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Aneli [31]
4 years ago
15

( 3 x 2 ) ^ 4 x 3 ^ -3 / 2 ^ 3 x 3 = Simplify the exponential expression

Mathematics
1 answer:
Korvikt [17]4 years ago
4 0

Answer:

2

Step-by-step explanation:

\frac{(3*2)^4*3^{-3}}{2^3*3}

we start simplifying by removing the parenthesis

Multiply the exponents inside the the parenthesis

3^4  * 2^4

\frac{3^4*2^4*3^{-3}}{2^3*3}

Now we apply exponential property

a^m * a^n = a^ (m+n)

3^4 * 3^-3 = 3^ (4-3) = 3^1

3 or 3^1  are same

\frac{3^1*2^4}{2^3*3^1}

3^1 at the top and bottom so we cancel it out

\frac{2^4}{2^3}

we apply log property . a^m / a^n = a^m-n

Now subtract the exponents

2^(4-3) = 2^1 = 2



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Question 17 i need help answer is -16 but don’t know how
Mila [183]

Answer:

-16

Step-by-step explanation:

-k² -(3k-5n)+4n k=-1 , n= -2

= -(-1)² - ( 3(-1) -5(-2) )+4(-2)

= -1-(-3+10)-8

= -1-(7)-8

= -1-7-8

= -16

4 0
3 years ago
Alison, the owner of a regional chain of pizza stores, is trying to decide whether to add calzones to the menu. She conducts a s
Mekhanik [1.2K]

Answer:

Step-by-step explanation:

Confidence interval is written as

Sample proportion ± margin of error

Margin of error = z × √pq/n

Where

z represents the z score corresponding to the confidence level

p = sample proportion. It also means probability of success

q = probability of failure

q = 1 - p

p = x/n

Where

n represents the number of samples

x represents the number of success

From the information given,

n = 700

x = 46

p = 46/700 = 0.066

q = 1 - 0.066 = 0.934

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.9 = 0.1

α/2 = 0.1/2 = 0.05

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.05 = 0.95

The z score corresponding to the area on the z table is 1.645. Thus, the z score for a confidence level of 90% is 1.645

Therefore, the 90% confidence interval is

0.066 ± 1.645√(0.066)(0.934)/700

= 0.066 ± 0.0094

The lower limit of the confidence interval is

0.066 - 0.0094 = 0.0566

The upper limit of the confidence interval is

0.066 + 0.0094 = 0.0754

5 0
3 years ago
A truck is carrying 3 tons of cement and 150 pounds of bricks. How many pounds does the truck's load weigh in total
vodomira [7]

Answer: 6,150 \text{ pounds}

Step-by-step explanation:

Given: The weight of cement = 3 tons

The weight of bricks = 150 pounds

We know that \text{1 ton = 2,000 pounds}

Therefore, \text{3 tons}=3\times2,000=6,000

Now, the total weight of load in truck = 150+6,000=6,150\text{ pounds}

Hence,  the truck's load weigh in total = 6,150 pounds.

5 0
4 years ago
A solid circular cylinder has a base radius 5 cm and a height 12.5 cm. Find the approximate increase in the surface area of the
Olin [163]

Answer:

19.72 cm²

Step-by-step explanation:

A solid circular cylinder has a base radius 5 cm and a height 12.5 cm.

The volume of cylinder is given by :

V=\pi r^2 h\\\\=3.14\times (5)^2\times 12.5\\\\=981.25\ cm^2

When r = 5.05, new volum becomes,

V=\pi r^2 h\\\\=3.14\times (5.05)^2\times 12.5\\\\=1000.97\ cm^2

Increase in area = 1000.97 - 981.25 = 19.72 cm²

So, the increase in surface area of the cylinder is equal to 19.72 cm².

6 0
3 years ago
Which number is 1,000 times as great as 0.057?
Greeley [361]

Take 0.057 and move the decimal right 3 times

.057

.57

5.7

57.0

Your answer is 57.

5 0
3 years ago
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