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Elden [556K]
4 years ago
5

The reading on a car speedometer has 1.6% maximum error the speed limit on the road is 65 miles per hour

Mathematics
1 answer:
nasty-shy [4]4 years ago
3 0

Answer:

For A) it is possible that the speed  the cat is going over the speed limit

For B) The statement is false as if the error is negative, the speed of the car will be less than the speed limit.

Step-by-step explanation:

Data provided in the question:

Maximum error  on a car speedometer = 1.6% = 0.016

Maximum Speed limit on the road = 65 miles per hour

Now,

The error will be ± 1.6%

Now,

When the speedometer reads 64 miles per hour

The possible speed of the car can be

64 miles per hour + Error

= 64 + [0.016 × 64]

= 64 + 1.024

= 65.024 miles per hour

or

The speed can be

64 miles per hour - Error

= 64 - [0.016 × 64]

= 64 - 1.024

= 62.976 miles per hour

Hence,

For A) it is possible that the speed  the cat is going over the speed limit

For B) The statement is false as if the error is negative, the speed of the car will be less than the speed limit.

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Alinara [238K]

Remember that an exponent means repeated multiplication.

The exponent of 4 means you have four \big(b^2\big)'s mutiplied together:

      \big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)

And then each exponent of 2 inside means you have two b's multiplied inside each set of parentheses.:  

    \big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)

There are 8 b's there when you expand this out.

6 0
3 years ago
Ivan has a summer babysitting job that pays $15 per hour. He wants to know how many hours he has to babysit to afford a new bike
exis [7]

Answer: 20 hours

Step-by-step explanation:

Equation: 15x = 300

Isolate the variable.

Divide both sides by 15:   ¹⁵ˣ⁄₁₅ = ³⁰⁰⁄₁₅

x = 20

Ivan needs to work 20 hours in order to afford the bicycle.

8 0
3 years ago
Whats the differnce in (5x+4)-(x+2)
melomori [17]

Answer:

4x+2

Step-by-step explanation:

(5x+4)-(x+2)=(5-1)*x+(4-2)=4x+2

3 0
3 years ago
colin climbs 16 feet down into tunnel and lands on the tunnel floor. then he jumps to a platform that is 2 feet above the tunnel
Ksivusya [100]

Answer:

-14

Step-by-step explanation:

-16 + 2=-14

7 0
3 years ago
An animal shelter spends $1.00 per day to care for each bird and $3.50 per day to care for each cat. Gabriella noticed that the
GenaCL600 [577]
30 animals on Wednesday =

22 cats x $3.50 per day = $75

8 birds x $1.00 =$8

$75 + $8 = $85

# of birds @ the shelter = 8

# of cats @ the shelter = 22




5 0
3 years ago
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