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Novosadov [1.4K]
3 years ago
14

How can I express this as a single power with positive exponents?

Mathematics
1 answer:
Tamiku [17]3 years ago
3 0

Answer:

5^1

Step-by-step explanation:

\sqrt{5} =5^{\frac{1}{2} } (law of indices - fractional powers)

after converting all the numbers to this form:

\frac{5^{{\frac{2}{3} }  } *  5^{\frac{1}{2} } }{5^{\frac{1}{6} } } \\

combine using law of indices:

5^(2/3+1/2-1/6) = 5^1

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Simplify: 2b - 15d - 8b + 10b + 12d=
guapka [62]

Answer:

4b-3d

Step-by-step explanation:

first add the like terms

2b - 8b + 10b = 4b

12d - 15d = -3d

then add the results.

5 0
4 years ago
The University of Central Florida's cheerleading team has eighteen males and twenty-one females. If h represents the height of a
Anuta_ua [19.1K]

Answer:

The range of heights of the cheerleaders is the interval [58, 74)

All real numbers greater than or equal to 58 inches and less than 74 inches

Step-by-step explanation:

we have

260 \leq 4h+28

Divide the compound inequality into two inequalities

260 \leq 4h+28 -----> inequality A

4h+28 -----> inequality B

Solve inequality A

260 \leq 4h+28

Subtract 28 both sides

232 \leq 4h

Divide by 4 both sides

58 \leq h

Rewrite

h \geq 58\ in

Solve the inequality B

4h+28

Subtract 28 both sides

4h

Divide by 4 both sides

h

therefore

The range of heights of the cheerleaders is the interval [58, 74)

All real numbers greater than or equal to 58 inches and less than 74 inches

3 0
3 years ago
1cm is equal to how much kilometers
Paladinen [302]
1 cm cant equal 1 km
because 1km = 100 cms
8 0
3 years ago
The amount of time a passenger waits at an airport check-in counter is random variable with mean 10 minutes and standard deviati
Stolb23 [73]

Answer:

(a) less than 10 minutes

= 0.5

(b) between 5 and 10 minutes

= 0.5

Step-by-step explanation:

We solve the above question using z score formula. We given a random number of samples, z score formula :

z-score is z = (x-μ)/ Standard error where

x is the raw score

μ is the population mean

Standard error : σ/√n

σ is the population standard deviation

n = number of samples

(a) less than 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Therefore, the probability that the average waiting time waiting in line for this sample is less than 10 minutes = 0.5

(b) between 5 and 10 minutes

i) For 5 minutes

x = 5 μ = 10, σ = 2 n = 50

z = 5 - 10/2/√50

z = -5 / 0.2828427125

= -17.67767

P-value from Z-Table:

P(x<5) = 0

Using the z table to find the probability

P(z ≤ 0) = P(z = -17.67767) = P(x = 5)

= 0

ii) For 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Hence, the probability that the average waiting time waiting in line for this sample is between 5 and 10 minutes is

P(x = 10) - P(x = 5)

= 0.5 - 0

= 0.5

3 0
3 years ago
If an exam is 75 questions long, a 100% being the highest grade, and 79% and below is failing, how many questions can you miss i
natita [175]
It's a C + 

You did a well! 

Hope this helped!
6 0
4 years ago
Read 2 more answers
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