Which equation describes multiplication using this area model?
85×7=(80+5)×7=80×7+5×7
8...
Mathematics, 09.04.2021 22:50 yasiroarafat12
Which equation describes multiplication using this area model?
85×7=(80+5)×7=80×7+5×7
87×5=(80+7)×5=80×5+7×5
80×75=(7+5)×80=7×80+5×80
80×57=(5+7)×80=5×80+7×80
A rectangle. A vertical line divides the rectangle into two smaller rectangles. To the left of the rectangle is the number 5. Above the first small rectangle is the number 80. Above the second small rectangle is the number 7.
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Mathematics, 21.06.2019 19:30
Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?
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