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OpenStudy (anonymous):
Evaluate the expression without using a calculator.
63 · 8
A.
484
B.
494
C.
504
D.
638
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OpenStudy (anonymous):
It's C. 504.
OpenStudy (anonymous):
one more please
OpenStudy (anonymous):
Ok.
OpenStudy (anonymous):
Rewrite the expression without using grouping symbols.
–6(8 + 12)
A.
(–6) • 8 + 12
B.
(–6) • 8 + (–6) • 12
C.
–68 + 612
D.
(–6) + 8 • (–6) + 12
OpenStudy (the_fizicx99):
B
You multiply -6 with both the numbers inside the parenthesis.. distributive property
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OpenStudy (anonymous):
will u help me on three more
OpenStudy (the_fizicx99):
K
OpenStudy (anonymous):
Which expression is equivalent to this one?
6(x – 17)
A.
6x – 17
B.
6x · (–17)
C.
6x – 6 · 17
D.
6 + x – 17
OpenStudy (the_fizicx99):
Same thing
6*x and 6*(-17)
OpenStudy (anonymous):
FOIL again.
(6 times X)- (6 x 17)
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OpenStudy (anonymous):
Rewrite the expression by using grouping symbols.
y • 4 + y • z
A.
4(y + z)
B.
z(y • 4)
C.
y • (4 + y) • z
D.
y (4 + z)
OpenStudy (the_fizicx99):
Foil?? @Johnbc its distributive property.
OpenStudy (anonymous):
thanks i idk what he was talking about
OpenStudy (anonymous):
Sorry yes that is exactly what i meant @tHe_FiZiCx99
OpenStudy (the_fizicx99):
D
As you can see its y*4 + y*z
y(4+z)
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OpenStudy (anonymous):
Evaluate the expression without using a calculator.
74 · 6
A.
414
B.
424
C.
434
D.
444
OpenStudy (anonymous):
D. 444
OpenStudy (the_fizicx99):
Just remember this: |dw:1386983556541:dw|
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