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3 years ago

Help me ASAP please

Mathematics

2 answers:

34kurt3 years ago

7 0

I think it’s C but I’m not sure

dmitriy555 [2]3 years ago

6 0

Sorry I don’t think I know that

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DUE SOON evaluate -3 1/5 + 7 3/5 = -5 +2 - 8 -(-14)= show work pls

Sergeeva-Olga [200]

To hard sorry try Socratic it’s a app that helps with math problems

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3 years ago

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:

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

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3 years ago

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Is it possible for a system of linear equations to have no solutions ?

sveta [45]

Yes it is possible,they never intersect, so there is no point that lies on both lines, and no solution to the system

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Your family goes to a Southern-style restaurant for dinner. There are 5 people in your

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3 years ago

0.2x + 0.8 = 9.6 find x Please and thank you.

Akimi4 [234]

Answer:

x=44

Step-by-step explanation:

Making the equation in terms of x:

0.2x + 0.8 = 9.6

-0.8 -0.8

0.2x=8.8

*5 *5

x=44

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3 years ago

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