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3 years ago

Which number(s) below represents a repeating decimal? -2/3, -3/5, 3/10, 11/20

Mathematics

2 answers:

m_a_m_a [10]3 years ago

8 0

-2/3 is the only one representing a repeating decimal. When you divine 2 by 3, you get .6 repeating.

expeople1 [14]3 years ago

3 0

-2/3, which is equal to -0.66666666.... is the only number that is equivalent to a repeating decimal

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Assume the sales representative calls 6 customers, and each call has 4 possible results: reaches the customer in person, gets an

KonstantinChe [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find thhe remainder when 7^203 is divided by 4

Aleksandr [31]

Using the square-and-multiply approach, we have

$7^{203}=7\times(7^{101})^2$
$7^{101}=7\times(7^{50})^2$
$7^{50}=(7^{25})^2$
$7^{25}=7\times(7^{12})^2$
$7^{12}=(7^6)^2$
$7^6=(7^3)^2$
$7^3=7\times7^2$

and so, using the property that, if $a_1\equiv b_1\mod n$ and $a_2\equiv b_2\mod n$ , then $a_1a_2\equiv b_1b_2\mod n$ , we get

$7\equiv3\mod4$
$7^2\equiv9\equiv1\mod4$
$7^3\equiv7\times1\equiv7\equiv3\mod4$
$7^6\equiv9\equiv1\mod4$
$7^{12}\equiv1\mod4$
$7^{25}\equiv7\times1\equiv7\equiv3\mod4$
$7^{50}\equiv9\equiv1\mod4$
$7^{101}\equiv7\times1\equiv7\equiv3\mod4$
$7^{203}\equiv7\times9\equiv3\times1\equiv3\mod4$

4 0

3 years ago

What is the area of ruth's mural?

pentagon [3]

Answer:

Step-by-step explanation:

Comment

The shape consists of a rectangle on the bottom and a trapezoid on the top.

Rectangle

A rectangle has a very simple Area formula. It is Area = L*W. In this case the L = 14 m and is horizontal. The width is at right angles to the length and is marked as 3.

Area = L * w

L = 14

w = 3

Area = 14 * 3 = 42 m^2

Trapezoid

The trapezoid is a bit more complicated and some things have to be found. First of all b1 is the first base of the trapezoid. It is parallel to and equal to the Length of the rectangle. b2 is marked 10 meters. The height is just a bit more complicated. The total height of the figure is 8 m. You can't count the 3 m of the rectangle as part of the height because b1 comes only to the top of the rectangle. The height is 8 - 3 = 5

Area = 1/2(b1 + b2)*h/2

b1 = 14

b2 = 10

h = 8 - 3 = 5

Area = 1/2 ( 14 + 10) * 5 / 2

Area = 1/2 (24)*5

Area = 12 * 5

Area = <u> 60 m^2</u>

Total Area 102 m^2

8 0

2 years ago

Simplify the square root of 2 multiplied by the square root of 18

zimovet [89]

The answer is 9 for sure

5 0

3 years ago

If it’s right I will mark you Brainly!!

Free_Kalibri [48]

Answer:

y=x+20

y= 1x + 20

Step-by-step explanation:

The formula for slope is y= mx+ b

m is the slope and b is the y-intercept (where the line touches the y-axis

4 0

3 years ago