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Temka [501]
3 years ago
7

An amphitheater was 19 seats in the front row, 22 in the second, 25 in the third, and so on, for 24 rows

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0

Answer:

Answer: 572

Step-by-step explanation:

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How do you rewrite one and 2 thirds using twelfths
TiliK225 [7]

Answer:

1 2/3 = 1 8/12

Step-by-step explanation:

2/3 * 4/4 because 3*4= 12 is 8/12 hope this helps :)

3 0
3 years ago
Read 2 more answers
The commercial for the new Meat Man Barbecue claims that it takes 10 minutes for assembly. A consumer advocate thinks that the c
Andrews [41]

Answer:

There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes (P-value=0.009).

Step-by-step explanation:

We have to perform an hypothesis test on the mean.

The null and alternative hypothesis are:

H_0: \mu=10\\\\H_1: \mu \neq 10

The significance level is \alpha=0.05.

The test statistic t can be calculated as:

t=\frac{M-\mu}{s/\sqrt{N} } =\frac{11.2-10}{3.1/\sqrt{50} }=2.737

The degrees of freedom are:

df=N-1=50-1=49

The P-value (two-tailed test) for t=2.737 and df=49 is P=0.00862.

This P-value (0.009) is smaller than the significance level, so the effect is significant. The null hypothesis is rejected.

There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes.

7 0
3 years ago
Please help Omg please please please I’m praying somebody helps
matrenka [14]
Okay so the formula for speed is speed = distance divided by time so 120 /4 is 30 for the first bar
5 0
3 years ago
A swimming pool is to be drained. The pool is shaped like a rectangular prism with length 30 feet, wide 18 ft, and depth 4ft. Su
Gala2k [10]

Answer: it will take 9 hours to empty the pool.

Step-by-step explanation:

The pool is shaped like a rectangular prism with length 30 feet, wide 18 ft, and depth 4ft. It means that when the pool is full, its volume is

30 × 18 × 4 = 2160 ft³

If water is pumped out of the pool at a rate of 216ft3 per hour, then the rate at which the water in the pool is decreasing is in arithmetic progression. The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + d(n - 1)

Where

a represents the first term of the sequence(initial amount of water in the pool when completely full).

d represents the common difference(rate at which it is being pumped out)

n represents the number of terms(hours) in the sequence.

From the information given,

a = 2160 degrees

d = - 216 ft3

Tn = 0(the final volume would be zero)

We want to determine the number of terms(hours) for which Tn would be zero. Therefore,

0 = 2160 - 216 (n - 1)

2160 = 216(n - 1) = 216n + 216

216n = 2160 - 216

216n = 1944

n = 1944/216

n = 9

8 0
3 years ago
Write the slope intersect form of the equation. <br><br> Through (8,1) perpendicular to y =1/2x +2
dolphi86 [110]

Answer:

Step-by-step explanation:

y= -(1/2)x - 5

6 0
2 years ago
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