MATHEMATICS HIGH SCHOOL

Which property could be used to find the missing number?(–8 + 3.1) • (4.2 + 7) = (4.2 + 7) • (–8 + )

A.
commutative property

B.
associative property

C.
distributive property

Answers

Answer 1
Answer: It's A. Commutative property.

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Factor the perfect square trinomial 4x^2– 20x + 25.

Answers

Answer:

(2x-5)^(2)

Step-by-step explanation:

To practice for a competition, Genevieve swam 710 meters in the pool each day for 4 weeks. How many kilometers did Genevieve swim in those 4 weeks? please hurry, I hate zearn

Answers

Answer: Genevieve swam approximately 19.88 kilometers

Step-by-step explanation:

Find the slope of the line

Answers

Answer:

m = -0.25

Step-by-step explanation:

First coordinate : (-4, 3)

Second coordinate : (0, 2)

x1 = -4

x2 = 0

y1 = 3

y2 = 2

To find a slope, we can use this formula :

m = (y2 - y1)/(x2 - x1) \nm = (2 - 3)/(0 - (-4)) \nm = (-1)/(4)\nm = -0.25

So in conclusion, the slope of the line is -0.25

Jay's father is twice as old as Jay. In 20 years Jay will be two thirds as old as his father. How old is each now? Show your solution.

Answers

Jays father could be 40 while Jay is 20, because in twenty years Jay would be 40 and his dad 60 and 40 is two thirds of 60

Find all values of m so that the function y = e^mx
is a solution of the given differential equation. y' + 9y = 0

Answers

Hello,

y=e^(mx)
y'=m*e^(mx)

0=y'+9y=m*e^(mx)+9*e^(mx)
==> e^(mx)*(m+9)=0
This must be exact for every  value of ,so
m=-9

Plzz help, will mark brainlest!

Answers

☝that person in correct
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