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4 years ago

14

If a(x) = 3x + 1 and b(x)=square root of x-4 , what is the domain of (b*a)(x)?

2 answers:

Paraphin [41]4 years ago

8 0

B. (0, +infinity)

When it is asked to know (b×a)(x), it is being asked to know what are the Y coordinates that are common in both graphs. When it a multiplication think of "and" - what are the Y that are on one graph and simultaneously on the other graph.
Design the graph of both functions on a calculator, or online, wherever. Then, look for when both functions have coordinates. All of them that are common to both graphs are the domain of (b×a)(x).

enot [183]4 years ago

4 0

Answer:

C. (1,infinity)

Step-by-step explanation:

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EMERGENCY (NEED HEP NOW!!!)

diamong [38]

Answer:

x=-2.25,y=-2.25

Step-by-step explanation:

The given system is

$4x - y = - 9 \\ 3x - 3y = 0$

We want to solve the system for x and y that makes the system true.

Let us multiply the first equation by 3 while maintaining the second equation:

$12x -3 y = - 27 \\ 3x - 3y = 0$

Subtract the current second equation from the first one.

$12x = - 27$

Divide through by 12:

$x = - \frac{27}{12} = - 2.25$

From the second equation we have:

$3x = 3y$

This implies that:

$x = y = - 2.25$

8 0

4 years ago

alicia's mom drove 265 miles on thursday and 478 miles on friday. she has 143 miles more to drive on saturday. about how many mi

prohojiy [21]

Answer:

she will drive a total of 886 miles

Step-by-step explanation:

8 0

3 years ago

Solve:<br>3 = -2v - V<br>V=

Y_Kistochka [10]

Answer:

V = −1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3=−2v−v

3=−2v+−v

3=(−2v+−v)(Combine Like Terms)

3=−3v

3=−3v

Step 2: Flip the equation.

−3v=3

Step 3: Divide both sides by -3.

<u>−3v</u> = <u>3</u>

-3 -3

v=−1

4 0

4 years ago

Read 2 more answers

How can you find this distance (-3,7),(0,4) in words

Bezzdna [24]

Answer:

The distance between these two given points is:

$3\sqrt{2}$

Step-by-step explanation:

We are given two points:

(-3,7),(0,4)

<em>The distance between two points (a,b) and (c,d) is given by the distance formula as:</em>

<em> $\sqrt{(c-a)^2+(d-b)^2$ </em>

similarly we can find the length of a line segment by considering the distance between the end points of the line segment.

So here (a,b)=(-3,7)

and (c,d)=(0,4).

Hence distance between these two points is given by:

$\sqrt{(0-(-3))^2+(4-7)^2}=\sqrt{(3)^2+(-3)^2}=\sqrt{9+9}\\ \\=\sqrt{18} \\\\=3\sqrt{2}$

6 0

4 years ago

Read 2 more answers

Is 2.5 closer to 0 or 5

Stolb23 [73]

Answer:

2.5 is closer to 0

Step-by-step explanation:

when using 2.5 you have to round down and if you round down you get 0 not 5.

4 0

3 years ago

Read 2 more answers