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3 years ago

Plz help I’m stuckkk

Mathematics

1 answer:

Shalnov [3]3 years ago

7 0

check the picture below.

notice, you simply have 6 rectangles, thus simply get the area of each, sum them up and that's the area of the net.

(5*4) + (4*3) + (5*3) + (5*4) + (5*3) + (4*3).

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oksian1 [2.3K]

Answer:

shade in-between the 0 and the 8 with open circles on each number

Step-by-step explanation:

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3 years ago

Random Questions To Answer For Points.

DaniilM [7]

Answer:

1. someone who walk 42 feet in 6 seconds

2. At the Grocery mart the strawberries cost $1.49 per lb. At Baldwin Hills market the strawberries code $1.33 per lb

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Suppose a town wants to design two landfills shaped as a cone and a cylinder. The base diameter and the volume of both designs w

Sliva [168]

Answer:

Step-by-step explanation:

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3 years ago

A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense he

Orlov [11]

Answer:

We conclude that the the touch therapists does not use a method equivalent to random guesses.

Yes, the results suggest that touch therapists are effective.

Step-by-step explanation:

We are given that in a 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field.

Among 264264 trials, the touch therapists were correct 105105 times.

Let p = proportion that touch therapists uses a random guess method.

Here, random guess means; p = 50%

So, Null Hypothesis, $H_0$ : p = 50% {means that the touch therapists use a method equivalent to random guesses}

Alternate Hypothesis, $H_A$ : p $\neq$ 50% {means that the touch therapists does not use a method equivalent to random guesses}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of touch therapists were correct = $\frac{105}{264}$ = 0.39

n = sample of trials = 264

So, test statistics = $\frac{\frac{105}{264} -0.50}{\sqrt{\frac{\frac{105}{264}(1-\frac{105}{264})}{264} } }$

= -3.395

The value of z test statistics is -3.395.

Now, at 0.05 significance level the z table gives critical value of -1.96 and 1.96 for two-tailed test. Since our test statistics does not lie within the range of critical values of z, so we have sufficient evidence to reject our null hypothesis as it will in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the the touch therapists does not use a method equivalent to random guesses.

Yes, the results suggest that touch therapists are effective.

3 0

3 years ago

193+y greater than and equal to 201

natta225 [31]

193+y greater than and equal to 201

Greater than or equal to = ≥

193 + y ≥ 201

193 + y greater than and equal to = 193 + y ≥ 201

4 0

3 years ago