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2 years ago

2+2+6+6+6+6+66+66666

Mathematics

2 answers:

alexira [117]2 years ago

7 0

2+2=4
6+6+6+6=24
66+66666=66732

4+24+66732=66760

nlexa [21]2 years ago

5 0

Answer:

The sum is 66,760 in total.

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Graph f(x)= -(x-2)²+4<img src="https://tex.z-dn.net/?f=" id="TexFormula1" title="" alt="" align="absmiddle" class="latex-formula

Mandarinka [93]

Answer: See the graph attached.

Step-by-step explanation:

The standard form of a quadratic function is:

$f(x)=a(x-h)+k$

Where (h,k) is the vertex of the parabola.

If $a$ is negative, then the parabola opens down.

Then, for the function:

$f(x)=-(x-2)^2+4$

You can identify:

$h=2\\k=4$

Then the vertex of the parabola is at (2,4)

Note that $a=-1$ , therefore the parabola opens down.

Find the intersection with the x-axis. Substitute $f(x)=0$ and solve for x:

$0=-(x-2)^2+4\\0=x^2-4x\\0=x(x-4)\\\\x_1=0\\x_2=4$

Knowing that the vertex is at (2,4), the parabola opens down and it intersects the x-axis at x=0 and x=4, you can graph the function, as you observe in the figure attached.

7 0

3 years ago

Find the distance along an arc on the surface of the earth that subtends a central angle of 6 minutes (1 minute = 1/60 degree).

bazaltina [42]

Answer:

6.914miles (to 3 decimal places)

Step-by-step explanation:

Length of an arc = θ/360 *2πr

angle subtended by arc at the center of the earth = 6 minutes

1 minute =1/60 degree

6 minute= 6/60 degree =0.1°

θ=0.1°

radius of earth = 3960 miles

distance along the arc = $\frac{0.1}{360}*2\pi *3960$

=6.9142857143miles

3 0

2 years ago

Helppppp needed plz quick

olga nikolaevna [1]

Answer:

Step-by-step explanation:

9x - 77 = 7x - 43

2x - 77 = -43

2x = 34

x = 17

9(17) - 77 = 153 - 77 = 76

7(17) - 43 = 119 - 43 = 76

z + 76 = 180

z= 104

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2 years ago

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The square root of 5 is 2.236

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3 years ago

5. ¿A qué fracción es equivalente el número 27

nika2105 [10]

Answer:

Step-by-step explanation:

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