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4 years ago

Evaluate the function at x = –2.

Mathematics

1 answer:

grigory [225]4 years ago

6 0

The answer has to be C because when you have x=2 y is equal to 2. there is nothing to do with 0

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Crystal earns $5.50 per hours mowing lawns. Write a rule to describe how the amout of money m earned is a function of the number

ra1l [238]

She earns $5.50 for every hour so:
$m = 5.5h$
3 hours and 45 minutes is 3.75 hours.
$m = 5.5(3.75)$
$m = 20.625$
After rounding, she earns $20.63.

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4 years ago

A plane flies 1400 kilometres in 2 hours 30 minutes

Sloan [31]

560 kilometers flied in each hour

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3 years ago

On average 83.1% of welds performed by a particular welder are defective. if, in one day, the welder creates three welds. what i

Nuetrik [128]

Let p be 0.831 denote the percentage of defective welds and q be 0.169 denote the percentage of non-defective welds.

Using the binomial distribution, we want all three to be defective.
$P(X = 3) = \binom{3}{3}(p)^{3}{q}^{3 - 3}$
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3 years ago

There are 412 students and 20 teachers taking buses on a trip to a museum. Each bus can seat a maximum of 48. Which inequality g

-BARSIC- [3]

The inequality $\mathrm{b} \geq \frac{\text { total number of travelers }}{\text { capacity of each bus }}$ gives the least number of buses, b, needed for the trip. The least number of buses is 9

Solution:

Given that, There are 412 students and 20 teachers taking buses on a trip to a museum.

Each bus can seat a maximum of 48.

We have to find which inequality gives the least number of buses, b, needed for the trip?

Now, there are 412 students and 20 teachers, so in total there are 412 + 20 = 432 travelers

The number of buses required “b” is given as:

$\text { (b) } \geq \frac{\text { total number of travelers }}{\text { capacity of each bus }}$

$\text { So, number of buses required } \geq \frac{432}{48}$

Number of buses required ≥ 9 buses.

But least number will be 9 from the above inequality.

Hence, the inequality $\mathrm{b} \geq \frac{\text {total number of travelers}}{\text {capacity of each bus}}$ gives least count of busses and least count is 9.

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4 years ago

a store has 800 T-shirts if 40 of the t-shirts are a size small what percent of the t-shirts are small

kicyunya [14]

5 percent of the shirts are small

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3 years ago