Please someone help me with this question below i am really stuck.
1 answer:
9514 1404 393
Answer:
£59.25
Step-by-step explanation:
The tricky part here is finding the height of the trapezoid shape of the lawn. You will notice the difference in lengths of the parallel edges is 20-12 = 8 meters. This means you can use the Pythagorean theorem to find the missing height, as it is the second leg of a right triangle with one leg 8 and hypotenuse 17.
h^2 = 17^2 -8^2 = 289 -64 = 225
h = √225 = 15
So, the lawn's shape is a trapezoid with bases 20 and 12 and height 15. These can go into the area formula ...
A = 1/2(b1 +b2)h
A = 1/2(20 +12)(15) = 240 . . . . . . square meters
__
That area is 2.4 times 100 square meters. That means 2.4 cans of weedkiller are all that are needed. If we can only purchase whole cans, then we need to purchase 3 cans of weedkiller, for a cost of ...
£19.75 × 3 = £59.25
The cost of the cans of weedkiller needed will be £59.25.
You might be interested in
Answer:
1. 34.42 Toneladas
2. 28.640 toneladas
3. 38 toneladas
4. o
5. o
6. o
1.1 Solucioné el problema convirtiendo el .25 en fracción.
2.1 Conviertes el denominador en el mismo buscando el minimo comun multiplo
3.1 0.099
0.7
0.75
1.1
Step-by-step explanation:
Acuerdate que para solucionar las fracciones mixtas solo tienes que dividir el denominador al nominador, por ejemplo en si tienes entonces el 3 cabe 3 veces en el 10, y sobra 1, entonces quedamos que en mixta la fracción sería
Entonces una vez que recordamos eso, podemos resolver los problemas de fracciones sin ningún problema vamos a resolver la número 4:
Como el denominador es igual, sólo sumamos el nominador:
Cómo el 10 cabe 1 vez en el 15, tenemos un entero y sobran 5:
I believe it is false because it only passes through the y-axis not the x-axis.
check the picture below.
now, we're assuming the trapezoid is an isosceles trapezoid, namely AD = BC, and therefore the triangles are twins.
incidentally, b is the height of the trapezoid and likewise is also the altitude or height of the concrete triangle.
so we can simply get the area o the trapezoid, notice the bottom base is a+185+a, and then get the area of the concrete triangle and subtract the triangle from the trapezoid, what's leftover is just the vegetation area.
so that's the area of the trapezoid, now let's get the area of the triangle.
since we know 36 yd² cost 12 bucks, then how much will it be for 39475.018 yd²?
