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nadezda [96]
3 years ago
7

A=-2.3t-7 How fast did mr.mole descend?

Mathematics
2 answers:
Bingel [31]3 years ago
8 0

Answer:

2.3 meters per second.

Step-by-step explanation:

zaharov [31]3 years ago
7 0

Answer:

i am sorry i need points i don't have an answer

Step-by-step explanation:

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Solve the equation for all values of x by completing the square. Irrational <br> x^2+15=-10x
attashe74 [19]

Answer:

x=-1.8, x=-8.2

Step-by-step explanation:

7 0
2 years ago
Please answer quickly<br>expand and simplify: 4(5x-3y) (x-4y) -(3x-4y)(2x+3y)​
Gekata [30.6K]

Answer: 14x^2-93xy+60y^2 Hope that helps!

Step-by-step explanation:

1. Expand by distributing terms

(20x-12y)(x-4y)-(3x-4y)(2x+3y)

2. Use the Foil method:(a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(3x-4y)(2x+3y)

3. Use the Foil method : (a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(6x^2+9xy-8yx-12y^2)

4. Remove parentheses 20x^2-80xy-12yx+48y^2-6x^2-9xy+ 8yx+12y^2

5. Collect like terms (20x^2-6x^2)+(-80xy-12xy-9xy+8xy)+(48y^2+12y^2)

6. Simplify.

And your answer would be 14x^2-93xy+60y^2

5 0
2 years ago
How do I Use the numbers 8, 6, and 2 and one to write an expression that includes an exponent and has a value of 8.
liberstina [14]

Answer:

Step-by-step explanation:

8,6,2, and 1

(2^6 / 8) * 1  = (64/8) * 1 = 8 * 1 = 8

7 0
3 years ago
Jerome has 1/4 of the group's video games at his house. Mario has 2/5 of the video games at his house. what fraction of the grou
serious [3.7K]

Answer: 13/20 of the video games at both of their houses.


Step-by-step explanation: The equation is 1/4 + 2/5. You need to find their common denominator which is 20, so the equation is now 5/20 + 8/20 = 13/20, which can't be simplified.


6 0
3 years ago
Which function is the inverse of function f? f(x)=9x^2-12
Allisa [31]

Answer:

f−1(x)=√x+123,−√x+123

Step-by-step explanation:

5 0
2 years ago
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