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3 years ago

How to simplify this equation ? (3xy) (9y)

Mathematics

2 answers:

Alexandra [31]3 years ago

8 0

Hope this helps and I hope u get the answer right and pass

Helen [10]3 years ago

4 0

Answer:

27 xy^2

Step-by-step explanation:

(3xy) (9y)

Multiply

3*9 =27

xy*y = xy^2

Combine

27 xy^2

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Help pure people pls

Sedaia [141]

Answer:

Option (B). Perimeter of the quadrilateral ABCD= 14.6 units

Step-by-step explanation:

From the figure attached,

Coordinates of the vertices are A(3, 5), B(1, 3), C(3, -1), D(5, 3).

Length of AB = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

= $\sqrt{(3-1)^2+(5-3)^2}$

= $\sqrt{8}$

= 2.83 units

Length of AD = $\sqrt{(3-5)^2+(5-3)^2}$

= $\sqrt{8}$

= 2.83 units

Length of BC = $\sqrt{(1-3)^2+(3+1)^2}$

= $\sqrt{20}$

= 4.47 units

Length of DC = $\sqrt{(5-3)^2+(3+1)^2}$

= $\sqrt{20}$

= 4.47 units

Perimeter of the quadrilateral = AB + AD + DC + BC

= 2.83 + 2.83 + 4.47 + 4.47

= 14.6 units

Option (B) is the answer.

7 0

3 years ago

The sum of ruqiyo’s age and Mohammed’s age is 117. Five times ruqiyo’s age is 9 more than 3 times mohammed’s age. How old is eac

Bess [88]

Answer:

45 and 72

Step-by-step explanation:

Let the ages be r and m

We have:

r + m = 117
5r = 9 + 3m

Substitute m in the second equation and solve for r:

m = 117 - r
5r = 9 + 3( 117 - r)
5r = 9 + 351 - 3r
5r + 3r = 360
8r = 360
r = 360/8
r = 45

Then m is

m = 117 - 45 = 72

3 0

3 years ago

Complete the number sentence:

rewona [7]

D divide by 1000… you are shifting the decimal 3 places (there are 3 zeros in 1000) you are dividing because the number is getting smaller.

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2 years ago

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A diver descended 46.2 feet in 14.0 minutes. What was the diver's average change in elevation per minute?

Vaselesa [24]

Answer: 3.3 per minute

Step-by-step explanation:

46.2 / 14.0 = 3.3

3.3 * 14.0 = 46.2

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3 years ago

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Points N, P, and R all lie on circle O. Arc PR measures 120°. Circle O is shown. Line segment P N is a diameter that extends out

hram777 [196]

Answer:

Step-by-step explanation:.

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3 years ago

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