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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:

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Please help me figure this out!!
SpyIntel [72]

Answer:

$400 \frac{18}{25} OR \frac{10018}{25}

Step-by-step explanation:

$400 stays the same, 72 cents is 72/100. Simplify and voila

6 0
2 years ago
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a woodworker wants to cut a board that is 5.775 feet long into 7 equal-length pieces. how long will each of the cut boards be?
Marta_Voda [28]
Just do 5.775/7 in your calculator
8 0
2 years ago
Which expressions are equivalent to the given expression 6x-18y+36
umka21 [38]

Answer:

6(x-3y+6)

Step-by-step explanation:

6 0
2 years ago
A rectangular magazine cover is photocopied by using a scale factor of One-third. The length of the photocopy of the magazine co
seraphim [82]

Answer: "reduced by a factor of One-third."

Step-by-step explanation:

Suppose that the original magazine has a length L and a width W.

If it is photocopied using a scale factor of K, then the measures of the photocopy will be:

length = K*L

Width = K*W

In this case, the scale factor is K = 1/3, then the measures of the photocopy will be:

length = (1/3)*L = L/3

Width = (1/3)*W = W/3

For usual notation:

When k > 1, we have an enlargement by a factor k

when 0 < k < 1, we have a reduction by a factor k

in this case, k = 1/3, then:

We have a reduction by a factor of 1/3

The correct option is:

"reduced by a factor of One-third."

7 0
3 years ago
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What strategy would you use to solve these facts involving 3 and 7?<br>8 x 3      7 x 4
iVinArrow [24]
8\cdot3=7\cdot3+3\\ 7\cdot4=7\cdot3+7
7 0
3 years ago
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