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3 years ago

Domain: I need the domain

Mathematics

1 answer:

masha68 [24]3 years ago

6 0

Answer:

Domain:The set of possible input values (using the “x” variable), which produce an output from a function.

Step-by-step explanation:

have a great day :)

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The sum of two numbers is 52. The greater number is 4 more than the smaller number. Which equation can be used to solve for the

Arisa [49]

Answer:

x+(x+4)=52

Step-by-step explanation:

Let's name the smaller number x.

The greater number would then be (x+4).

The sum of two numbers means we are adding them together.

The equation we could then set up would be:

x+(x+4)=52

Now we can solve the equation to find the two numbers if needed.

Here is how:

x+x+4=52

Combine like terms.

2x+4=52

Subtract 4 from both sides.

2x=48

Divide both sides by 2

x=24

The smaller number is 24.

24+4=28

The larger number is 28.

6 0

3 years ago

Dividing rational expressions

Galina-37 [17]

$\bf \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
\cfrac{x+3}{x^2-2x}\cdot \cfrac{(x-2)^2}{x^2-9}\implies \cfrac{x+3}{x^2-2x}\cdot \cfrac{(x-2)(x-2)}{x^2-3^2}
\\\\\\
\cfrac{x+3}{x(x-2)}\cdot \cfrac{(x-2)(x-2)}{x^2-3^2}\implies \cfrac{\underline{x+3}}{x\underline{(x-2)}}\cdot \cfrac{\underline{(x-2)}(x-2)}{(x-3)\underline{(x+3)}}
\\\\\\
\cfrac{x-2}{x(x-3)}\iff\cfrac{x-2}{x^2-3x}$

5 0

2 years ago

1. Find the domain and range of the function f(x)=√1-4x².

slamgirl [31]

$f(x) = \sqrt{1 - 4{ x}^{2} }$

$1 - 4x {}^{2} \geqslant 0$

$- \infty \: \: \: \: \: \: \: \: - 0.5 \: \: \: \: \: \: \: \: \: 0.5 \: \: \: \: \: \: \: \: \infty \\ - \: \: \: \: \: \: \: \: \: \: \: \: \: \:0 \: \: \: \: \: + \: \: \: \:0 \: \: \: \: \: -$

$domain \\ [ \: -0.5 \: , \: 0.5 \: ]$

$g(x) = 1 - 4x {}^{2} \\ g'(x) = - 8x \\ g'(x) = 0 \\ x = 0 \\ g(0) = 1 - 4(0) = 1 \\ maximum \: = 1$

$range \\ [ \: 0 \: , \: 1 \: ]$

5 0

2 years ago

Read 2 more answers

How is triangle QRT congruent to triangle QST? Is it by SAS, AAS, ASA, SSS, the definition of congruence, or CPCTC?

BabaBlast [244]

Answer:

ASA

Step-by-step explanation:

6 0

3 years ago

Quick please it’s for a test today

RUDIKE [14]

Answer:

A) 18/3 or 6 bracelets

Step-by-step explanation:

If it take 3/2 hours to make 1 bracelet, then it will take 9 hours to make 9/(3/2) bracelets. This means that the number of bracelets Jasmine can make in 9 hours following this proportional relationship is 18/3 or 6 bracelets.

6 0

3 years ago