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riadik2000 [5.3K]
3 years ago
9

Which expression can be used to represent the phrase Lamar decreased his collection of cards by seven

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0

Answer:

x-7

Step-by-step explanation:

Let

x------> Lamar's collection of cards

The algebraic expression of the phrase "Lamar decreased his collection of cards by seven" is equal to subtract the number seven from  Lamar's collection of cards

so

x-7

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vagabundo [1.1K]

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y=2x-2

Step-by-step explanation:

in slope intercept form we need make in this formula..

y=Mx+c

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A washer and a dryer coat $774 combined. The washer costs $74 more than the dryer. what is the cat of the dryer?
zhenek [66]

Answer:

$350

Step-by-step explanation:

Cost of both combined $774 washer is $74 more than the dryer.

$774-$74=$700

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I'm confused, I'm used to doing these problems with both coordinates :/
Lynna [10]

Answer:

{0, 1, 16, 81}

Step-by-step explanation:

If the domain of this function is the set {0, 1, 4, 9}, we find the set representing the range by evaluating the function at each of the four values in the domain.

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7 0
3 years ago
What is this? anyone help​
qwelly [4]

Answer:

-a^2 -a -35

Step-by-step explanation:

a(4-a) -5(a+7)

Distribute

4a -a^2 -5a-35

Combine like terms

-a^2+4a -5a-35

-a^2 -a -35

4 0
4 years ago
Which set of steps can be used to prove the sine sum identity, sin(x + y) = sin(x)cos(y) + cos(x)sin(y)? Use the complementary r
Vilka [71]

Answer:

[A]  use the complementary relationship between sine and cosine to rewrite sin(x + y) as cos(pi/2-(x+y)). apply the cosine sum identity. then simplify using sin(–y) = –sin(y) and cos(–y) = cos(y).

Step-by-step explanation:

i got it right

screw that other person l0l

note that sin(-x)=-sin(x) and cos(-x)=cos(x)

so sin(-y)=-sin(y) and cos(-y)=cos(y)

or something like that idfk

7 0
3 years ago
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