Screen printing a batch of shirts takes 0.4 minutes to make a shirt in addition to 4 minutes of initial set time. if it take 6.4 minutes to screen-print a batch of shirts , how many shirts are in the batch?

6 shirts

Step-by-step explanation:

We need to subtract initial set time from 6.4

So,

6.4 - 4 = 2.4 minutes for batch of shirt

Each shirt takes 0.4 minutes and we have 2.4 minutes. Thus number of shirts is:

2.4 / 0.4 = 6 shirts

We have taken 4 minutes as initial time for any number of shirts.

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!

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)