3 years ago

Exercises

Mathematics

1 answer:

lyudmila [28]3 years ago

3 0

Answer:

minimum 380 student tickets must be sold.

Step-by-step explanation:

c) 500x7=3500

intended =5400

5400-3500=1900

1900/5= 380

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Taya2010 [7]

Answer:

30.6 cm²

Step-by-step explanation:

The area of the parallelogram is simply the sum of the areas of the component three shapes - the square and the two triangles.

Area of square = 4.5 cm × 4.5 cm = 20.25 cm²

Area of two triangles = 2 ×(1/2) × 2.3 cm × 4.5 cm = 10.35 cm²

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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtain

slega [8]

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Step-by-step explanation:

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$n=0.32(1-0.32)(\frac{1.96}{0.01})^2=8359.3216\approx8359$

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3 years ago

Find the solution set of 5x+7> 17.

Soloha48 [4]

Answer:

x > 2

Step-by-step explanation:

5x +7 > 17

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I got 67 but I can guarantee it’s right

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cestrela7 [59]

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Step-by-step explanation

area is height multiplied by base so x times c /2= 1/2cx

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2 years ago