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4 years ago

13 13 13 13 = 43. Which multiplication expression shows another way to make 43?

1 answer:

6 0

13+13+13+13=52, not 43 .
43 is a prime number therefore the only two factors are 1 and itself, Technically, you can say that 21.5 multiplied by 2 would be 43.

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2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.

Setler [38]

answer: 9

Step-by-step explanation:

x = - 4; y = 3; z = 2;2 x² - 2 z^4 + y² - x² + z^4 = = 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 == 2 * 16 - 2 * 16 + 9 - 16 + 16 = = 32 - 32 + 9 - 16 + 16 = 9

5 0

3 years ago

Does 4/7 lies between the numbers -3/5 and 3/4

Nesterboy [21]

one way to do this is to convert each fraction to same denominator ( the LCD)

Well we can eliminate -3/5 because its negative so 4/7 is definitely > -3/5.

4/7 = 16/28 and 3/4 = 21/28

so 4/7 < 3/4

Therfore 4/7 does lie between the 2 fractions

8 0

3 years ago

Read 2 more answers

Find the area and the circumference of the circle. Round your answers to the nearest hundredth.

Alik [6]

Answer:

$area = 200.96 \: {units}^{2} \\ circumfrence = 50.24 \: units$

Step-by-step explanation:

The formula to find the area and circumference of a circle is:

$area = \pi {r}^{2} \\ circumfrence = 2\pi \: r$

*note that pi is 3.14* Therefore the area is:

$formula = \pi {r}^{2} \\ 3.14 \times {8}^{2} = \\ 3.14 \times 64 = 200.96$

Therefore the circumference is:

$formula = \: 2\pi \: r \\ (2)(3.14)(8) = \\ 3.14 \times 16 = 50.24$

3 0

2 years ago

HELP! I'm not really sure what I'm supposed to do

Angelina_Jolie [31]

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8 0

3 years ago

Show all ways you can use to find the area of the rectangle

marin [14]

• WxL (width multiplied by length)!l
• creating a two right angled triangles, finding the area through the Pythagoras theorem for both triangles and then add both areas together

6 0

3 years ago