Answer:
The answer: is 3,995
Hope this help you enjoy :D
Step-by-step explanation:
Answer:
15ft by 18ft
Step-by-step explanation:
Start with 2.5 divided by .25
That equals 10
10 times 1.5 ,because we know it takes ten .25inches to equal 2.5 and 2.5, is the size of one of the sides.
10 time 1.5 is 15ft
3 divided by .25 is 12
using the same logic and math as stated above we know 3 x .25 equals 12 by 12 quarter inches to make 3 inches
12 x 1.5 Same logic as before
12 x 1.5 equals 18ft
The kitchen is 15ft by 18ft
Answer:
there are nine dogs
Step-by-step explanation:
9 + 9 = ? We find out by addition, if there are 18 cats nine more cats than dogs; it is quite simple 9 and 9 is 18, so the number of dogs should be equal to the number of cats. hope this helps : )
3) x² - 121 = 0
x² = 121
x' = +√121
x' = 11
_______________
x'' = - √121
x'' = -11
Solution ⇒ S{-11 ; 11 } or (x-11)(x+11)
4) 4x² + 144 = 0
4x² = -144
x² = -144 / 4
x² = -36
x = √-36
No solution ⇒ S = ∅
5) z²+10z+21 = 0
Δ = 10² - 4(1)(21)
Δ = 100 - 84
Δ = 16
x' = (-10+4) / 2 = -6/2 = -3
x'' = (-10-4) / 2 = -14/2 = -7
Solution ⇒ S{ -7 ; -3} or (x+3)(x+7)
