The evaluation of the expression (-3)² is incorrect the correct answer will be (-3)²=+9.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using the signs like addition,substraction, multiplication and division.
Here we have an expression in the question:-
= (-3)² = (-3 x -3 ) = 9
So the answer of the question will be 9 because the multiplication of the two negative sign is always positive.
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dont know the answer at all
Step-by-step explanation:
Answer:
B) Cube
Step-by-step explanation:
A) square pyramid has one square base and 4 congruent triangles
B) Cube has 6 congruent squares
C) Rectangular pyramid has one rectangle base and 4 congruent triangles
D) Rectangular prism has 3 sets of rectangles; total of 6 rectangles
The quotients are equal because they both go in the same number of times. The second pair of quotients just have an extra 0 at the end which just changes the place value of the number.