3 years ago

Evaluate: -ab-a if a= -4 and b= -5 (A)-24 (B)-16 (C)24 (D)25

Mathematics

1 answer:

zlopas [31]3 years ago

8 0

-ab-a=-(-4)(-5)-(-4)=-20+4=-16

so the answer is b

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Read 2 more answers

What’s the value of x? :/

kolbaska11 [484]

Answer:

$x = 27$

Step-by-step explanation:

According to congruent chords and arcs theorem, if $\overline{XY} \cong \overline{ZY}$ then $\arc{XY} \cong \arc{ZY}$ .

This means that $\arc{XY} = \arc{ZY} = (6x - 20) degrees$

Thus:

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8 0

3 years ago

the ratio of the areas of two rectangles is 4 to 5. if the area of the larger rectangle is 135 square feet, what is the area of

-BARSIC- [3]

Divide the number 135 and 5. It is going to be 27. Then you multiply 27 times 4. Then you get your answer which is 108.
Proportion set up....
small 4 ? small
----- --------
big 5 135 big
Cross multiply 4x135= 540
and then divide 540/5= 108

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3 years ago