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VMariaS [17]
3 years ago
10

Can someone help me with this

Mathematics
1 answer:
Kitty [74]3 years ago
4 0
You can't see the picture, please reach out once i can see it
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Is 2.99 irrational or rational?
ss7ja [257]

Answer:

rational

Step-by-step explanation:

its decimal expansion terminates after 9 and it can also be represented as fraction.

8 0
3 years ago
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A genetic experiment involving peas yielded one sample of offspring consisting of 430 green peas and 155 yellow peas. Use a 0.05
Dimas [21]

Answer:

the null and alternative hypothesis are

H_{0}: p=0.24

H_{a}: p≠0.24

Test statistic is 1.416.

P-Value is 0.1568

We fail to reject the null hypothesis under 0.05 significance level

<em>At 0.05 significance</em> we cannot say that the proportion of offspring peas will be yellow is not 0.24 (24%)

Step-by-step explanation:

Let p be the proportion of offspring peas will be yellow. Then,

H_{0}: p=0.24

H_{a}: p≠0.24

test statistic can be calculated as

z=\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } } where

  • p(s) is the sample proportion of yellow offspring peas (\frac{155}{155+430} =0.265
  • p is the proportion of yellow offspring peas assumed under null hypothesis. (0.24)
  • N is the sample size (585)

Test statistic is z=\frac{0.265-0.24}{\sqrt{\frac{0.24*0.76}{585} } } ≈ 1.416.

Using z-table, we can find that P-Value is 0.1568

We fail to reject the null hypothesis under 0.05 significance level since 0.157>0.05

We can conclude that <em>at 0.05 significance</em> we cannot say that the proportion of offspring peas will be yellow is not 0.24 (24%)

6 0
3 years ago
Find the missing length of the triangle.
jek_recluse [69]

Answer:

a = 13.8

(missing length of triangle = 13.8 meters)

Step-by-step explanation:

The side lengths of a triangle can be related using the Pythagorean Theorem;

a² + b² = c²

where

a = one side length

b = other side length

c = hypotenuse (long side --across from 90° angle)

So, by plugging our values into the Pythagorean Theorem, we can solve for a:

a = unknown

b = 18.4

c = 23

a² + b² = c²

a² + 18.4² = 23²

a² + 338.56 = 539

    - 338.56   - 338.56       {subtract 338.56 from both sides to isolate a}

a² = 190.44

√a² = √190.44

a = 13.8

so, the missing length of the triangle is 13.8 m

hope this helps!!

6 0
2 years ago
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Can somebody solve this?
vesna_86 [32]

Answer:4

Step-by-step explanation:2+2=4

7 0
3 years ago
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It takes 6 painters 20 hours working together to paint 15 rooms. How long will it take 1 painter to paint 1 room working alone a
NISA [10]
It will take about 22 minutes because 20 hours divided by 15 rooms equals 1 hour and 33 minutes for one room divided by the six painters equals 22 minutes
8 0
4 years ago
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