I need help asap!!!!!!!! thanks

Mathematics

1 answer:

Ksju [112]3 years ago

5 0

Answer:

Step-by-step explanation:

range of a function is the number interval of the y (function) values.

the domain is the number interval of the x (input) values.

this function has only one constant functional value : -5

so the range is the set with only that one value.

B. no, the line goes across all possible values of x.

it is therefore not limited to a single value.

C. see B. therefore, true.

D. see A. no, only one value.

E. is simply a wrong statement. it would not be a function, if there is an x that has more than one y value. but that is not the case here. every x value has exactly one y value. they are all the same, but that does not matter.

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Help! WHAT IS THE VALUE OF X, and can you show how you got it please?

miss Akunina [59]

See the picture attached with letters to better understand the problem

in the right triangle ABD
applying the Pythagoras theorem
8²=AD²+(x+4)²-----> AD²=64-(x+4)²------> equation 1

in the right triangle ADC
applying the Pythagoras theorem
12²=AD²+(2x+1)²-----> AD²=144-(2x+1)²------> equation 2

equate equation 1 and equation 2
64-(x+4)²=144-(2x+1)²-------> 64-[x²+8x+16]=144-[4x²+4x+1]
64-x²-8x-16=144-4x²-4x-1
4x²-x²-8x+4x=144-1-64+16
3x²-4x=95
3x²-4x-95=0

using a graph tool----> to resolve the second order equation
see the attached figure N 2
the solution is
x=6.33

the answer is
x=6.33 units

3 0

3 years ago

Please I really need help 100 points

Afina-wow [57]

Multiply the first equation by 3 and the second equation by 2:

$\begin{cases}6x-9y=27\\6x+10y=8\end{cases}$

Subtract the two equation to get rid of the x variable:

$-9y-10y=27-8 \iff -19y = 19 \iff y = -1$

Use the value of y to determine the value of x: for example, using the first equation we have

$2x+3=9 \iff 2x=6 \iff x=3$

4 0

3 years ago

Read 2 more answers

The time a basketball player spends in the air when shooting a basket is called the "hang time." the vertical leap l measured i

Marina86 [1]

Dénote l the vertical leap, then the given equation can be written like this:
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The hang time equates then 3 seconds

7 0

4 years ago

Pls help!!!

natka813 [3]

Answer:

The area of the base B is equal to $770\ cm^{2}$