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Tcecarenko [31]
2 years ago
9

Helppp i literally dont understand this at all

Mathematics
1 answer:
Ksju [112]2 years ago
3 0

Answer:

D. Substitution

Step-by-step explanation:

I don't know how to explain it other than that they substituted the 50° angle into the original equation.

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in a wood there are 420 silver birch trees, 160 oak tees and 300 wild cherry trees. what is the percentage of the oak trees give
elena-14-01-66 [18.8K]

Answer:

18.2%

Step-by-step explanation:

The total number of trees in the wood = 420 + 160 + 300

                                                                = 880 trees

∴ The percentage of the oak trees = \frac{160}{880} * \frac{100}{1}

                                                            = \frac{2 * 100}{11}%

                                                            = \frac{200}{11}%

                                                            = 18.181818...%

In 1 decimal place = 18.2%

Hope this helps!!

8 0
3 years ago
Simplify<br><br> 14 +{ -2 + 3 [ 1 +3 ( -6 -2 ) ] }
gregori [183]
ANSWER: -57
14+{−2+3[1+3(−6−2)]}
= 14+{−2+3[1+3(-8)]}
= 14+{−2+3[1+(-24)]}
= 14+{−2+3[1-24]}
= 14+{−2+3[-23]}
= 14+{−2+[-69]}
= 14+{−2-69}
= 14+(-71)
= 14 - 71
= -57
5 0
2 years ago
PLEASE HELLLLPPPP (
morpeh [17]
If we solve this equation: <span>8.9=logx+7.9

</span> we get: <span>logx=<span>1</span></span>
5 0
3 years ago
Can anyone help me with number 7 and the last one and asap <br>and quicccck!
poizon [28]
Algerbratic Expression
5 0
3 years ago
Read 2 more answers
Y^1/3(y^4/9-8y^2/9) how do you solve this
Step2247 [10]
I hope this helps you

5 0
3 years ago
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