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2 answers:
Answer:
Step-by-step explanation:
Notice that you are being asked to perform the product of a scalar (the number "-10" times a 2 by 2 matrix.
Such type of product requires the multiplication of each element of the matrix by the scalar "-10"
That means that the element 23 gets transformed into "-230"
The element -38 gets transformed into "380"
The element 17 gets transformed into "-170"
and lastly, the element -6 gets transformed into "60"
Such modification gets reflected in the second matrix listed among the possible answers.
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Answer:
Step-by-step explanation:
since AD is a median it implies that triangle ABC is bisected to two equal right angled triangle which are ADB and ADC.
FE is parrallel to BC and cuts AB at F and AC at E shows that there are two similar triangles formed which are AFE and ABC.
Recall that ADC is a right angled triangle, ED bisects a right angled triangle the the ADE = .
Now, Let FD bisect angle ADB,
then ADF = too.
Since AFX is similar to Triangle ABD and that Triangle AEX is similar to Triangle ACD, then EDX is similar to FDX
FDE = ADF + ADE =