9.4 Qiz Setting up and solving simultaneous equations B The total height of 4 building blocks and a flagpole on top is 23 cm.
The total height of 9 building blocks and a flagpole on top is 43 cm.
Find the height of a building block and the height of a flagpole.
Height of a building block =
cm
Height of a flagpole =
cm

building block = 4cm

flag pole = 7 cm

Step-by-step explanation:

9b + f = 43

4b + f = 23

5b = 20

b = 4

16 + f = 23

23 - 16 = 7

f= 7

36 + 7 = 43

im pretty sure its

(8,15)

step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!