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3 years ago

7

What is the absolute value of -77?

1 answer:

eimsori [14]3 years ago

5 0

$|x|=\begin{cases}x&\text{for }x\ge0\\[1ex]-x&\text{for }x$

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♡LOTS OF POINTS TO RIGHT ANSWER♡

muminat

Answer:

$\approx19.16$

Step-by-step explanation:

To find the surface area of a cone, one uses the following formula,

$A=(\pi)(r)(r+\sqrt{h^2+r^2}})$

Where (r) is the radius of the base of the cone, and (h) is the height of the cone, ( $\pi$ ) represents the numerical constant (3.1415...). In order for this formula to work, one needs the height of the cone. This can be found using the Pythagorean theorem. One can form a right triangle with the base's radius, the side length, and height of the cone, then solve for the height of the cone. The Pythagorean theorem states the following,

$a^2+b^2=c^2$

Substitute,

$a^2+(1)^2=(5.1)^2$

Simplify,

$a^2+1=26.01$

Inverse operations,

$a^2=25.01\\a\approx5$

Now one can use the formula to find the surface area of a cone, substitute in the given values, and solve,

$A=(\pi)(r)(r+\sqrt{h^2+r^2}})$

Substitute,

$A=(\pi)(1)(1+\sqrt{5^2+1^2}})$

$A=(\pi)(1+\sqrt{25+1})\\A=\pi(1+\sqrt{26})\\A\approx 19.16$

6 0

3 years ago

(10 points)4 5/6 + 9 5/9 =

lana [24]

14 7/18 is the correct answer i believe.

7 0

3 years ago

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Find the equation of a line in slope-intercept form, containing the points (9,2.6) and (8,2.2).

Zolol [24]

The equation in slope-intercept form would be y = 0.4x - 1

hope this helps!!

4 0

3 years ago

A stone has a mass of

weqwewe [10]

To find the density of the stone divide the mass by the volume:

Density of stone = 100 grams / 10 ml = 10g/ml

Since the density of the stone is more than the density of the water, it will sink.

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3 years ago

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5 + 2n2 when n = 3. <br><br> (The 2 after the n is an exponent)

Pani-rosa [81]

Answer:

23

Step-by-step explanation:

5 0

3 years ago

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