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3 years ago

Helpppppppppp plz..............

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

8miles

Step-by-step explanation:

velocity= 6/(45/60)=8miles/h

distance = 8miles in 1 hour

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At the base of a pyramid, a surveyor determines that the angle of elevation to the top is °. At a point meters from the base, th

riadik2000 [5.3K]

Answer:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

Step-by-step explanation:

Incomplete question:

$\angle CBD = 53^\circ$

$\angle CAB = 35^\circ$

$AB = 75$

See attachment for complete question

Required

Determine the equation to find x

First, is to complete the angles of the triangle (ABC and ACB)

$\angle ABC + \angle CBD = 180$ --- angle on a straight line

$\angle ABC + 53= 180$

Collect like terms

$\angle ABC =- 53+ 180$

$\angle ABC =127^\circ$

$\angle ABC + \angle ACB + \angle CAB = 180$ --- angles in a triangle

$\angle ACB + 127 + 35 = 180$

Collect like terms

$\angle ACB =- 127 - 35 + 180$

$\angle ACB =18$

Apply sine rule

$\frac{\sin A}{a} = \frac{\sin B}{b}$

In this case:

$\frac{\sin ACB}{AB} = \frac{\sin CAB}{x}$

This gives:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

4 0

3 years ago

Read 2 more answers

And has enough seats for 312 people. How many seats are

pogonyaev

Answer:

What is the first part of the question? Can you put it in the comments?

Step-by-step explanation:

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2 years ago

Find the sum of the measures of exterior angles, one at each vertex, of an octagon.

hjlf

A rule of polygons is that the sum of the exterior angles always equals 360 degrees, but lets prove this for a regular octagon (8-sides). First we must figure out what eachof the interior angles equal. To do this we use the formula: ((n-2)*180)/n where n is the number of sides of the polygon

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10 weeks ago Jerry bought stock at 21 and a half today the stock is valued at 20 and 3/8 we can say the stock is performing at w

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Par value means that the stock is quoted at the face or principal value.

If Jerry bought the stock at the face value, it means that the stock is now below its face value, and that is said that the stock is below par.

Therefore, the answer is below par.

Answer: below par.

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3 years ago

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jeka57 [31]

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2 years ago