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enyata [817]
3 years ago
5

Which expression is equivalent to (-1.3x-4.5) - (-2.1x+3.6)?

Mathematics
1 answer:
timurjin [86]3 years ago
6 0

Equivalent expressions are expressions with the same value.

The equivalent expression of (-1.3x - 4.5)- (-2.1x + 3.6) is 0.8x -8.1

Given that:

(-1.3x - 4.5)- (-2.1x + 3.6)

Open brackets

(-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x - 4.5+ 2.1x - 3.6

Collect like terms

(-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x + 2.1x - 4.5 - 3.6

(-1.3x - 4.5)- (-2.1x + 3.6) = 0.8x -8.1

Hence, the equivalent of (-1.3x - 4.5)- (-2.1x + 3.6) is 0.8x -8.1

Read more about equivalent expressions at:

brainly.com/question/18257981

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The product of 2 √3 and 3 √12 simplified form is...
Serjik [45]
<h2>Greetings!</h2><h3>When multiplying two roots together, you can rearrange the equation so that the roots are next to each other and so are the whole numbers:</h3>

2 x 3 x \sqrt{3} x \sqrt{12}

<h3>This means that 2 x 3 is simple, = 6,</h3><h3>But when multiplying \sqrt{3} x \sqrt{12} you simply multply the two numbers and put them in a square root:</h3>

\sqrt{3} x \sqrt{12} = \sqrt{36}

<h3>But this can be square rooted to 6, which then means that the equation is now:</h3>

2 x 3 x 6 = 36

<h3>So the simplified form is 36.</h3>
<h2>Hope this helps!</h2>
3 0
3 years ago
3•(1+2)^2-4^2 evaluate
hammer [34]

Answer:

11

Step-by-step explanation:

3*(3)^2-16

27-16=11

3 0
3 years ago
If you're driving at a rate of 55 mph about how many feet per second are you traveling
Veronika [31]
55 miles is 290400 feet so you are driving at 290400 feet per hour now there are 60 minutes In an hours so divide
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4840 feet per minute
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7 0
3 years ago
Chloe drives from her house to her grandmas house 48 miles away in an hour and 12 minutes. How fast was she driving on average?
mestny [16]

Answer:

40 miles per hour

Step-by-step explanation:

change hours and minutes to hours

12 minutes  = 12 minutes * 1 hr/ 60 minutes = 12/60 hrs

12/60 = 1/5 = .2 hours

1 hours 12 minutes = 1.2 hours


48 miles in 1.2 hours

48/1.2 = 40 miles/hour


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