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3 years ago

What is the first step in evaluating the expression shown below?

Mathematics

2 answers:

zysi [14]3 years ago

5 0

Answer:

the answer is A

Step-by-step explanation: because the way you work out problems with parenthesis is Parenthesis Exponents Multiplication Division Adding Subtraction and what ever id in the parenthesis comes first

pogonyaev3 years ago

5 0

A is the correct answer as you should always do the expression that’s in parentheses first

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The diagram below shows a square inside a regular octagon. The apothem of the octagon is 15.69 units. To the nearest square unit

Musya8 [376]

Answer:

C. 647 square units

Step-by-step explanation:

To find the shaded area, subtract the area of the unshaded square from the area of the octagon.

Area of the octagon

$\textsf{Area of a regular polygon}=\dfrac{n\:l\:a}{2}$

where:

n = number of sides
l = length of one side
a = apothem

Given:

n = 8
l = 13
a = 15.69

Substitute the given values into the formula and solve for A:

$\implies \textsf{Area}=\sf \dfrac{8 \cdot 13 \cdot 15.69}{2}$

$\implies \textsf{Area}=\sf \dfrac{1631.76}{2}$

$\implies \textsf{Area}=\sf 815.88\:\:square \:units$

Area of the square

$\implies \textsf{Area}=\sf 13^2=169 \:\:square \:units$

Area of the shaded region

= area of the octagon - area of the square

= 815.88 - 169

= 646.88

= 647 square units (nearest square unit)

3 0

2 years ago

Read 2 more answers

Find the missing number. ____ × 4 = 52

cupoosta [38]

13

Divide 52 by 4 which gives you 13. 13 x 4 = 52

6 0

3 years ago

Read 2 more answers

Writing about Graphing a Fraction

vladimir1956 [14]

Answer:

d) 2 1/2

Step-by-step explanation:

if you make 5/2 a mixed number, you get 2 1/2

5 0

2 years ago

Use the properties of exponents to write an equivalent expression.

Vladimir [108]

$\frac{ {12}^{6} }{ {12}^{2} }$
Here you subtract the exponent from the other
$\frac{ {12}^{6} }{ {12}^{2} } = {12}^{4}$

For the second one you multiply the exponents as so
$3 \times 5 = 15$
${ ({10}^{3} )}^{5} = {10}^{15}$

6 0

4 years ago

Which graph represents a reflection of f(x) = 1/10 (10)x across the y-axis?

choli [55]

F(x) =1/10 (10)x = x
Its reflection across the y-axis gives g(x)= -x
The attached graph represents the given function and its reflection

4 0

3 years ago