4 years ago

5. What

Mathematics

1 answer:

elena55 [62]4 years ago

7 0

X=3a+b I think is the equation

You might be interested in

Help me plz I neeed

dybincka [34]

AnsWER:

shaded: 40% unshaded 60%

Step-by-step explanation:

ONLY 4 ROWS ARE SHADED

non shaded are 6 rows

10 rows in total

8 0

3 years ago

Read 2 more answers

Mera is making a food guide for health class. She needs the measurements of this picture to enlarge it for a poster. Remember to

astraxan [27]

Answer:

you gatta show the picture

Step-by-step explanation:

5 0

4 years ago

The population of Mexico has been increasing at an annual rate of 1.7% . If the population was 100,350,000 in the year 2000, pre

damaskus [11]

2015-2000=15 years P=100,350,000×(1+0.017)^(15) P=129,220,575.43

6 0

3 years ago

Read 2 more answers

Please answer ASAP!!!!

trasher [3.6K]

Answer:

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Tutorial Exercise A boat leaves a dock at 2:00 PM and travels due south at a speed of 20 km/h. Another boat has been heading due

ANTONII [103]

Answer:

Both the boats will closet together at 2:21:36 pm.

Step-by-step explanation:

Given that - At 2 pm boat 1 leaves dock and heads south and boat 2 heads east towards the dock. Assume the dock is at origin (0,0).

Speed of boat 1 is 20 km/h so the position of boat 1 at any time (0,-20t),

Formula : d=v*t

at 2 pm boat 2 was 15 km due west of the dock because it took the boat 1 hour to reach there at 15 km/h, so the position of boat 2 at that time was (-15,0)

the position of boat 2 is changing towards east, so the position of boat 2 at any time (-15+15t,0)

Formula : D= $\sqrt{(x2-x1)^2+(y2-y1)^2}$

⇒ $D = \sqrt{20^2t^2+15(t-1)^2}$

Now let $F(t) = D^2(t)$

∵ $F'(t) = 800t + 450(t-1) = 1250t -450\\F'(t) =0$

⇒ t= 450/1250

⇒ t= .36 hours

⇒ = 21 min 36 sec

Since F"(t)=0,

∴ This time gives us a minimum.

Thus, The two boats will closet together at 2:21:36 pm.

3 0

3 years ago