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Dmitriy789 [7]
3 years ago
5

Can someone simplify this? I need help

Mathematics
2 answers:
True [87]3 years ago
3 0

B. 19 - 8\sqrt{3}.

Licemer1 [7]3 years ago
3 0

Answer:

19-8 \sqrt{3}

Step-by-step explanation:

Multiply (-4+ \sqrt{3} ) by itself:

3-8 \sqrt{3} +16.

Add like terms (3+16):

19-8 \sqrt{3}

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A side of the triangle below has been extended to form an exterior angle of 164". Find
Arada [10]

Given:

Measure of exterior angle = 164°

The measure of opposite interior angles are x° and 53°.

To find:

The value of x.

Solution:

According to the Exterior Angle Theorem, in a triangle the measure of an exterior angles is always equal to the sum of measures of two opposite interior angles.

Using Exterior Angle Theorem, we get

x^\circ+53^\circ=164^\circ

x^\circ=164^\circ-53^\circ

x^\circ=111^\circ

x=111

Therefore, the value of x is 111.

3 0
3 years ago
A diver is 25 feet below sea level. After he swims up 15 feet toward the surface, what is his elevation?
Nataly [62]
The person above me is right!! I kinda got confused because i thought it was asking what sea level is the diver now BUT its asking for the elevation, so you need to subtract.
7 0
3 years ago
Needs to be graphed and solved please help
il63 [147K]

Answer: here it is graphed and it cant be solved because there are no solutions as seen on the graph!

Step-by-step explanation: hope i helped please mark brainliest!

7 0
3 years ago
Justine earned $28,000 during the first year of her job at city hall. After each year she received a 6% raise. Find her total ea
Verdich [7]

Answer:

$ 157838.60  in 5 years

Step-by-step explanation:

r = 1.06

sum of geometric seq =  a1 ( 1-r^n)/(1-r)    n = 5

                                        28000 ( 1 - 1.06^5) / ( 1-1.06) = 157838.60

5 0
2 years ago
the length of a flag is 0.3 foot less than twice its width. if the perimeter is 14.4 feet longer than the width, find the dimens
forsale [732]
x-\ length\\
y-\ width\\\\
x+0.3=2y\ \ \ \ \ | subtract\ 0.3\\x=2y-0.3\\
perimeter=2x+2y\\ 2x+2y-14.4=y\\\\
2*(2y-0.3)+2y-14.4=y\\
4y-0.6+2y-14.4=y\\
6y-15=y\ \ \ | add\ 15\\
6y=15+y\ \ | subtract\ y\\
5y=15\ \ \ | divide\ by\ 5\\
y=3\\
x=2y-0.3=2*3-0.3=6-0.3=5.7\\\\
Dimensions:\ length=5.7\ feet\, width=3\ feet.
4 0
3 years ago
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