All categories

3 years ago

Round 13.2 to a whole number

Mathematics

2 answers:

omeli [17]3 years ago

8 0

13 because decimal is 4 or below let it rest or 5 or more go up one more

MAVERICK [17]3 years ago

7 0

13.... the tenth decides if it goes up or down... 5+ next number, 4- you leave the whole number and erase the decimals.

You might be interested in

Help please. I need the answer fast.

dezoksy [38]

When you multiply exponents with the same base, you add the exponents.
3+-5+y=-2
-2+y=-2
y=0

Final answer: y=0

4 0

2 years ago

Mrs. Carson pays Kristen $48 for babysitting 6 hours, and Mr. Vasquez pays her $67.50 for babysitting 9 hours. Who pays Kristen

yaroslaw [1]

To solve this problem you must divide the total salary by the total hours to figure out how much is earned each hour

$48/6 hours = $8 per hour
$67.50/9 hours = $7.50 per hour

Mrs. Carson pays Kristen the better salary by $0.50 an hour.

8 0

3 years ago

Use the rectangle hexagon with side length 10 meters to fill in the missing information

Vlada [557]

Answer:

$A_h=150\sqrt{3}\ m^2$

Step-by-step explanation:

<u>Regular Hexagon</u>

For the explanation of the answer, please refer to the image below. Let's analyze the triangle shown inside of the hexagon. It's a right triangle with sides x,y, and z.

We know that x is half the length of the side length of the hexagon. Thus

$x=5 m$

Note that this triangle repeats itself 12 times into the shape of the hexagon. The internal angle of the triangle is one-twelfth of the complete rotation angle, i.e.

$\theta=360/12=30^o$

Now we have $\theta$ , the height of the triangle y is easily found by

$\displaystyle tan30^o=\frac{x}{y}$

Solving for y

$\displaystyle y=\frac{x}{tan30^o}=\frac{5}{ \frac{1} {\sqrt{3} }}=5\sqrt{3}$

The value of z can be found by using

$\displaystyle sin30^o=\frac{x}{z}$

$\displaystyle z=\frac{x}{sin30^o}=\frac{5}{\frac{1}{2}}=10$

The area of the triangle is

$\displaystyle A_t=\frac{xy}{2}=\frac{5\cdot 5\sqrt{3}}{2}=\frac{25\sqrt{3}}{2}$

The area of the hexagon is 12 times the area of the triangle, thus

$\displaystyle A_h=12\cdot A_t=12\cdot \frac{25\sqrt{3}}{2}=150\sqrt{3}$

$\boxed{A_h=150\sqrt{3}\ m^2}$

6 0

3 years ago

A plan for a house is drawn on a 1:40 scale. If the length of the living room on the plan measeres 4.4in, what is the actual len

anzhelika [568]

Since it's on a 1:40 scale, you just multiply 4.4in by 40, to get 176in. That's the actual length.

7 0

3 years ago

3. What is the difference of a number and 10?

Nezavi [6.7K]

Answer:

the difference between a number and 10 simply means ,that number minus 10

hope it helps. please do me a favor and Mark me Brainleist please please please please please please please please please please please please please please please please please please please please.

7 0

3 years ago