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3 years ago

ALGEBRA 2- If f(x)= √x-3 , which inequality can be used to find the domain of f(x)?

Mathematics

2 answers:

Fed [463]3 years ago

8 0

B, because you can't get the square root of a negative number

baherus [9]3 years ago

6 0

Answer:

Option B

Step-by-step explanation:

The given equation function is f(x) = $\sqrt{x-3}$

Domain of this function will be determined by (x-3) ≥ 0

because square root of negative numbers is not defined.

Option B is the answer.

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HELP!!!! Choose the correct answer. Which expression, when evaluated,

blagie [28]

We will check each options and verify it

(a)

$18-2m$

we can plug m=2

$18-2\times 2$

$18-4$

$14$

so, this is FALSE

(b)

$7x-\frac{x}{3} >19$

we can plug x=3

$7\times 3-\frac{3}{3} >19$

$21-1 >19$

$20 >19$

so, this is TRUE

(c)

$6x-1>4x+5$

we can plug x=3

$6\times 3-1>4\times 3+5$

$18-1>12+5$

$17>17$

so, this is FALSE

(d)

$2x^2-3x+1$

now, we can plug x=2

$2(2)^2-3(2)+1$

$8-6+1$

$3$

So, this is FALSE

8 0

3 years ago

Evaluate the limit. lim x ? 5 (x-5)^2/x-5

slega [8]

As x approaches 5
hmm, we can divide the (x-5) from top and bottom to get x-5
if we input 5 for x we get
5-5=0
it approaches 0 as x approaches 5

7 0

3 years ago

How many pounds are equivalent to 40 oz

Tanzania [10]

Answer:

Step-by-step explanation:

40 ounces equal 2.5 pounds (40oz = 2.5lbs). Converting 40 oz to lb is easy.

4 0

3 years ago

Read 2 more answers

A politician running for mayor in her city wants to know her chances of winning an upcoming

STatiana [176]

Answer:

Ask people who live in different neighborhoods throughout the city.Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

You are dealt a hand of three cards, one at a time. Find the probability of each of the following. a) The first heart you get

boyakko [2]

Answer:

a) 0.145

b) 0.013

c) 0.783

d) 0.586

Step-by-step explanation:

a) there are always 52 cards in total, 13 hearts

Pa = 39/52 × 38/51 × 13/50 = 19266/132600 = 257/1700 =0.145

b) there are always 13 diamonds in a complete card

Pb = 13/52 × 12/51× 11/50 = 11/850 = 0.013

c) there are always 4 aces, and 48 that are not aces

Pc = 48/52 × 47/51 × 46/50 = 4324/5525 = 0.783

d) there are 13 hearts,to get at least one heart we have.

Pd = 1 - p

Where p is the probability of no hearts

p = 39/52 × 38/51 × 37/50 = 703/1700 = 0.414

Pd = 1 - 0.414

Pd = 0.586

4 0

3 years ago