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2 years ago

Congratulations I was forced to do this so I could see the question.?

Mathematics

1 answer:

disa [49]2 years ago

4 0

Nobody can provide an answer to you if you do not ask a question that has a viable answer?

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Need help on this please

VladimirAG [237]

Area of the sector = 90/360 ×πr^2

=1/4 ×3.142×6×6

=1/4×113.112

=28.278kilometers square

Approximately 28kilometers square

4 0

3 years ago

Solve x^2 + 6x = 7 by completing the square. Which is the solution set of the equation? {–7, 1}

marishachu [46]

Add 9 to both sides to form a perfect square trinomial:

x² + 6x = 7

x² + 6x + 9 = 16

x² + 2•x•3 + 3² = 16

(x + 3)² = 16

(recall that (a + b)² = a² + 2ab + b²)

Now solve for x. Taking square roots on both sides, we get

x + 3 = ± √16

x + 3 = ± 4

x = -3 ± 4

so the two solutions are x = -7 and x = 1.

3 0

2 years ago

Evaluate the following expression exactly: cosine of 120° <img src="https://tex.z-dn.net/?f=cos%28120%29" id="TexFormula1" ti

scoray [572]

Answer:

cos(120°) = -1/2° or 0.5°

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

2/9 in decimal and percent form?

ipn [44]

Answer:

2.9% = 0.029 in decimal form. Percent means 'per 100'. So, 2.9% means 2.9 per 100 or simply 2.9/100. If you divide 2.9 by 100, you'll get 0.029

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the distance between (-5,6)and (3,2).

skad [1K]

Answer:

$\displaystyle d = 4\sqrt{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (-5, 6) → x₁ = -5, y₁ = 6

Point (3, 2) → x₂ = 3, y₂ = 2

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formulas]: $\displaystyle d = \sqrt{(3+5)^2+(2-6)^2}$
[Distance] [√Radical] (Parenthesis) Add/Subtract: $\displaystyle d = \sqrt{(8)^2+(-4)^2}$
[Distance] [√Radical] Evaluate exponents: $\displaystyle d = \sqrt{64+16}$
[Distance] [√Radical] Add: $\displaystyle d = \sqrt{80}$
[Distance] [√Radical] Simplify: $\displaystyle d = 4\sqrt{5}$

6 0

3 years ago