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cricket20 [7]
3 years ago
7

Write √12 + √-9 as a complex number.

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
3 0

Step-by-step explanation:

you're going to have to break the argument of the root up into smaller numbers and square root those smaller numbers to obtain the answer.

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Type the correct answer in each box. The volume of a cube is given by and the total surface area of a cube is given by , where s
larisa86 [58]

Answer:

hope this will help you a lot

7 0
2 years ago
Where is a major league ballpark in which the distance from home plate to the center-field fence and the height of the center fi
jonny [76]
Given:

A height of 2 feet above the ground and angle of elevation of 86 degrees. 

Assuming that the form of our problem is a right triangle, we can solve for the remaining angle:

180 - (90+86) = 4 degrees

The distance from the home plate to the centerfield is

2/sin 4 = x / sin 86

solve for x

x = 28.60 feet
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8 0
3 years ago
an elevator is two floors below ground level and goes up 5 floors. write an addition equation that models the location of the el
sveticcg [70]
Below = a negative number (-)
-2
up = positive number
5
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7 0
2 years ago
Drag a vertex of the triangle to change its shape.
likoan [24]

Answer:

The correct option is;

45°

Step-by-step explanation:

By angle sum theorem, we have that the sum of angles in a triangle = 180°

Therefore, we have;

When the interior angles of the triangle are constructed to be 60° and 75°, we have by the angle sum theorem;

The third angle + 60° + 75° = 180°

Which gives;

The third angle  = 180°- 60° - 75° = 180°- 135° = 45°

The measurement of the third angle by the angle sum theorem will be 45°

The correct option is ∠third angle = 45°.

8 0
3 years ago
Help pleasee<br> Qn is attached belowww <br> PLEASE HELPP
Simora [160]

Answer:

QR = 65.4 m

Step-by-step explanation:

a. Apply Law of Cosines to find QR:

p² = q² + r² - 2qr × Cos P

p = QR = ?

q = PR = 150 m

r = PQ = 120 m

P = 25°

Plug in the values

p² = 150² + 120² - (2)(150)(120) × Cos(25°)

p² = 22,500 + 14,400 - 36,000 × 0.9063

p² = 36,900 - 32,626.8

p² = 4,273.2

p = √4,273.2

p ≈ 65.4 m (nearest tenth)

QR = 65.4 m

7 0
3 years ago
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