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Vesna [10]
3 years ago
8

In which case do you need to reverse the inequality sign when solving an inequality?

Mathematics
1 answer:
VashaNatasha [74]3 years ago
7 0
When multiplying or dividing by a negative number. this changes the sign because, when you divide/multiply by a negative number, you're changing the sign on BOTH sides of the inequality. what was originally negative would become positive, and vice versa. because of that, you have to flip the sign.

if you DON'T flip the sign, you usually end up with a "backwards" inequality, such as 4 < x, but the rules tell you to write "4 is less than x" as "x is greater than 4" (x > 4) so you end up rearranging the sign anyways--it's just easier to do it as you go.
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Put in order from least to greatest: quart, pint, gallon, liter, cup
cricket20 [7]
From least to greatest
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4 0
3 years ago
1. Find an algebraic representation for an exponential function if it is known that f(x + 1) = 4.f(x)
MrMuchimi

f(x)=4^{x-1} is the algebraic representation for an exponential function

Step-by-step explanation:

Given:

f(x + 1) = 4.f(x)

f(3) = 16

To Find:

Algebraic representation for an exponential function=?

Solution:

From the formula f(x+n) = 4^n f(x)

when n= 1, x= 3

f(3+1)= 4(1)f(3)

f(4)= 4f(3)

Substituting the value of f(3)

f(4)= 4f(3)

f(4)= 4 x 16  

f(4)= 64

f(4)=4^2

f (5) = 4^2 x 16

f (5) = 4^2 x  4^2

f(5)= 4^4

Similarly,

F(6) = 4^5

Hence, f(x)=4^{x-1}

4 0
3 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic
lidiya [134]

Answer: A

Step-by-step explanation:

The first thing we need to do is to make sure our equation is in standard form. The given equation is not in standard form.

3x²-2x=0

Now that the equation is in standard form, we can find our A, B, C to see which quadratic equation is correct.

A=3

B=-2

C=0

We can automatically eliminate D because the first value is -3 when it is supposed to be -(-2). Also, the denominator is supposed to be 2a. We know that A=3. The denominator should be 2(3), not 2(-2).

Next, we can eliminate B and C. For the 4ac, we know it has to be 4(3)(0) because A=3 and C=0. B and C have given 4(3)(2) and 4(3)(1), respectively. This does not match A=3 and C=0.

Therefore, A is the correct answer.

4 0
3 years ago
Answer for brainilest 11 points
TEA [102]

Answer:

729 is 3 to the power of 6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is Factor 64b-16c to identify the equivalent expressions.
liubo4ka [24]
Answer:
16(4b - c)

Explanation:
16 x 4b = 64b
16 x c = 16c
3 0
3 years ago
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