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guajiro [1.7K]
3 years ago
14

Express the area of the entire rectangle

Mathematics
1 answer:
Ludmilka [50]3 years ago
8 0

Answer:

x^2 + 6x + 8

Step-by-step explanation:

area of blue = x^2

area of pink= 2x

area of green=4x

area of brown=8

Adding all the area.

we get : x^2 + 6x +8

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A car in rush hour traffic travels 1/2 of a mile in 1/8 of an hour. If the car continues to travel at the same rate, how many mi
Maslowich
1/2 mile every 1/8 hour
Multiply by 8.
8/2 miles in 8/8 hours
4 miles per hour.
4 0
3 years ago
Which reaction describes a beta emission?  2659Fe→ 2759Co +  −10e  88226Ra→ 86222Rn +  24He ��94239Pu +  24He→ 96242Cm  +  01n  
shepuryov [24]

Correct question:

Which reaction describes a beta emission?  2659Fe→ 2759Co +  −10e,   88226Ra→ 86222Rn +  24He, 94239Pu +  24He→ 96242Cm  +  01n,  54118Xe→ 53118I +  +10e

Answer:

2659Fe→ 2759Co + 1e

Step-by-step explanation:

General equation for beta decay is given as;

^A_zX -> \ ^A_{z+1}Y +\  ^0_{-1} \beta

where;

A is the atomic mass of the element

z is atomic number of the element

X is the parent atom

Y is the daughter element

β is beta emission

In beta emission, there is loss of one electron and zero proton, the will cause the daughter element to gain on electron in order to balance the reaction.

Based on beta decay equation above, we select the reaction that describes beta emission.

2659Fe→ 2759Co + 1e

Here;

A = 59

z = 26

z + 1 = 27

5 0
3 years ago
Read 2 more answers
Vanessa found a less expensive “motivator” for her robot business. The old “motivator” cost $4.00; the new motivator cost $3.65.
aliya0001 [1]
4.00 - 3.65 = 0.35....so she saves 35 cents on each motivator

with 220 motivators...
0.35(220) = $ 77 <== what she saves
4 0
3 years ago
3/4 divided by 2/3 in simplest form
defon
9/8 because in dividing you multiply by the reciprocal so 3/4 x 3/2= 9/8
6 0
3 years ago
Read 2 more answers
Find angle A using sin-1
ki77a [65]

Answer:

75°

Step-by-step explanation:

firstly, use the pythagoras theorem

Square root(8²-2²) = 7.75

Then, use sine

sine A= 7.75/8

Sine A=0.9688

A= (sine power of -1) x (0.9688)

A=75.63

5 0
3 years ago
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