Answer:
see explanation
Step-by-step explanation:
Since the 2 figures are similar then the ratios of corresponding sides are equal, that is
= 
( cross- multiply )
18x = 48 ( divide both sides by 18 )
x = 
= 
= 2 
Similarly
= ( cross- multiply )
18y = 30 ( divide both sides by 18 )
y = 
= 
= 1
Let 
be the line that passes through both points.
We know that 
and 
. So:
Solving the system, we get that a= -1 and b = 6.
So the line is equal to 
.
Answer:
15" by 10"
Step-by-step explanation:
Use a proportion.
10'/5" = 30"/x
10x = 5 * 30
10x = 150
x = 15"
10'/5" = 20'/y
10y = 5 * 20
10y = 100
y = 10"
Answer: 15" by 10"
Answer:
Step-by-step explanation:
<span>Exponent
is a number used to express shorter equation; it is a number that says how many
times you are going to multiply the base number.
</span><span>
Exponents have several laws, here are
some:
=> x^1 = x
=> x^0 = 1
=> x^-1 = 1/x
=> x^m x^n = X^m+n
=> x^m/x^n = x^m-n
And since we were asked to write an
expression with a negative exponent that has a value between 0 and ½
=> 2^ -2 = ½
</span>
