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ZanzabumX [31]
3 years ago
13

Shirley is decorating the gym for a party. She has 5 rolls of blue streamer and 9 rolls of green streamer.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
4 0

Answer:

rolls of blue streamer: 5×98=49

rolls of green streamer: 9×82=738

total rolls: 49+738=787

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On a coordinate plane, 2 triangles are shown. The first triangle has points M (negative 5, 4), N (negative 2, 3), and L (negativ
worty [1.4K]

Answer:

The rule of the reflection is rx-axis(x, y) → (x, –y) ⇒ 3rd answer

Step-by-step explanation:

Let us revise the reflection on the axes

If point (x , y) reflected across the x-axis , then its image is (x , -y) , the rule of reflection is rx-axis (x , y) → (x , -y)

If point (x , y) reflected across the y-axis , then its image is (-x , y) , the rule of reflection is ry-axis (x , y) → (-x , y)

In Δ LMN

∵ L = (-4 , 2)

∵ M = (-5 , 4)

∵ N = (-2 , 3)

In ΔL'M'N'

∵ L' = (-4 , -2)

∵ M' = (-5 , -4)

∵ N' = (-2 , -3)

The signs of y-coordinates of the vertices of Δ LMN are changed, that means Δ LMN are reflected across the x-axis

∵ The y-coordinate of L is 2 and the y-coordinate of L' is -2

∵ The y-coordinate of M is 4 and the y-coordinate of M' is -4

∵ The y-coordinate of N is 3 and the y-coordinate of N' is -3

∴ Δ LMN is reflected across the x-axis

∴ The image of point (x , y) is (x , -y)

The rule of the reflection is rx-axis(x, y) → (x, –y)

7 1
3 years ago
Read 2 more answers
Simplify 3x + (-12x) - 5x.
lutik1710 [3]
3x - 12x - 5x
= 3x - 17x
= - 14x

answer
-14x
4 0
3 years ago
Read 2 more answers
This is a full 30 points from a overdue quiz and I’m failing this class plzz help
erastova [34]

Answer: Just use a protractor lol...

Step-by-step explanation:

6 0
3 years ago
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Mark can clear a lot in 1.5 hours. His partner can do the same job in 3.5 hours. How long will it take them to clear the lot wor
IrinaK [193]

Answer:

2.5 hours.

Step-by-step explanation:

This is the answer because you will need to add both of their times together then divide it by 2. You divide it by two because there are 2 people.

8 0
3 years ago
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7. GEOGRAPHY The discharge of a river
Rama09 [41]

Answer:

10 m

Step-by-step explanation:

Given:

The discharge of water is equal to the product of of its width, its average depth and its speed.

Let D be discharge of water, w be its width, h be its average depth and v be its speed.

So, D=vwh

As per question,

D=3198\textrm{ }m^{3},w=533\textrm{ m},v=0.6\textrm{ }m/s

Plug in the above values and solve for h.

3198=0.6\times 533\times h\\3198=319.8h\\h=\frac{3198}{319.8}=10\textrm{ m}

Therefore, the average depth of the Mississippi river is 10 m.

8 0
3 years ago
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