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melisa1 [442]
3 years ago
14

Rewrite the expression using addition -17.9 - 4.2

Mathematics
2 answers:
baherus [9]3 years ago
8 0
17.9 +4.2 = 22.1 expression using addition
Alexeev081 [22]3 years ago
5 0

You can say -17.9+(-4.2)

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The constant proportionality is whats left over
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3 years ago
What's the difference between partial variation and direct variation​
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Answer:

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8 0
3 years ago
What's 48 hours ahead from last night at ten? Exact hour pls?
Katena32 [7]
Tomorrow night at ten because 48 hours is two days. So two days from last night at ten.

6 0
3 years ago
Read 2 more answers
How would I solve and answer these two questions? I'm having a hard time understanding them.
postnew [5]

Answer:

The first one is either 88 feet or 90 feet

Step-by-step explanation:

8 0
3 years ago
A bridge connects to a tunnel as shown in the figure. The bridge is 180 feet above the ground, At a distance of 235 feet atong t
boyakko [2]
180^2 + 235^2 = (cliff base to point on bridge)^2
32400 + 55225 = 87625
so cliff base to point on bridge = sqrt of 87625.
Then notice 87625 + d^2 = (x+180)^2
since x^2 +235^2 = d^2,
substitute (x^2 + 235^2) for d^2, like this:
87625 + x^2 + 235^2 = (x+180)^2
87625 + x^2 + 55225 = x^2 + 360x + 32400
87625 + 55225 - 32400 = x^2 - x^2 +360x
360x = 110450
x = about 306.8 feet
h = x+180, so h = 486.8 feet
Remember d^2 = x^2 + 235^2, so
d^2 = 306.8^2 + 235^2
d^2 = 149354.6489
d = about 386.46 feet
6 0
3 years ago
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