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3 years ago

Please answer the question shown in the attachment.

Mathematics

2 answers:

Virty [35]3 years ago

4 0

Answer:

a and c are correct bc f shape then 2 =4

kompoz [17]3 years ago

3 0

The correct choices are A, C, and D.

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On a number line, the coordinates of X, Y, Z, and W are negative 8, negative 6, 1, and 5, respectively. Find the lengths

bogdanovich [222]

Consider the coordinates of X, Y, Z, and W.

The given coordinates are X= -8, Y = -6,Z= -1 and W= -5.

We have to determine the length of segments XY and ZW.

XY = Y - X = -6-(-8) = -6 + 8 = 2 units

ZW = W - Z = -5-(-1) = -5+1 = -4 units

Since, the length of the segments are not equal.

Hence, XY and ZW are not congruent.

8 0

3 years ago

Complete the table by converting each decimal to a fraction. Show your work. Repeating decimals. 0.2, 0.5, 0.7

Helga [31]

Answers

Part 1 = 2/9

Part 2 =5/9

Part 3 =7/9

Explanation

To convert the a repeating decimals this are the steps;

Part 1

Let x = 0.222222... (i)

10x = 2.222222... (ii)

Subtract equation (i) from equation(ii)

10x = 2.222222....

-x = 0.222222....

9x = 2.00000..

∴ 9x = 2

Divide by 9 both sides;

x = 2/9

Part 2

Let x = 0.5555...

10x = 5.5555...

subtract equation (i) from equation (ii).

10x = 5.5555..

- x = 0.5555..

9x = 5.0000..

∴ 9x = 5

x = 5/9

Part 3

Let x = 0.7777....

10x = 7.7777...

Subtracting equation (i) from equation (ii)

10x = 7.7777...

-x = 0.7777...

9x = 7.000..

∴ 9x = 7

x = 7/9

Pattern noted

When converting the repeating decimals to fraction only one number was repeating. This made the three decimals have the same fraction.

5 0

4 years ago

One number is 10 times as large as another, and their difference is 81. Find the numbers.

Mashcka [7]

Answer:

10x

Step-by-step explanation:

smaller number is 9 and larger number is 90. The difference is 81.

6 0

4 years ago

The temperature, t, in degrees celsius, in a warehouse changes according to the function t(h) = 18 + 4sin(pi/12 (x = 8)).

egoroff_w [7]

The rate at which the temperature is changing at 9 a.m. is 19.03 degrees Celsius per hour

<h3>How to determine the rate at 9a.m?</h3>

The function is given as:

$t(h) = 18 + 4\sin(\pi/12(x - 8))$

9a.m is 9 hours since midnight.

This means that

x = 9

So, we have:

$t(h) = 18 + 4\sin(\pi/12(9 - 8))$

Evaluate

$t(h) = 18 + 4\sin(0.262)$

Evaluate the expression

t(h) = 19.03

Hence, the rate at which the temperature is changing at 9 a.m. is 19.03 degrees Celsius per hour