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3 years ago

What is the area please

Mathematics

1 answer:

marin [14]3 years ago

6 0

The answer is 105 units²

Explanation:

Since the middle is a square, the base of all 4 triangles are equal.

Let x be the height of the triangles.

The height of the triangle can be defined as:

15 = 7 + x + x

15 = 7 + 2x

15 - 7 = 2x

x = 8/2

x = 4

Area = area of square + 4(area of triangle)

= (7 x 7) + 4(1/2(7)(4))

= 49 + 56

= 105 units²

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Please help! Thank you!

Alexeev081 [22]

Just incase u need the work. Its C.
Area of entire circle = (pi)(r^2) and r = d/2:
A =(3.142)((3.2^2) = 32.17m^2 
Portion of circle in sector: 
185degrees/360degrees = 0.514 
Multiply: 
0.514(32.17m^2) = 16.5m^2 to 1 dp

4 0

3 years ago

Mrs. Hector wanted to bring giant souvenir snow globes, which weigh 1.5 kg each, back to the USA as presents for her students. M

DIA [1.3K]

Answer:

the maximum number of snow balls can bought back = 1.6

Step-by-step explanation:

Let

Mrs. Hector brings total number of giant snow globes = x

As given,

weight of 1 snow globe = 1.5 kg

So,

Weight of x snow globe = 1.5x

As given,

She have to take them in a suitcase of weight 2.4 kg

∴

For number of snow globes we have the equation,

1.5x = 2.4

⇒x = $\frac{2.4}{1.5}$ = 1.6

So, the maximum number of snow balls can bought back = 1.6

8 0

3 years ago

Simplify the fraction and state the excluded value(s).

stira [4]

Answer:

$\displaystyle \frac{7x^2 + 4x - 20}{5x + 10} = \frac{7x - 10}{5}, x \neq -2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients

Factoring

Calculus

Discontinuities

Removable (Holes)
Jump (Piece-wise functions)
Infinite (Asymptotes)

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{7x^2 + 4x - 20}{5x + 10}$

Step 2: Simplify

[Frac - Numerator] Factor quadratic: $\displaystyle \frac{(7x - 10)(x + 2)}{5x + 10}$
[Frac - Denominator] Factor GCF: $\displaystyle \frac{(7x - 10)(x + 2)}{5(x + 2)}$
[Frac] Divide/Simplify: $\displaystyle \frac{(7x - 10)}{5}, x \neq -2$

When we divide (x + 2), we would have a removable discontinuity. If we were to graph the original function, we would see at x = -2 there would be a hole in the graph.

8 0

3 years ago

Amy paid $68.17 for a pair of running shoes during a 20%-off sale. What was the regular price?

GrogVix [38]

Answer:

$81.80

Step-by-step explanation:

With the 20% discount it was $13.63 less than $68.17

68.17 × .20 = (Rounds to $13.63 off)

4 0

3 years ago

James is X years older than Alex. Alex is X years older than Kim. James is twice as old as Kim. Alex is 24. Which of the followi

GarryVolchara [31]

All of them would be true so I would say the answer would be D.
hope that helped.

3 0

4 years ago

Read 2 more answers