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victus00 [196]
3 years ago
13

Click to select the figure in the image that would portray the rotation of the given preimage and the rotation arrow,

Mathematics
1 answer:
LekaFEV [45]3 years ago
8 0

Answer:

plz explain correctly please

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You and another person are sunbathing on the beach near a lifeguard station. The other person chooses a spot that is the same di
Schach [20]

Answer: 26.8 feet

Step-by-step explanation:

In the figure attached you can see two right triangles  triangle ABD and a triangle ACD.

You are located at point B and the other person at point C.

The approximate height of the lifeguard station is <em>x</em>.

Keep on mind that:

tan\alpha=\frac{opposite}{adjacent}

Therefore:

<em>For the triangle ABD</em>:

tan(36\°)=\frac{x}{DC+11}    [EQUATION 1]

<em>For the triangle ACD:</em>

tan(46\°)=\frac{x}{DC}    [EQUATION 2]

Solve from DC from [EQUATION 2]:

DC=\frac{x}{tan(46\°)}

Substitute into [EQUATION 1] and solve for x:

tan(36\°)=\frac{x}{(\frac{x}{tan(46\°)}+11)}\\tan(36\°)(\frac{x}{tan(46\°)}+11)=x\\11*tan(36\°)=x-\frac{xtan(36\°)}{tan(46\°)}\\7.991=0.298x

x=26.81ft≈26.8ft

7 0
3 years ago
Can sb help me pls, don't press if you don't know the answer!!
arlik [135]

Answer:

101.6064

Sig Figs

7

101.6064

Decimals

4

101.6064

Scientific Notation

1.016064 × 102

E-Notation

1.016064e+2

Words

one hundred one point six zero six four

Step-by-step explanation:

6 0
2 years ago
The obriens are buying new windows for their house. The company installs the new windows for 2100 the total cost for buying the
Blizzard [7]

Answer:

14

Step-by-step explanation:

Given that:

Cost of purchase and installation = 5323.50

Cost per window = 230.25

Cost of installation = 2100

Hence,

Total purchase cost of windows alone :

5323.50 - 2100 = 3,223.50

Therefore, the number of windows purchased is :

(Total purchase cost of windows alone / price per window)

(3,223.50 / 230.25)

= 14

Hence, 14 windows was purchased

7 0
3 years ago
The price of a cup of coffee has dropped to $2.10 today. Yesterday's price was $2.35 . Find the percentage decrease. Round your
Lady bird [3.3K]
Percent increase/decrease is: (Change/original amount)x100 (.25/2.35)x100= 10.6%
6 0
3 years ago
Solve for y.<br> 5(v+2) = -2(7v-3) + 9v<br> Simplify your answer as much as possible
sveticcg [70]

Answer:

v=-2/5 hope this is helpful

5 0
3 years ago
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