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Dennis_Churaev [7]
3 years ago
9

21 is less than a number

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0
The less than sign is <, so it’s going to be 21
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What is the area of the regular polygon?
BartSMP [9]

Answer:

You could use the polygon area formula OR here's an easier solution

We draw the lines DC and DE

Angle ADC = 120°

Triangle ADC is a 30 60 90 triangle

In such a triangle Line AE = hypotenuse * sq root (3) /2

Line AE = 3 * 0.8660254038  = 2.5980762114

Line DE = 1.5

Area of Triangle ADE = .5 * 1.5 * 2.5980762114 =

1.9485571586   square meters and entire area of Triangle

ABC = 6 * 1.9485571586

which equals 11.6913429513  square meters

Step-by-step explanation:

6 0
3 years ago
Find the area of the following shape. You must show all work to receive credit
kirza4 [7]

Answer:

42 square units

Step-by-step explanation:

Draw segments - 5 to A, A to the point of intersection of Band C and from from the point of intersection of B, C upto 2. It will form a square with each side 8 units and four triangles.

Subtracting the area of 4 four triangles from the area of the square will give you the area of the required shape.

Area of the shape

=  {8}^{2}  -  \frac{1}{2}  \times 3 \times 6 - \frac{1}{2}  \times 5 \times 2 - \frac{1}{2}  \times 2 \times 3\\ - \frac{1}{2}  \times 2 \times 5 \\  \\  = 64 - 3 \times 3 - 5 \times 1  - 1\times 3 - 1 \times 5 \\  \\  = 64 - 9 - 5  - 3 - 5 \\  \\  = 64 - 22 \\  = 42 \:  {units}^{2}

3 0
3 years ago
Read 2 more answers
Question 9: A printing company's costs for printing a book are $300 for
NemiM [27]

Answer:

The answer is B

Step-by-step explanation:

6 0
3 years ago
Hannah and Anthony are siblings who have ages that are consecutive odd integers. The sum of their ages is 92. Which equations co
Wewaii [24]

Answer:

h = Hannah's age

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Step-by-step explanation:

Using one variable and an expression with the same variable, you can find the sum of the siblings ages:

h = Hannah's age

h - 2 = Anthony's age

h + (h - 2) = 92

Combine like terms: 2h - 2 = 92

Add '2' to both sides: 2h - 2 + 2 = 92 + 2 or 2h = 94

Divide by 2: 2h/2 = 94/2

Solve for h:  h = 47 years old (Hannah)

h - 2 = 45 years old (Anthony)

6 0
4 years ago
What is ⅓ + ⅒? please​
Molodets [167]

Answer:13 over 30

13/30 or 0.433

Step-by-step explanation:

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3 years ago
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