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AVprozaik [17]
3 years ago
5

What is the estimate for 7.98 + 4.89 + 5.12

Mathematics
1 answer:
erastovalidia [21]3 years ago
5 0

7.98+4.89+5.12=17.99 so the estimate would be 18.
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Anyone know how to solve this?
yuradex [85]

Answer:

<h2>\frac{16}{25}</h2>

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What is the exact value of tan 30° ? Enter your answer, as a simplified fraction, in the box.
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Hmmm if you don't have a Unit Circle, this is a good time to get one, many you can find online.  Anyhow, check your unit circle for cos(30°) and sin(30°).

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8 0
3 years ago
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Proof true or false: For all integers a,b,and c,if ab|c then a|c and b|c
olya-2409 [2.1K]

Answer with explanation:

It is given that for three integers , a, b and c, if

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or,

⇒a=u×v×c

b=s×t

So, whatever the integral values taken by a, and b, if \frac{ab}{c} then either of  \frac{a}{c} \text{or} \frac{b}{c} is true.

4 0
3 years ago
A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas​
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Answer:

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Acellus
shtirl [24]

Answer:

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Think of this in the future:

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90-degree --> (x,y) = (-y,x) ex. (3,2) --> (-2,3)

180-degree --> (x,y) = (-x,-y) ex. (3,2) --> (-3, -2)

270 degree --> (x,y) = (y,-x) ex. (3,2) --> (2, -3)

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90-degree --> (x,y) = (y, -x) ex. (3,2) --> (2, -3)

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