All categories

2 years ago

Round 39.472 to the nearest tenth

Mathematics

1 answer:

MrRissso [65]2 years ago

3 0

The answer is 39.470 because 39.472 is far from 39.450 and it’s 2 numbers passed 39.470.

You might be interested in

When the sum of \, 528 \, and three times a positive number is subtracted from the square of the number, the result is \, 120. F

aleksandr82 [10.1K]

Let $x$ be the unknown number. So, three times that number means $3x$ , and the square of the number is $x^2$

We have to sum 528 and three times the number, so we have $528+3x$

Then, we have to subtract this number from $x^2$ , so we have

$x^2-(3x+528)$

The result is 120, so the equation is

$x^2 - 3x - 528 = 120 \iff x^2 - 3x - 648 = 0$

This is a quadratic equation, i.e. an equation like $ax^2+bx+c=0$ . These equation can be solved - assuming they have a solution - with the following formula

$x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

If you plug the values from your equation, you have

$x_{1,2} = \dfrac{3\pm\sqrt{9-4\cdot(-648)}}{2} = \dfrac{3\pm\sqrt{9+2592}}{2} = \dfrac{3\pm\sqrt{2601}}{2} = \dfrac{3\pm51}{2}$

So, the two solutions would be

$x = \dfrac{3+51}{2} = \dfrac{54}{2} = 27$

$x = \dfrac{3-51}{2} = \dfrac{-48}{2} = -24$

But we know that x is positive, so we only accept the solution $x = 27$

6 0

3 years ago

What is the answer to this

klio [65]

Answer:

yes, the centroid is where the medians meet

hope this helps!

have a great day :)

3 0

2 years ago

Find the area D (1,3) F (-4,-3) E (4, -3)

tresset_1 [31]

Answer:

Step-by-step explanation:

FE=4+4=8

Altitude=3+3=6

area=1/2×FE×6=1/2×8×6=24 sq. units.

area=1/2×

I 1 3|

|-4 -3|

| 4 -3|

| 1 3|

=1/2[(-3+12)+(12+12)+(12+3)]

=1/2[9+24+15]

=1/2[48]

=24 sq. units

7 0

2 years ago

. 1 Briefly explain the difference between an employee and an employon

olchik [2.2K]

Answer:

Employers such as a company or organization that provide service or product to the employee and any person hire service from the employer, for which the employee has to pay. An employee is an individual or organization that work full time or part-time according to requirements and receive compensation for the services.

Step-by-step explanation:

8 0

2 years ago

Draw clearly the graph of the linear equation. y=1/2x, where x= (-4 -2, 0, 2, 4)

aniked [119]

Answer:

(in attachment)

Step-by-step explanation:

you can find the points by inputting the x-values into the equation to solve for the y-values, then connecting the plotted points to create the line.

When x=-4

y=1/2(-4)

y=-2

(-4,-2)

Repeat for all values.

6 0

2 years ago

Round 39.472 to the nearest tenth​

Round 39.472 to the nearest tenth