2 years ago

A student wrote the expression: 2(5x + 3) what are two expressions that are equivalent to the student's expression

Mathematics

1 answer:

fredd [130]2 years ago

8 0

Answer:

$\frac{(20x+12)}{2}$ and $\sqrt{100x^2+36}$

Step-by-step explanation:

The expression 2(5x + 3) equals 10x + 6

One other way to get 10x + 6

$\frac{(20x+12)}{2}$

finally, you could do:

$\sqrt{100x^2+36}$

You might be interested in

400 pounds per 340 square feet” as a rate in simplest form

Airida [17]

400lbs/340ft^2

Factor out largest common factor. LCF is the product of shared primes of the numbers prime factorization.

400=2*2*2*2*5*5, 340=2*2*5*17

So the product of the shared primes is 2*2*5=20, so divide the numerator and denominator by 40.

(400/20)lbs/(340/20)ft^2

20lbs/17ft^2 or if you prefer

(20/17)lbs/ft^2

(1 3/17)lbs/ft^2 or approximately

1.18 lbs/ft^2

4 0

3 years ago

Suppose that daycare costs are normally distributed with a mean equal to $10,000 a year and a standard deviation equal to $2,000

notka56 [123]

Answer:

50%, 68.26%, 95.54%

Step-by-step explanation:

Let X be the day care costs

X is N(10000, 2000)

Since normal distribution is symmetrical about the mean we get

above 10000, exactly 50% of day care cost would be .

Between 8000 and 12000,