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Tpy6a [65]
3 years ago
13

Please help with number 1

Mathematics
1 answer:
Digiron [165]3 years ago
8 0
The sum of the two smaller sides must be greater than longest side.

A) 3+2 > 7 ..... False

B) 6+10 > 14   ... True

C) 3+2 > 5   ....False

D) 23+18 > 42  ....False

Answer is B
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Please help!
Marat540 [252]

Answer: width = 82.50 m

Step-by-step explanation:

P = 2l x 2w

425 = 2(130) + 2w

425 - 260 = 2w

w = 165 / 2 = 82.50

5 0
3 years ago
The telephone company purchased 192 yards of wire for $2,304 in January. They
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Answer:

Step-by-step explanation:

400yd($2304/192yd)=$4800

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2 years ago
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A pentagon is formed by connecting the tips of a starfish's leds, as shown below
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Answer:

The area is 161

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2 years ago
An algebraic equation is an equation that includes: A. No variables B. Only one variable C. One or more variables D.Just numbers
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Answer:

C

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3 0
3 years ago
A national survey of companies included a question that asked whether the company had at least one bilingual telephone operator.
nirvana33 [79]

Answer:

The first option is correct. Option A is correct.

LCL = 0.270, and UCL = 0.397

80% Confidence interval = (0.270, 0.397)

Step-by-step explanation:

The data for Y and N for the 90 companies is attached to this solution provided.

Y represents companies with at least 1 bilingual operator and N represents companies with no bilingual operator.

The number of Y in the data = 30

Hence, sample proportion of companies with at least one bilingual operator = (30/90) = 0.3333

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion = 0.3333

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 80% confidence level for sample size of 90 is obtained from the z-tables.

Critical value = 1.280

Standard error of the mean = σₓ = √[p(1-p)/n]

p = sample proportion

n = sample size = 90

σₓ = √[0.3333×0.6667)/90] = 0.0496891568 = 0.04969

80% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.3333 ± (1.28 × 0.04969)

CI = 0.3333 ± 0.0636021207

80% CI = (0.2696978793, 0.3969021207)

80% Confidence interval = (0.270, 0.397)

Hope this Helps!!!

3 0
3 years ago
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