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Ivenika [448]
3 years ago
7

What’s the area of this

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

1500

Step-by-step explanation:

10 * 10 = 100

35*40 = 1400

Add them

Andru [333]3 years ago
6 0
The correct answer is 1500
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The safety inspector in a large city wants to estimate the proportion of buildings in the city that are in violation of fire cod
Drupady [299]

Answer:

Proportion of buildings in the city that have fire code violations: 10%

Uncertainty 0.3 = 30%

Step-by-step explanation:

This situation complies with a binomial model where p is the probability of finding a building having fire code violations and q=1-p

Since in random sample of 40 buildings chosen for inspection 4 of them are found to have fire code violations, the proportion  is 4/40 = 0.1 or 10% and  p=0.1 as well.

<em>In a</em> <em>binomial model the standard deviation s is: </em>

<em>\large s=\sqrt{npq} </em>

<em>where n is the sample size</em>. So

\large s=\sqrt{40*0.1*0.9}=1.8974

and the uncertainty is the standard error SE

\large SE=\frac{s}{\sqrt{n}}=\frac{1.8974}{\sqrt{40}}=0.3=30\%

7 0
4 years ago
Which of the following is equal to the expression below ? (7^-5 ) 3
Alekssandra [29.7K]
If A=((1/7)^-5 ) 3 , so A= (1/<span>7)^-15 (power property)
the answer is </span><span>b. (1/7 ) ^-15 </span>
6 0
4 years ago
Read 2 more answers
Allison measured a line to be 5.4 inches long. If the actual length of the line is 5.5 inches, then what was the percent error o
valentina_108 [34]

Answer:

1.85%

Step-by-step explanation:

→ Find the difference between the actual and predicted

5.5 - 5.4 = 0.1

→ Divide answer by 5.4

0.1 ÷ 5.4 = 0.01851851851

→ Multiply answer by 100

0.01851851851 × 100 = 1.85%

7 0
2 years ago
Distance between -5 and 12.
miskamm [114]

Answer:

The distance is 17

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Given sec A = 5/3 and that angle A is in Quadrant I, find the exact value of csc A in simplest radical form using a rational den
serg [7]

9514 1404 393

Answer:

  5/4

Step-by-step explanation:

The relationship between the sec and csc functions is ...

  csc(A) = sec(A)/√(sec²(A) -1)

For the given value of sec(A), this is ...

  csc(A) = (5/3)/√((5/3)² -1) = (5/3)/√(16/9) = (5/3)/(4/3)

  csc(A) = 5/4

__

Some calculators can tell you the answer directly.

5 0
3 years ago
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