2 years ago

Round to the nearest

Mathematics

1 answer:

dedylja [7]2 years ago

3 0

Answer:

where is the question?

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Sam needs a web designer. Designer A is offering her services for an initial $500 in addition to $100 per hour. Designer B is of

gavmur [86]

Answer:

2 hours

Step-by-step explanation:

Let's denote the amount of time we need to find out, t.

=> 600 + 50t < 500 + 100t

or 600 - 500 < 100t - 50t

or 100 < 50t

or 100/50 < t

or t > 2

=> After 2 hours, company B will be cheaper option than company A

3 0

2 years ago

What is 0.00078 in scientific notation?

frozen [14]

Answer: 7.8 x 10^-4

4 0

2 years ago

Subtract 6 1/3 - 4 1/9

Debora [2.8K]

Answer:

2 2/9

Step-by-step explanation:

6 0

3 years ago

Adam would like to buy a used car, and collected several data to evaluate the best model (such as age, price, weight, etc.) Than

9966 [12]

Answer: There is a strong association between age and weight.

Step-by-step explanation:

The correlation coefficient (r) is used to describe the relationship between two variables.

$-1\leq r\leq1$

If r lies between -1 to -0.5 or 0.5 to 1, then there is strong association between them.

Here, Variables: Age and weight.

correlation coefficient = 0.512

That means, there is a strong association between age and weight.

8 0

2 years ago

Expand (3x+2)^4 and show your work.

AysviL [449]

You have to distribute the exponent of 4 to the whole equation.
so step one is to distribute to the 3
3^4= 81
then we have to distribute to the x
x^4
then to the 2
2^4= 16
81 * x^4 * 16
* = multiplication sign

7 0

2 years ago

Round to the nearest​

Round to the nearest