3 years ago

Select the graph that does not represent two quantities in a proportional relationship.

Mathematics

1 answer:

Lerok [7]3 years ago

5 0

The answer is b since it does not touch the origin! (0,0)

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3 years ago

Riley is currently 4 times as old as her brother. If Riley was 11 years old 5 years ago, how old is Riley's brother now?

Sonbull [250]

Riley's age = r
Riley's brother's age = r/4

If Riley was 11 five years ago, Riley is currently 11 + 5 years old, or 16 years old.

Now we just need to use r/4 to find Riley's brother's age:

16 /4 = 4

Riley's brother is 4 years old.

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4 years ago

Stephanie just redecorated her bedroom. She wants to paint but needa to know the surface area of the door to see if she has enou

zhuklara [117]

Answer:

The surface area of door is 33 680 cm².

Step-by-step explanation:

Given that the surface area of a cuboid which is the 3D of rectangle is :

$s.a = 2(l \times w) + 2(l \times h) + 2(w \times h)$

$let \: l = 80 \\ let \: w = 3 \\ let \: h = 200$

$s.a = 2(80 \times 3) + 2(80 \times 200) + 2(3 \times 200)$

$s.a = 2(240) + 2(16000) + 2(600)$

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3 years ago

Describe a rectangular prism using words such as surfaces

vivado [14]

The surfaces are the faces of the prism. The vertices are the points of the prism, where three sides intersect. You can also call them corners. To find the volume, you multiply length and width and height.

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masya89 [10]

Answer:

-18

Step-by-step explanation:

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