 10^4 as a single power

Vlada [557]

Answer:

90^8

Step-by-step explanation:

5 0

4 years ago

As part of a research project on student debt at TWU, a researcher interviewed a sample of 35 students that were chosen at rando

Inga [223]

Answer:

Option a is right

Step-by-step explanation:

Given that as part of a research project on student debt at TWU, a researcher interviewed a sample of 35 students that were chosen at random concerning their monthly credit card balance.

Sample average = 2573

Variance = 4252

Sample size = 35

STd deviation of X = $\sqrt{4252} \\=65.21$

Score of student selected at random X=1700

Corresponding Z score = $\frac{1700-2573}{65.201} \\=-13.38$

Rounding of we get Z score = -13.4

option a is right

6 0

3 years ago

CALCULATE THE VALUE OF X IN THE FOLLOWING DIAGRAM.<br>

Dvinal [7]

Answer:

$tan(55.3) = \frac{ac}{10.5}$

ac=

$10.5 \tan(55.3)$

$x = 10.5 \tan(55.3) - 10.5$

$x = 4.67(2dp)$

8 0

3 years ago

What is the simplified expression for 3^3• 3^3/3^4?A. 3^0B.3^1C.3^2D.3^4​

What is the simplified expression for 3^3• 3^3/3^4?A. 3^0B.3^1C.3^2D.3^4