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3 years ago

Help please and thank you ❤

Mathematics

1 answer:

Monica [59]3 years ago

8 0

Answer:

In the pictures below

Step-by-step explanation:

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If i= radical -1 then i^2=

katovenus [111]

Answer:

-1

Step-by-step explanation:

i²=√-1*√-1=-1

6 0

3 years ago

Every day, Marco runs for 45 minutes and covers 5 miles. How long would it take him to run 2 miles?

vichka [17]

45 divided by 5 is 9, so it takes 9 minutes to cover 1 mile.
9 x 2 = 18.

8 0

3 years ago

Find the later area of the figure

o-na [289]

Answer:

$\large\boxed{60\pi\ sq.in.}$

Step-by-step explanation:

The formula of a lateral area of a cone:

$L.A.=\pi rl$

r - radius

l - lateral height

We have the radius r = 6in and the height H = 8in.

Use the Pythagorean theorem to calculate the lateral height:

$l^2=6^2+8^2\\\\l^2=36+64\\\\l^2=100\to l=\sqrt{100}\\\\l=10\ in$

Substitute:

$L.A.=\pi(6)(10)=80\pi\ in^2$

3 0

3 years ago

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

One pump will fill 200l in 20 minutes

So the rate of filling per pump will be 10l/minute (200/20)

Let the number of minutes it will take to fill the 600l be x minutes

Now, since the rate of filling per pump is 10 l/minute

Then in x minute, they would have filled 10l/minute * x = 10x liters

So it is now this 10x liters that will be equal to 600

To find x, we simply divide

10x = 600

x= 600/10

x = 6 minutes

4 0

3 years ago

you download a video game on your computer. you have a 60-minute free trial of the game. it takes 5 1/6 minutes to set up the ga

iren2701 [21]

Answer:

B. $5\frac{1}{6}+(7\frac{1}{3})l \leq 60$

Step-by-step explanation:

Given,

The time for set up the game = $5\frac{1}{6}$ minutes,

Also, the time for each level of game is $7\frac{1}{3}$ minutes,

If there are l levels of games,

Then the time taken in all levels of game = $(7\frac{1}{3})l$

Hence, the total time ( in minutes ) = Set up time + time in all level

= $5\frac{1}{6}+(7\frac{1}{3})l$

We have 60-minute of free trial of the game,

So, the total time taken can not be exceed to 60 minutes,

$\implies 5\frac{1}{6}+(7\frac{1}{3})l \leq 60$

Which is the required inequality.

Option 'B' is correct.

5 0

4 years ago

Read 2 more answers