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denis-greek [22]
3 years ago
10

Jordan is kayaking upstream. The following equation model his speed: f(x) = 2x2 − 4x − 9, where x is Jordan's speed relative to

land. What is the domain of the function?
x ≥ 1
x ≤ −4
x ≥ −9
All real numbers
Mathematics
2 answers:
zalisa [80]3 years ago
8 0

Answer:

All real answers is the correct choice. D.

zhannawk [14.2K]3 years ago
4 0

Answer:

all real numbers .

Step-by-step explanation:

You might be interested in
(Use the Distributive Property to find an equivalent expression)<br> 2(3x-7y) = ?
IRINA_888 [86]

Answer:

(7y-3x)2

Step-by-step explanation:

It's the same thing but backwards

I hope this helps

6 0
2 years ago
If A = 3x power 2+2y + 2 and B=6x power 2 - 8y + 1 then A+B and A-B​
ollegr [7]

Answer:

see explanation

Step-by-step explanation:

Given A = 3x² + 2y + 2 and B = 6x² - 8y + 1 , then

A + B

= 3x² + 2y + 2 + 6x² - 8y + 1 ← collect like terms

= 9x² - 6y + 3

-------------------------------

A - B

= 3x² + 2y + 2 - (6x² - 8y + 1) ← distribute parenthesis by - 1

= 3x² + 2y + 2 - 6x² + 8y - 1 ← collect like terms

= - 3x² + 10y + 1

5 0
2 years ago
Can somebody help me with this?
ANEK [815]
The answer would be B
5 0
3 years ago
Read 2 more answers
I'm having trouble figuring out how I could go about this. Can someone work it out then explain so that I know how to do this ne
skad [1K]

Answer:

RT-ST=QS-ST, because subtracting the same quantity from two lines that have been stated to be equal.

Therefore RS=TQ

Angle R=Angle Q, because it is an isosceles triangle

Triangle AR

S is congruent to ATQ.

AT=AS

Because TAS is isosceles, angles 5 and 6 are equal.

Therefore, angles 4 and 7 are equal, because they are supplementary angles of the same angle.

And angles 1 and 3 are equal, because the other two angles in the triangle are equal.

The triangles RAT and QAS are congruent with SAS.

Step-by-step explanation: Can u gimme brain plz!

6 0
2 years ago
A<br> 2x + 5<br> 3x - 2<br> B+<br> X = [? ]
WITCHER [35]

Answer:   7

Step-by-step explanation:

They are alternate interior angle

2x + 5 = 3x -2

2x = 3x -7

-x = -7

x = 7

4 0
3 years ago
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