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Anestetic [448]
3 years ago
9

Simplify the square root of -16 + the square root of -9

Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer:

7i

Step-by-step explanation:

See attached image.

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A circle has a radius of 6 cm. What is the area of the circle? (Use 3.14 for pi)
vampirchik [111]

Answer:

113.04 cm²

Step-by-step explanation:

area of a circle= πr²

= 3.14 x 6²

=3.14 x 36

= 113.04 cm²

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3 years ago
Create two real world problems that involve the fraction 1/2 and the whole number 3
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-Dominant- [34]

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60

Step-by-step explanation:

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Step-by-step explanation:

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4 0
3 years ago
Can somebody help me, please?
Sveta_85 [38]

Answer:

a.x=10 \textdegree

b.

m\angle L=39\textdegree\\\\m\angle M=51\textdegree\\\\m\angle K=90\textdegree

Step-by-step explanation:

a. We know that angles in a triangle add up to 180°.

-The right angle triangle in the right triangle has a measure of 90°.

We can therefore equate our angles to 180° and solve for x;

180=\perp\angle+(2x+19)+(3x+21)\\\\180=90+(2x+19)+(3x+21)\\\\90=5x+40\\\\5x=50\\\\x=10\textdegree

Hence, the angle measure is x=10°

b. Having calculated the value of x from a above as x=10°, we can substitute to find the measures of the two acute angles:

m\angle L=(2x+19)\textdegree\\\\=(2\times 10+19)\textdegree\\\\=39\textdegree\\\\m\angle M=(3x+21)\textdegree\\\\=(3\times 10+21)\textdegree\\\\=51\textdegree

Since, the m∠K is a right angle, it measures 90°

8 0
3 years ago
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