3 years ago

What is the value of 28 tens?

Mathematics

1 answer:

Vladimir [108]3 years ago

5 0

The value would be 280

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Prove the following relations: <br>1) (1 - cos²A) (1 + tan²A) = tan²A

liberstina [14]

Step-by-step explanation:

(1 - cos²A) (1 + tan²A) = tan²A

(sin²A)(sec²A) = tan²A

(sin²A)(1/cos²A) = tan²A

(sin²A)/(cos²A) = tan²A

tan²A = tan²A → <u>Proved</u>

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3 years ago

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Given the following coordinates complete the glide reflection transformation.

Romashka [77]

Answer:

$A" = (7,-2)$

$B" = (10,0)$

$C"= (12,-3)$

Step-by-step explanation:

Given

$A = (4,2)$

$B = (7,0)$

$C =(9,3)$

a: Reflect over x-axis

The rule of this is:

$(x,y) \to (x,-y)$

So, we have:

$A' = (4,-2)$

$B' = (7,0)$

$C' = (9,-3)$

b: Shift 3 units left

The rule of this is:

$(x,y) \to (x+3,y)$

So, we have:

$A" = (4+3,-2)$

$A" = (7,-2)$

$B" = (7+3,0)$

$B" = (10,0)$

$C"= (9+3,-3)$

$C"= (12,-3)$

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3 years ago

What is the surface area ?

vodomira [7]

The answer will be 50 because if you are doing Area the formula is length times width therefore you would multiply all the numbers and you will end up with 50 feet cubed

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3 years ago

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You measure age (years), weight (pounds), and marital status (single, married, divorced, widowed) of 1400 women. How many varia

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C. 3

The age, weight, and marital status' are the variables.

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3 years ago

-6=2/9x please solve

kodGreya [7K]

$-6=\frac{2}{9}x\\ \\ -6*\frac{9}{2}=x \\ \\ -27=x$

Hope this helps!

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4 years ago

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