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3 years ago

Use benchmarks to estimate 12.54 +7.98

Mathematics

2 answers:

Nina [5.8K]3 years ago

6 0

12.54=13, 7.98=8, so 13+8=21 and 12.54+7.98=20.52 so 21 is the answer

snow_tiger [21]3 years ago

3 0

If you round both answers to the nearest whole number, you get about 21. You could also round to the nearest tenth, which means you would get 20.5, but you most likely are supposed to use the nearest whole number as a benchmark which would be 13+8=21

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What kind of association is this, negative or positive?

erik [133]

Answer:

negative association

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4 years ago

Imagine that you are planning to estimate the price of the average book at your college bookstore. The bookstore carries 13,000

mafiozo [28]

Answer: "13,000 books" represents the population.

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3 years ago

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3 years ago

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Step-by-step explanation:

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2 years ago

Read 2 more answers

The number of cars sold weekly by a new automobile dealership grows according to a linear growth model. The first week the deale

Sladkaya [172]

Answer:

Recursive Formula, Pₙ=Pₙ₋₁+2

Explicit Formula, Uₙ=4+2n

12 cars

Step-by-step explanation:

In Week 1, the dealer sold six cars, P₀=6

In Week 2, the dealer sold 8 cars, P₁=8

The difference in car sales between the first and second week is 2.

Therefore, for the (n+1)th week, the Recursive Formula is Pₙ=Pₙ₋₁+2

This is an arithmetic progression where the:

First term, a=6

Common difference, d =2

The nth term of an A.P. is given by Uₙ=a+(n-1)d.

The Explicit Formula, Uₙ=6+2(n-1)

=6+2n-2=4+2n

In the fourth week, U₄=4+2(4)=4+8=12

12 cars will be sold in the fourth week

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4 years ago