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Westkost [7]
3 years ago
8

Use properties to prove that the expressions are equivalent. Complete the statements. Prove 7x - 4x = 3x. Use the distributive p

roperty to factor out the x, and the expression becomes . Complete the subtraction inside the parentheses, and the expression becomes . Use the commutative property of multiplication, and the expression becomes
Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Answer:

First one is x(7-4)

Second one is x(3)

Third one is 3x

Step-by-step explanation: Plz mark brainliest

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How do i do this question? please help
valina [46]
Put the event number at the bottom where it say event
3 0
3 years ago
Solve the following factorize and the en- equation of quadrate equation X² + 5x + 7 x = 0​
nlexa [21]

Answer:

{-12,0}

Step-by-step explanation:

first to solve this can collect like terms and add

X² +12x=0

and solve it by factorization method

X² +12x=0

x(x+12)=0

it means x multiplied by x = X² then x multiplied by 12 = 12x

so this means x or (x+12) equals to zero

x=0 and (x+12)=0

x+12=0

x=-12

so the solution set is {-12,0}

but can also be done by formula method

8 0
2 years ago
A line has a slope of 7 and passes through the point (-2,-1) What is its equation in point-slope form?
elena-s [515]

Answer:

y + 1 = 7(x + 2).

Step-by-step explanation:

Point slope form:

y - y1 =m(x - x1).

Here m = 7 and (x1,  y1) = (-2,  -1)

So the answer is;

y - (-1) = 7(x - (-2))

5 0
3 years ago
16+(c+17)=(16+c)+17 ....what property is this?
Pavel [41]

It's is the Associative Property. I hope that helps!
4 0
3 years ago
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When plucked, the high E string on a guitar has a frequency of 330 cycles per second. What sine function represents this note wh
Ber [7]

Let's analyse the function

y = f(x) = A\sin(\omega x)

The amplitude is A, so we want A=1.5

Now, we start at x=0, and we have 1.5\sin(0)=0

After one second, i.e. x=1, we want this sine function to make 330 cycles, i.e. the argument must be 330\cdot 2\pi

So, we have

f(1)=1.5\sin(\omega) = 1.5\sin(660\pi)

so, the function is

f(x) = 1.5\sin(660\pi x)

4 0
3 years ago
Read 2 more answers
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