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Crank
4 years ago
15

Find the value of the expression 4a^4-2b^2+40 when a = 2 and b=7

Mathematics
1 answer:
Sonbull [250]4 years ago
6 0

6 would be your answer

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over the next 30 years,some estimates place the worlds population going from roughly 7.2 billion people in the world to 10 billi
vredina [299]

Answer:

Current impact in pollution units per day=21.6 billion pollution units per day

Step-by-step explanation:

1 person consumes 3000 kilo-calories per person

Current population=7.2 billion people

Total calories the entire population produces=(7.2 billion×3000)

1000 kilo-calories causes= 1 pollution unit

To get the impact of the entire population=(7.2 billion×3000)/1000=21.6 billion pollution units per day

8 0
3 years ago
Draw quick pictures to show the number 326
denpristay [2]
Heres how u make 3 large boxes to show 3 hundreths 2 skinny rectangles to show 2 tens and 6 lil boxes to show 6 ones all together youve got 326!

8 0
4 years ago
Which pair shows equivalent expressions?<br> (Look at picture)
Leona [35]

Answer:

-2x - 10 = -2(x + 5)

Step-by-step explanation:

-2x - 10 is already simplified, but in order to understand the solution, we need to simplify -2(x + 5) in order to show that it is an equivalent expression:

-2(x + 5) = -2x - 2(5)

Further simplify:

-2x - 10

This proves that -2x - 10 = -2(x + 5) is an equivalent expression.

8 0
4 years ago
The slope of the perpendicular ​
Paul [167]
Answer: 1/4x

The slope of the line in the graph is -4x so the negative reciprocal of that is 1/4x. Hope this helps! :)
6 0
3 years ago
Read 2 more answers
What is the circumference of a circle with a radius of 50 that’s not rounded
lorasvet [3.4K]

Answer:

100π

Step-by-step explanation:

The equation of the circumference of a circle is C=2πr.

So to get an answer that not rounded you would keep the π and multiply 50 by 2= 100

4 0
3 years ago
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