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Mathematics

2 answers:

aev [14]3 years ago

6 0

We evaluate the function at a known point.
We have that for x = 0
y = sin (x + 90)
y = sin (0 + 90)
y = sen (90)
y = 1
Then, the function sought will be:
y = sin (x + 90)
Answer:
y = sin (x + 90)
option A

Firdavs [7]3 years ago

4 0

The allknowing wanser is c

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Marc is looking at the plans for his new garage. the length of the garage is 8 metres. the scale on the drawing is 1:50. what wi

evablogger [386]

The answer is 16 cm (or 0.16 m).

The scale is the ratio of the model to the real thing.
So, in the scale 1:50, the model is 1, while the real thing is 50.
Now, just make a proportion:
the model : the real thing = the model dimension : the real thing dimension
1 : 50 = x : 8m

From here:
x = 8m * 1 / 50 = 0.16 m = 0.16 * 100 cm = 16 cm.

4 0

3 years ago

In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year. what integer represents the tota

mixer [17]

we are given

In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year.

so, total area =80000 acres

total time = 4 years

now, we can use formula

total change in wetlands = ( total area)/(total time)

now, we can plug values

total change in wetlands is