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Ket [755]
3 years ago
13

Combine the like terms to create an equivalent expression 2r+1+(-4r)+7

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

2r+1+(-4r)+7

2r+8-4r

-2r+8<--- answer

Step-by-step explanation:


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earnstyle [38]
Its like ones true then ones false it goes in that pattern
3 0
2 years ago
Lily is a botanist who works for a garden that many tourists visit. The function f(s) = 2s + 30 represents the number of flowers
Vesnalui [34]

Answer:

  A. b(w) = 80w +30

  B. input: weeks; output: flowers that bloomed

  C. 2830

Step-by-step explanation:

<h3>Part A:</h3>

For f(s) = 2s +30, and s(w) = 40w, the composite function f(s(w)) is ...

  b(w) = f(s(w)) = 2(40w) +30

  b(w) = 80w +30 . . . . . . blooms over w weeks

__

<h3>Part B:</h3>

The input units of f(s) are <em>seeds</em>. The output units are <em>flowers</em>.

The input units of s(w) are <em>weeks</em>. The output units are <em>seeds</em>.

Then the function b(w) above has input units of <em>weeks</em>, and output units of <em>flowers</em> (blooms).

__

<h3>Part C:</h3>

For 35 weeks, the number of flowers that bloomed is ...

  b(35) = 80(35) +30 = 2830 . . . . flowers bloomed over 35 weeks

7 0
2 years ago
Which of the following rational functions is graphed below? A. F(x) = B. F(x) = C. F(x) = D. F(x) =
EastWind [94]

Answer:

The answer is D or A

Step-by-step explanation:

7 0
3 years ago
Y
Inessa05 [86]

Answer:

I'd help but I cant read down try typing it left to right instead of top to bottom

7 0
2 years ago
What is the equation for the line in slope-intercept form? Enter your answer in the box.
klio [65]

Step-by-step explanation:

let eqn be y = mx + b.

m = (5 - (-11))/(0 - 4) = -4

sub (0, 5):

5 = -4(0) + b

b = 5

therefore, eqn is y = -4x + 5

Topic: coordinate geometry

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

6 0
2 years ago
Read 2 more answers
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