The value of expression is 7.
<h3>What is expression?</h3>
An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)
Given:

Now, using property of log
a log b
So,
= 7 log 10
As log 10 = 1
= 7 (1)
= 7
Learn more expression here:
brainly.com/question/14083225
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Answer:

Step-by-step explanation:
Let the length of the rectangular part =l
The width will be equal to the diameter of the semicircles.
Area of the Skating Rink= 
Therefore:

Perimeter of the Shape =Perimeter of two Semicircles + 2l

The perimeter of the rink is given as:

Answer:
12 Squared Units
Step-by-step explanation:
Top length: 4 Units
Side length: 3 Units

÷

equals

.
First, convert

to improper fraction. Use this rule:

=

. Your problem should look like:

÷

.
Second, simplify 2 x 8 to get 16. Your problem should look like:

÷

.
Third, simplify 16 + 3 to get 19. Your problem should look like:

÷

.
Fourth, convert

to improper fraction. Use the same rule as earlier. Your problem should look like:

÷

.
Fifth, simplify 4 + 1 to get 5. Your problem should look like:

÷

.
Sixth, apply this rule: a ÷

= a ×

. Your problem should look like:

×

.
Seventh, apply this rule:

×

=

. Your problem should look like:

.
Eighth, simplify 19 × 4 to get 76. Your problem should look like:

.
Ninth, simplify 8 × 5 to get 40. Your problem should look like:

.
Tenth, simplify. Your problem should look like:

.
Eleventh, convert to mixed fraction. Your problem should look like:

which is the answer.
Answer as mixed number form:

.
Answer as exact form:

.
Answer as decimal form: 1.9.