3 years ago

Help me please ASAP !!!! Please

Mathematics

2 answers:

solniwko [45]3 years ago

7 0

Answer:

Step-by-step explanation:

4 x 10000 x 320 x 8 x 100000

=10240 x 1000,000,000

=10,240,000,000,000

Pls mark me as brainliest :>

sdas [7]3 years ago

5 0

Answer:

Step-by-step explanation:

$(4 \times 10^4)(3.2 \times 10^{-2}) \div (8 \times 10^5)\\\frac{4 \times 3.2 \times 10^{4-2}}{8 \times 10^5}\\=1.6 \times 10^{2-5}\\=1.6 \times 10^{-3}$

You might be interested in

A certain ferry moves up and down a river between Town A and

Blizzard [7]

Answer: 60 miles

Step-by-step explanation:

Given

It takes ferry 2 hours to travel to town A and only $1.5\ hr$ to travel back to town B.

Speed of current is $u=5\ mph$

Suppose the speed of the ferry is $v$ mph

Distance traveled in both the cases is same, but it took more time traveling to city A that is, ferry is moving upstream and downstream for returning time.

$\Rightarrow 2(v-5)=1.5(v+5)\\\Rightarrow 2v-10=1.5v+7.5\\\Rightarrow 0.5v=17.5\\\Rightarrow v=35\ mph$