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Sergio039 [100]
3 years ago
8

Which expression represents the number that is four times as large as the sum of 8 and 160

Mathematics
1 answer:
saul85 [17]3 years ago
3 0

Answer:

7

Step-by-step explanation:

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If 8 g of a radioactive substance are present initially and 2 yr later only 4 g remain, how much of the substance will be presen
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Answer:

none

Step-by-step explanation:

8-4=4

if every 2 years, 4 gallons disappear

then every 1 year, 2 gallons disappear

meaning that by 5 years there will be no substance left.

(5*2=10)

7 0
2 years ago
64 decreased by twice vanessas height as an algebraic expression
Dima020 [189]

Let vanessa's height = v.

twice of vanessa's height = 2v

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3 0
3 years ago
2 meters equal blank millimeters
Artyom0805 [142]
2 meters equal 2000 milimeters
7 0
3 years ago
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About how much difference in average leaf width would you find in two forests whose average annual rainfalls are near 1500 mm bu
goblinko [34]

Answer:

4.80 mm to 2 d.p

Step-by-step explanation:

w = f(r)

f'(r) = (dw/dr) = (0.0218 mm/mm)

So, for a small difference in rainfall of 220 mm, what is the corresponding small difference in width of leaves in the two forests given.

One definition of a derivative or a rate of change is that it is the ratio of very small differences in the dependent variable to very small differences in the independent variable.

Mathematically,

(dw/dr) = (Δw/Δr) for very small Δw and Δr.

0.0218 = (Δw/220)

Δw = 0.0218 × 220 = 4.796 mm = 4.80 mm to 2 d.p

Hope this Helps!!!

5 0
3 years ago
GEOMETRY NEED HELP AS SOON AS POSSIBLE
Aneli [31]

Answer:

BAC=15

Step-by-step explanation:

angle BOA= 180-30= 150

triangle BAO is   isosceles because it has two equal sides, radii of a circumference so the angles ABO=BAO=(180-150)/2=15

4 0
3 years ago
Read 2 more answers
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