3 years ago

Suppose the bank installs nine alarms. What is the expected number of alarms that will detect a burglar?

Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

The answer is 6 because

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What is the scale factor, perimeter ratio, surface ratio, and the volume ratio?????????????????????????????

tamaranim1 [39]

Answer:

Scale factor = $\frac{4}{9}$

Perimeter ratio = 4 : 9

Surface area ratio = 16 : 81

Volume ratio = 64 : 729

Step-by-step explanation:

Volume ratio = $\frac{\text{volume of small prism}}{\text{Volume of large prism}}$

= $\frac{128}{1458}$

= $\frac{64}{729}$

= 64 : 729

Scale factor = $\sqrt[3]{\frac{\text{volume of small prism}}{\text{Volume of large prism}}}$

= $\sqrt[3]{\frac{64}{729}}$

= $\frac{4}{9}$

Perimeter ratio = Scale factor

= $\frac{4}{9}$

= 4 : 9

Surface area ratio = (Scale factor)²

= $(\frac{4}{9})^{2}$

= $\frac{16}{81}$

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3 years ago

A barrel contains 10 red balls, 11 blue balls, and 23 green balls. You start taking balls out. How many do you need to remove, a

marin [14]

Answer:

The answer is3

Step-by-step explanation:

because there is three colors

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3 years ago

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Jonathan purchases 15 pounds of bananas for $.49 a pound. How much did Jonathan pay

ExtremeBDS [4]

Answer:

$7.35

Step-by-step explanation:

To find the answer to this question, you would need to multiply 15 times .49 which would equal 7.35

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3 years ago

Gas is priced at $2.70 per gallon. My gas tank has 2 gallons currently in the tank. Write an equation to show much

Sveta_85 [38]

Answer:

The equation is

2.7x - 5.4

Step-by-step explanation:

Gas is priced at $2.70 per gallon. My gas tank has 2 gallons currently in the tank. Write an equation to how much

the money I will spend to fill up my tank.

Let the total gallons that would fill your tank = x

The tank currently has 2 gallons

A gallon =>$2.70

Therefore, our equation is

=(x - 2) × 2.70

= 2.7x - 5.4

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3 years ago

Please please please help me

Sunny_sXe [5.5K]

B is the answeri!!!!!

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3 years ago