2 years ago

4a2 - 1c) 2а – За – 2

Mathematics

1 answer:

hammer [34]2 years ago

5 0

I think that’s factoring

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1.the ratio if the weight of an object on mars to its weight in earth is 9 to 25.If a person weighs 120pouns on earth,how much w

Ilya [14]

Question #1
$\frac{9}{25}=\frac{x}{120}\\\\120(9) = 25x\\\\1080 = 25x\\\\x= 43.2$

For #1, the answer is 43.2

Question #2
$\frac{6}{5} = \frac{2580}{x} \\\\2580(5) = 6x\\\\12900 = 6x\\\\x = 2150$

For #2, the answer is 2150

8 0

2 years ago

What is the value of y?<br><br> Enter your answer, as an exact value, in the box.

Amanda [17]

So for the 40-40-90 degree triangle, whenever the two legs are x values, then the hypotenuse is x value times the square root of 2.

--> a changed into a√2
√2 changed in √2 * √2
= 2

So the hypotenuse of the 40-40-90 degree triangle is 2.

Now for the 30-60-90 degree triangle, the smallest leg with the value of x is then changed to the value of x√3 if finding the longer leg.

-> a is changed to a√3
2 is changed into 2√3

So, y is 2√3 or approximately 3.46 units.

3 0

2 years ago

Read 2 more answers

3(7x-1)=4x+6 please answer me at least two or three people

scoray [572]

Answer:

Step-by-step explanation:

3(7x-1)=4x+6 distribute

21x - 3 = 4x + 6 combine similar terms

21x - 4x = 6 + 3 simplify

17x = 9

x = 9/17