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Nina [5.8K]
3 years ago
10

The net of a square pyramid and its dimensions are shown in the diagram.

Mathematics
1 answer:
nikitadnepr [17]3 years ago
4 0

Answer:

The total surface area is 336ft2

Step-by-step explanation:

solution:

total suface area of the pyramid

=area of base square +(12)2 = 4 (1/2 x 12 x 8)

=144+192

=336ft2

then the total surface area is 336ft2

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1. A heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 pro
garri49 [273]

Answer:

Part 1 , not significant

Part II, significant

Step-by-step explanation:

Given that a  heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 produce white-fruited plants while only 90 produce yellow-fruited plants

H_0: Both colours are equally likely\\H_a: Both colours are not equally likely

(Two tailed chi square test)

We assume H0 to be true and find out expected

If H0 is true expected would be 100 white and 100 yellow

Chi square = \Sigma \frac{(O-E)^2}{E} \\=\frac{(110-100)^2}{100} +frac{(90-100)^2}{100} \\=2

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p value = 0.152799

Since p value > 0.05 at 5% level we accept that the colours are equally likely

2)

Here observed are 1100 and 900

Expected 1000 & 1000

df = 1

Chi square = \frac{20000}{100} =200

p value <0.0001

These results are here statistically significant.

8 0
3 years ago
What is the following number in decimal form?
aleksley [76]
8.8 because you need to multiply 1.68 by 10 which is 16.8-8=8.8

6 0
3 years ago
Help and explain pls
Lina20 [59]

Answer: are they asking for the answer of the dotted line? If so, it might be 5 since it's the dotted line is opposing the side labeled 5cm.

Hope this helps:)

Step-by-step explanation:

5 0
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