2 years ago

A submarine at -28 feet dives 40 feet. what is the submarine's elevation after the dive

Mathematics

1 answer:

Neporo4naja [7]2 years ago

8 0

The submarine is 68 feet below sea level, which is -68

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A distance of 30 miles on a map is represented by a 2-inch line. If the map is enlarged to 3 times its size, what will be the sc

vichka [17]

Answer:

$\frac{1}{5}\frac{in}{miles}$

Step-by-step explanation:

we know that

The original scale of the map is

$\frac{2}{30}\frac{in}{miles}=\frac{1}{15}\frac{in}{miles}$

If the map is enlarged to 3 times its size

then

the new scale will be

$\frac{2*3}{30}\frac{in}{miles}=\frac{6}{30}=\frac{1}{5}\frac{in}{miles}$

4 0

2 years ago

Have a go at this one!

Sonbull [250]

Answer:

I THINK 96

Step-by-step explanation:

11x11=121

5x5=25

121-25=96

7 0

2 years ago

Dani's estimate for the cost of tiling her bathroom floor is $100 plus $5 per square foot.

polet [3.4K]

Answer:

y=5x+100

Step-by-step explanation:

x represents every square foot

5 0

2 years ago

Solve u^2 = -4, where u is a real number. Simplify your answer as much as possible.

alexdok [17]

Answer:

2i and -2i

Step-by-step explanation:

I'll change u to x to be easier to understand.

x^2 = -4

sqrt(x^2) = sqrt(-4)

sqrt(-4) = 2i, or -2i

8 0

1 year ago

The Malcolms are taking a trip. Midville is 214 miles

Juliette [100K]

Answer:

642 miles

Step-by-step explanation:

Distance of Midville from their home = 214 miles

Walesburg is 3 times as far.

How far is Walesburg from their home?

Distance of Walesburg from their home = 3 × Distance of Midville from their home

= 3 × 214 miles

= 642 miles

Distance of Walesburg from their home = 642 miles

8 0

2 years ago