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egoroff_w [7]
3 years ago
15

If 2/3 of the 600 seeds sprouted, how many seeds did not sprout?

Mathematics
1 answer:
kupik [55]3 years ago
8 0

Answer:

200 seeds

Step-by-step explanation:

If 2/3 of the seeds sprouted, then (1-2/3)  1/3 of the seeds did not sprout.

1/3 * 600 = 600/3 = 200

200 seeds did not sprout

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The front of an A-frame house is in the shape of a triangle.The height of the house is 20 feet.The area of the front of a A-fram
ipn [44]
600 divided by 20=30
30x2=60 which is the answer

equation= 600=2x area divied by height 
7 0
3 years ago
National data indicates that​ 35% of households own a desktop computer. In a random sample of 570​ households, 40% owned a deskt
Elan Coil [88]

Answer:

Yes, this provide enough evidence to show a difference in the proportion of households that own a​ desktop.

Step-by-step explanation:

We are given that National data indicates that​ 35% of households own a desktop computer.

In a random sample of 570​ households, 40% owned a desktop computer.

<em><u>Let p = population proportion of households who own a desktop computer</u></em>

SO, Null Hypothesis, H_0 : p = 25%   {means that 35% of households own a desktop computer}

Alternate Hypothesis, H_A : p \neq 25%   {means that % of households who own a desktop computer is different from 35%}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

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

where, \hat p = sample proportion of 570​ households who owned a desktop computer = 40%

            n = sample of households = 570

So, <u><em>test statistics</em></u>  =  \frac{0.40-0.35}{{\sqrt{\frac{0.40(1-0.40)}{570} } } } }

                               =  2.437

<em>Since, in the question we are not given with the level of significance at which to test out hypothesis so we assume it to be 5%. Now at 5% significance level, the z table gives critical values of -1.96 and 1.96 for two-tailed test. Since our test statistics doesn't lies within the range of critical values of z so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.</em>

Therefore, we conclude that % of households who own a desktop computer is different from 35%.

3 0
3 years ago
1. The great pyramid at Giza is the largest pyramid in the world, the area of its square base is 52,441 m squared, what is the l
AlladinOne [14]

Answer:

The length of each side of the base is 229\ m

Step-by-step explanation:

we know that

The area of a square is equal to

A=b^{2}

where

b is the length side of a square

In this problem we have

A=52,441\ m^{2}

so

substitute in the formula

52,441=b^{2}

Square root both sides

b=\sqrt{52,441}\ m

b=229\ m

3 0
3 years ago
When solving a system by substitution, one should
neonofarm [45]
B, because to substitute for a variable you have to have an equation to substitute first.
6 0
3 years ago
Which angle is congruent to angle ACB
ANEK [815]

Answer:

there is no pictures sorry

3 0
3 years ago
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