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4 years ago

7

How do I express 1/2 of the difference of a number cubed and one?

1 answer:

Dvinal [7]4 years ago

8 0

1/2(x^3-1) is how you would express 1/2 of the difference of a number cubed and one. Putting 1/2 on the outside of the parentheses multiply all number inside of the parentheses by 1/2. X^3 represents an unknown number, cubed. The difference of a number cubes and one is x^3-1.

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Find the area of △ABC with side lengths b = 6 and c = 17, and included angle A = 135∘. Round your answer to the nearest tenth.

Levart [38]

Answer:

$A=36.1\ units^2$

Step-by-step explanation:

we know that

The area of a triangle applying the law of sines is given by the formula

$A=\frac{1}{2}(b)(c)sin(A)$

where

A is the included angle between the sides b and c

substitute the given values

$A=\frac{1}{2}(6)(17)sin(135^o)=36.1\ units^2$

4 0

3 years ago

Could someone please help me? Will mark brainlist!

Kobotan [32]

X=26
Because 90-38=52
52/2=26

6 0

3 years ago

Read 2 more answers

How to solve a-2+3=-

sweet-ann [11.9K]

A-2+3= -2
⇒ a+ (-2+3)= -2 (combine like terms)
⇒ a+ 1= -2
⇒ a= -2-1
⇒ a= -3

Final answer: a=-3~

4 0

3 years ago

The sum of the digits of a two-digit number is 11. when the digits are reversed, the number increases by 27. find the original n

gtnhenbr [62]

The sum of the digits of a two-digit number is 11. when the digits are reversed, the number increases by 27. find the original number.

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3 years ago

Brendan's dog has a mass of 25,700 grams. What is the dog's mass in milligrams? Show your work.

Snezhnost [94]

Answer:

25700000

Step-by-step explanation:

1,000 miligrams in a gram so 25700*1000 = 25700000

8 0

3 years ago