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Sloan [31]
3 years ago
10

A classroom has stadium seating. There are 10 seats in the first row, 13 seats in the second row, 16 seats in the third row and

so on. There are 56 rows. What is the seating capacity of the class?
Mathematics
1 answer:
NISA [10]3 years ago
5 0
Use the equation:
 
y = 3x + 7

(plug 56 in for the x and then solve)

Answer will be: 175
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3. Describe the solution to the equation.
Law Incorporation [45]
I don’t really know? What grade is this?
4 0
3 years ago
Answer plz. Give an explanation so I know ur not just getting points so I dont report. Thank you!
wariber [46]

Answer: A, D

Step-by-step explanation:

68 is the initial amount.

A is correct because 0.2(68) represents 20% of 68. Since you're looking for 80% of 68, you subtract 0.2(68) from 68.

D is correct because it directly takes 80% of 68, which is what the question is asking for.

6 0
2 years ago
Convert logx y = 1/2 to exponential form.
Lena [83]

Answer:

Exponential form: y = x^½

Step-by-step explanation:

Given

log_xy= \frac{1}{2}

Required:

The exponential form

To convert to an exponential function, we have to take exponents of both sides using the base of the logarithm function.

This gives us

x^{log_xy}= x^\frac{1}{2}

Since the base of the exponential function and the logarithm is the same (x), they'll cancel out one another

This leaves us with

y= x^\frac{1}{2}

Hence, the exponential form of the expression

log_xy= \frac{1}{2} is y= x^\frac{1}{2}

8 0
3 years ago
Help math hurry! 20min left!!! 5 questions!
Thepotemich [5.8K]
1 - 3
2 - 3
3 - C
4 - D
5 - C
3 0
3 years ago
Before starting to play the roulette in a casino you want to look for biases that you can exploit. Youtherefore watch 100 rounds
never [62]

Answer:

P(n>55)=0.1357

Step-by-step explanation:

From the question we are told that:

Sample size n=100

Sample space n'=36

Generally the equation for the mean number of times odds appears is mathematically given by

\=x_o=hp

\=x_o=100*0.5

\=x_o=50

Generally the equation for standard deviation is mathematically given by

\sigma=(hp(1-p))^{1/2}\\\sigma=(50(0.5))^{1/2}

\sigma=5

Therefore probability to make wrong decision P(n>55)

P(n>55)=1-P(z55)=1-P(z55)=1-0.86

P(n>55)=0.1357

8 0
3 years ago
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