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2 years ago

Please awnser this 8÷4400

Mathematics

2 answers:

Schach [20]2 years ago

6 0

0,001818181818182 i think this is result

Viefleur [7K]2 years ago

5 0

Answer:

0.001818181818182

Step-by-step explanation:

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Find the area of an equilateral triangle with radius 22 cm. Round to the nearest whole number.

earnstyle [38]

Answer:this item, we are given with the radius equal to 22 cm.

In this measurement of the radius is the hypotenuse of the 30°-60°-90° triangle formed with the half the measurement of the side of the equilateral triangle being opposite to the 60° and equal to the hypotenuse times (1/2)(√3)

Step-by-step explanation:

If we let s be the side of the triangle then,

s/2 = r(1/2)(√3)

Multiplying the equation by 2,

s = r√3

Substituting,

s = (22 cm)(√3) = 22√3

The area of the equilateral triangle is computed through the equation,

A = (√3 / 4)(s²)

Substituting,

A = (√3 / 4)(22√3)² = 628.7 cm²

Therefore, the answer to this item is the first choice.

4 0

2 years ago

A baker took 9 hours to bake 6 cakes how long does it take him to bake 1 cake?

AlexFokin [52]

Answer:

1.5 hours

Step-by-step explanation:

5 0

2 years ago

How to solve 2/10b=99

soldier1979 [14.2K]

Multiply both sides by 10.
2b=990
divide both sides by 2
b= 495

6 0

2 years ago

Help pls!! I’m bad at geometry lol

zavuch27 [327]

Answer:

The perimeter of a shape is the length around it.

Step-by-step explanation:

We will be using the x and y values and add them together to find the total perimeter.

To do this, let's find all the values of the 2 axis:

(2 to 4) = 2

(1 to 3) = 2

(4 to 10) = 6

(3 to 1) = 2

(10 to 12) = 2

(1 to 8) = 7

(12 to 2) = 10

(8 to 1) = 7

We now add these values together which gives us 38. Don't forget to add the units afterwards (cm, m and so forth).

3 0

2 years ago

Can someone please help me with my Question #29 of The Quadratic Relations for me please?

lara [203]

Answer:

Calculate the first differences between the y-values:

$\sf 3 \underset{+1}{\longrightarrow} 4 \underset{+3}{\longrightarrow} 7 \underset{+5}{\longrightarrow} 12 \underset{+7}{\longrightarrow} 19$

As the first differences are not the same, we need to calculate the second differences:

$\sf 1 \underset{+2}{\longrightarrow} 3 \underset{+2}{\longrightarrow} 5 \underset{+2}{\longrightarrow} 7$

As the second differences are the same, the relationship between the variable is quadratic and will contain an $x^2$ term.

--------------------------------------------------------------------------------------------------

To determine the quadratic equation

The coefficient of $x^2$ is always half of the second difference.

As the second difference is 2, and half of 2 is 1, the coefficient of $x^2$ is 1.

The standard form of a quadratic equation is: $y=ax^2+bx+c$

(where a, b and c are constants to be found).

We have already determined that the coefficient of $x^2$ is 1.

Therefore, a = 1

From the given table, when $x=0$ , $y=12$ .

$\implies a(0)^2+b(0)+c=12$

$\implies c=12$

Finally, to find b, substitute the found values of a and c into the equation, then substitute one of the ordered pairs from the given table:

$\begin{aligned}\implies x^2+bx+12 & = y\\ \textsf{at }(1,19) \implies (1)^2+b(1)+12 & = 19\\ 1+b+12 & = 19\\b+13 & =19\\b&=6\end{aligned}$

Therefore, the quadratic equation for the given ordered pairs is:

$y=x^2+6x+12$

7 0

1 year ago

Please awnser this 8÷4400​

Please awnser this 8÷4400