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ivolga24 [154]
3 years ago
10

the temperature outside is15°f. if the if the temperature outside drops 20°.will the outside temperature be represented by a pos

itive or negative inter? explian your reasoning.
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0
Your answer will be negative because you're subtracting a greater value from a lesser value.
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8L because 80% —> 80/100 —> 8/10
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For each shape, write an algebraic expression for its perimeter - part A and B
nikitadnepr [17]

Answer:

a)  p + q + r

b)  2(a + b)

Step-by-step explanation:

The perimeter of a two-dimensional shape is the <u>distance</u> all the way around the outside.

An algebraic expression contains one or more numbers, variables, and arithmetic operations.

A variable is a symbol (usually a letter) that represents an unknown numerical value in an equation or expression.

<u>Question (a)</u>

The length of each side of the triangle is labeled p, q and r.  Therefore, the perimeter is the sum of the sides:

Perimeter = p + q + r

So the algebraic expression for the perimeter of the triangle is:

p + q + r

<u>Question (b)</u>

Not all of the sides of the shape have been labeled.  

However, note that the horizontal length labeled "a" is equal to the sum of "c" and the horizontal length with no label.

Similarly, note that the vertical length labeled "b" is equal to the sum of "d" and the vertical length with no label.

Therefore, the perimeter is twice the sum of a and b:

Perimeter = 2(a + b)

So the algebraic expression for the perimeter of the shape is:

2(a + b)

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1 year ago
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 5 cos 3θ
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First of all get a picture of what this looks like. Desmos is a pretty good graphing program, but anything that will do polar coordinates will work. 

Here is the graph.

What you can see is that this graph is symmetrical around the x axis.

When you talk about symmetry, you can think of it as taking a mirror and putting it where you think there is symmetry. If you can't tell the difference between the image and the real thing, then you have symmetry.

In this case, the mirror will show symmetry along the x axis and no where else.

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3 years ago
Read 2 more answers
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Answer:

see explanation

Step-by-step explanation:

A fraction is in simplest form when no other factor but 1 will divide into the numerator/ denominator

(1)

\frac{3}{100} ← is in simplest form

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\frac{2}{5} ← is in simplest form

(3)

\frac{10}{12} ( divide numerator/ denominator by 2 )

= \frac{5}{6} ← in simplest form

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What does the residual of -3 mean?
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Answer:

Plz mark brainlest!

Step-by-step explanation:

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