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statuscvo [17]
3 years ago
9

What does that equal

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

3-\sqrt{10}

Step-by-step explanation:

We are given an expression and are asked to find what it equals. We can see that the two square roots are being multiplied, therefore they follow the same standard as any multiplication problem, do as followed :

\sqrt{5} *\sqrt{2}

\sqrt{10}

Since a square root and constant number are different terms, we cannot combine them together, therefore leave as is :

3-\sqrt{10}

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What is the value for angle 2?<br><br> I need help
GaryK [48]

Answer:

120

Step-by-step explanation:

all complementary angles should add up to 180 degrees

4 0
3 years ago
Read 2 more answers
20. Sketch the level curve of the function f(x, y) that contains the point (5,0).
PolarNik [594]

At the given point,

f(5,0) = \dfrac1{\sqrt{5^2 + 0^2 - 9}} = \dfrac1{\sqrt{16}} = \dfrac14

Then the level curve is

\dfrac1{\sqrt{x^2 + y^2 - 9}} = \dfrac14 \\\\ \implies \sqrt{x^2 + y^2 - 9} = 4 \\\\ \implies x^2 + y^2 - 9 = 4^2 \\\\ \implies x^2 + y^2 = 25 = 5^2

which is a circle centered at the origin with radius 5 - quite easy to sketch.

5 0
2 years ago
A ladder leans against a window in a two-story building. the window is 16 feet off the ground. the base of the ladder is 12 feet
Kitty [74]
A^2 + b^2 = c^2
16^2 + 12^2 = c^2
256 + 144 = c^2
400 = c^2
sqrt 400 = c
20 = c <== the ladder is 20 ft long
6 0
3 years ago
Pls help me with this :((
Mazyrski [523]
Sin16=x/25
cos16=y/25
3 0
3 years ago
A circle has a diameter of 15 meters. Calculate the
Nina [5.8K]

Answer:

15.7 meters

Step-by-step explanation:

Applying,

s = πd∅/360°..................... Equation 1

Where s = length of the arc formed, d = diameter of the circle, ∅ = angle formed by the center of the circle, π = pie.

From the question,

Given: d = 15 meters, ∅ = 120°

Constant: π = 3.14

Substitute these values into equation 1

s = (3.14×15×120)/360

s = 15.7 meters

Hence the lenght of the arc formed is 15.7 meters

4 0
3 years ago
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