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3 years ago

There were 2100 people on saturday and 4900 on sunday whats the estimated difference of the 2 days

2 answers:

5 0

<span>Since there were 2100 people on saturday and 4900, lets do the math..
#1) Line up the numbers, when it comes to adding it doesn't really matter which goes on the top.
#2) Add or use a calculator for help.
#2b 4900-2100=2800
Thats all!
Hope this help!
@SamSamySamantha

</span>

padilas [110]3 years ago

3 0

2800 hope this answer helps you

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Chris wants to order DVDs over the internet.

Nuetrik [128]

Step-by-step explanation:

14d +9 <100

14d represents cost for dvds. 9 is the flat rate shipping. all must be less than 100

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3 years ago

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A particle moves along a line so that its position at any time t > 0 is given by the function s(t) = - t3 + 7t2 - 14t +8 wher

eimsori [14]

Answer:

s(5) = -12

Step-by-step explanation:

s(t) = - t³ + 7t² - 14t +8

Find the displacement during the first 5 seconds.

When t = 5

s(t) = - t³ + 7t² - 14t +8

s(5) = -5³ + 7(5)² - 14(5) + 8

= -125 + 7(25) - 70 + 8

= -125 + 175 - 70 + 8

= -12

s(5) = -12

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2 years ago

Solve the inequality. -45<-9k would the answer be 5>k or 5

Mashutka [201]

Answer:

5 > k

Step-by-step explanation:

-45 < -9k

Switch sides

-9k > -45

Multiply both sides by -1 (reverse the inequality)

( -9k )( -1 ) < ( -45 )( -1 )

Simplify

9k < 45

Divide both sides by 9

9k/9 < 45/9

Simplify

K < 5

8 0

2 years ago

Which is bigger 4/7 or 3/5

romanna [79]

3/5 is bigger because 4/7 = 20/35 and 3/5 = 21/35

8 0

2 years ago

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A triangular plaque has side lengths of 8 inches, 13 inches, and 15 inches.

lianna [129]

<h3>Answer: A) 52 square inches</h3>

==========================================================

Explanation:

a = 8, b = 13, and c = 15 are the sides of the triangle

s = (a+b+c)/2 = (8+13+15)/2 = 18 is the semi-perimeter, aka half the perimeter.

Those values are then plugged into Heron's Formula below

$A = \sqrt{s*(s-a)*(s-b)*(s-c)}\\\\A = \sqrt{18*(18-8)*(18-13)*(18-15)}\\\\A = \sqrt{18*(10)*(5)*(3)}\\\\A = \sqrt{2700}\\\\A = \sqrt{900*3}\\\\A = \sqrt{900}*\sqrt{3}\\\\A = 30\sqrt{3}\\\\A \approx 51.9615\\\\A \approx 52\\\\$

The triangular plaque has an area of approximately 52 square inches.

6 0

2 years ago