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3 years ago

(T/F) unknow values are represented with variables that can be any letter. which one true or false

Mathematics

1 answer:

Ivenika [448]3 years ago

8 0

Answer:

True.

Step-by-step explanation:

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Choose the correct simplification of the following: (2x^2 + x - 1) - (x^2 + 3x – 5)

yKpoI14uk [10]

Answer:

x^2 - 2x + 4

Step-by-step explanation:

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3 years ago

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kozerog [31]

You answer for a. show be 200+600-1 should e lil tj

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3 years ago

Please solve these equations much appreciated

Reptile [31]

Answer:

Part c) $V=16,500\ m^3$

Part d) $V=93,312\pi\ mm^3$ or $V=292,999.68\ mm^3$

Step-by-step explanation:

Part c) Find the volume of the inverted rectangular pyramid

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the rectangular base

h is the height of pyramid

Find the area of the base B

$B=(60)(15)=900\ m^2$

$h=55\ m$

substitute

$V=\frac{1}{3}(900)(55)$

$V=16,500\ m^3$

Part d) Find the maximum volume of tea in the tea cup

we know that

The volume of cylinder (tea cup) is equal to

$V=\pi r^{2}h$

we have

$r=36\ mm\\h=72\ mm$

substitute

$V=\pi (36)^{2}(72)$

$V=93,312\pi\ mm^3$ -----> exact value

Find the approximate value

assume

$\pi =3.14$

$V=93,312(3.14)=292,999.68\ mm^3$

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3 years ago

Write the fraction as a decimal 1/2

torisob [31]

1.2 is it as a decimal or 0.5

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3 years ago

Read 2 more answers

45 of the 80 children in the club or girls what was the ratio of boys to girls in the club?

Oxana [17]

There are 80 children. 45 of them are girls. The amount of boys is equal to:

$80-45 = 35$

That means there are 45 girls and 35 boys.

The ratio of boys to girls is: $35:45$

Simplify:

$35 \div 5 = 7 \\ 45 \div 5 = 9 \\ \\35:45 \rightarrow 7:9$

Your answer is 7:9

5 0

3 years ago

(T/F) unknow values are represented with variables that can be any letter. which one true or false ​

(T/F) unknow values are represented with variables that can be any letter. which one true or false