Courtneymorris19
05.03.2021 •
Mathematics
The diagram shows a rectangle, ABDE, and
two congruent triangles, AFE and BCD.
The area of rectangle ABDE= area of triangle AFE + area of triangle BCD
AB:AE=1:3
Thank you so much if you can help!
Work out the length of AE.
In all working let length of AE be acm.
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Ответ:
Step-by-step explanation:
A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, estimate the homework grade, to the nearest integer, for a student with a test grade of 31.
Homework Grade (x) Test Grade (y)
58 52
75 66
66 68
85 74
52 38
74 65
78 76