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uysha [10]
3 years ago
9

Evaluate the function for x = –2a, if a = 3. f(x)= -4x+7

Mathematics
1 answer:
wariber [46]3 years ago
7 0
I got -17; hoped you liked it
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lexi bought 1 2\5 pounds of green grapes and 2 3\10 pounds of red grapes. Grapes are 2.99 a pound. Did lexi spend more or less t
prisoha [69]

Answer:

Less than $12

Step-by-step explanation:

I changed everything into decimals to make it easier to solve:

1 2/5= 1.4

2 3/10= 2.3

1.4+2.3=3.7

2.99·3.7=11.063 (Round it to the nearest hundredth and you get 11.06)

7 0
3 years ago
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Which statement would produce a tautology?
andreyandreev [35.5K]
Tautology is when something is repeated in a sentence but using different words. It can be used to enrich the sentence but also it can be needless repetition.

5 statements that would produce a tautology:

1. Lets order a toast sandwich. 
2. In my opinion, I think he is right. 
3. The Gobi is a very dry desert.
4. The hurricane hit in 3 p.m. in the afternoon. 
5. Don't worry, everything is well and good.
3 0
3 years ago
PLEASE HELP ME I REALLY NEED IT
kenny6666 [7]

Answer:

y = 8x+0

Step-by-step explanation:

The slope is

m = (y2-y1)/(x2-x1)

   = (-8-0)/(-1-0)

   -8/-1

   8

The y intercept is 0 since it goes through (0,)

The slope intercept form of the equation is

y = mx+b

y = 8x+0

6 0
4 years ago
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Remove the parentheses from the following expression, and combine like terms.<br> 2x(y-z) + x(y+z)
wel
2x(y-z)+x(y+z)
2xy-2xz+xy+xz
like terms.(2xy+xy=3xy)(-2xz+xz=-xz)
=3xy-xz

7 0
4 years ago
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What is the percent of 80 out of 246
GenaCL600 [577]

Answer:

33%

Step-by-step explanation:

Divide 246 and 80 and move the decimal over twice and round.

3 0
3 years ago
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