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My name is Ann [436]
3 years ago
11

8 divided by 2 (2+2). 1 or 16

Mathematics
1 answer:
laiz [17]3 years ago
8 0

Answer:

16

Step-by-step explanation:

8/2(2+2)  

Following the order of operations (PEMDAS), combine the terms in your parentheses:

8/2(4)

Remember that we follow the order of operations from left to right.

Divide 8 into 2:

4(4)

Multiply:

16

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Liliana wants to write an equivalent expression for n + 3 minus 5 n + 6. Which of her attempts uses the algebraic properties cor
torisob [31]

Answer:

Option A.

Step-by-step explanation:

The given equation is

n+3-5n+6

Liliana wants to write an equivalent expression.

It can be written as

n+(3-5n)+6

Using commutative property, we get  

n-5n+3+6             [\because A+B=B+A]

Using associative property, we get

(n-5n)+(3+6)             [\because A+(B+C)=(A+B)+C]

Using distributive property, we get

(1-5)n+(3+6)             [\because An+Bn=(A+B)n]

Using addition property, we get

-4n+9

Therefore, the correct option is A.

8 0
3 years ago
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If the perpendicular bisector of one side of a triangle goes through the opposite vertex, then is the triangle isosceles?
Ne4ueva [31]

Answer:

True

Step-by-step explanation:

The perpendicular bisector of the opposite side to the vertex bisects the angle at the vertex into two equal parts and also bisects the triangle into two equal parts.

Let A be the angle at the vertex, then assume that the angle is an isosceles triangle with base angles B.

We need to show that A = 180 - 2B for an isoceles triangle

The perpendicular bisector bisects A into two so the new angle in the vertex one half of the bisected triangle is A/2.

Since this half triangle is a right-angled triangle, the third angle in it is 90.

So, A/2 + B +  90 = 180 (Sum of angles in a triangle)

subtracting 90 from both sides, we have

A/2 + B + 90 - 90 = 180 - 90

A/2 + B = 90

subtracting B from both sides, we have

A/2 + B = 90

A/2 = 90 - B

multiplying through by 2, we have

A = 2(90 - B)

A = 180 - 2B

Since A = 180 - 2B, then our triangle is an isosceles triangle.

7 0
3 years ago
What is the point of this
Ivan

Answer:

B and I are both coplanar

Step-by-step explanation:

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3 years ago
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This half cylinder fish tank has a tank height of 25 inches and a tank diameter of 22 inches. What is the volume of this fish ta
Xelga [282]

Answer:

The volume of this fish tank is 9498.5\ \text{inches}^3.

Step-by-step explanation:

Height of cylinder fish tank is 25 inches

Diameter of a tank is 22 inches      

It is required to find the volume of this fish tank. The formula for the volume of a fish tank is given by :

V=\pi r^2 h

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V=3.14\times (11)^2\times 25\\\\V=9498.5\ \text{inches}^3

So, the volume of this fish tank is 9498.5\ \text{inches}^3.

8 0
3 years ago
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