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horsena [70]
3 years ago
5

Simplify the expression: 9r + -5r + 7 - 4 + -2r + -4

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
7 0

Answer:

2r-1

I would appreciate if my answer is chosen as a brainliest answer

Amiraneli [1.4K]3 years ago
4 0
The photo has an answer for you

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Please help I suck at math and I have no clue how to do this!!
katrin2010 [14]

Answer:

a- increase slowly

b- decrease quickly

c-increase quickly

d-decrease slowly

7 0
3 years ago
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A car travels 20 1/2 miles in 2/3 of an hour. What is the average speed, in miles per hour, of thr car?
zmey [24]

Answer:

27.33333... mph

Step-by-step explanation:

Find 1/3 of 20 1/2: 1/3*41/2=41/6

That equals 6.83333...

Now add 20 1/2 and 6.83333 = 27.3333...

Therefore, 27.33333... mph

3 0
3 years ago
Please find the m∠DEY
GrogVix [38]

Answer:

41, x=-5

Step-by-step explanation:

m<DEY = m<FEY, by angle bisector theorem

(9x-4) = 41

9x = 45

x = 5

m<DEY = 41

6 0
3 years ago
Which function is the inverse of f(x) = 2x + 3?
lianna [129]

Answer:

y = 1/2x - 3/2

Step-by-step explanation:

The easiest way to find the inverse is to switch x and y and solve for y.

y = 2x + 3

x = 2y + 3 (Switch)

x-3 = 2y (Subtract y from both sides)

x/2 - 3/2 = y (Divide both sides by 2)

8 0
3 years ago
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For the Best Brain:<br><br> fun question:<br> how do I solve y = 10x + 2 when x equals 3
allsm [11]
You would plug in 3 for x, which gives you y = 10(3) + 2, and then you would use PEMDAS, which means you multiply 10 with 3 and then add two which is 32. Therefore y would equal 32. :D :D
5 0
4 years ago
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