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ollegr [7]
3 years ago
7

NEED DONE ASAP

Mathematics
2 answers:
natulia [17]3 years ago
5 0

Answer:

C: 80

Step-by-step explanation:

Place the compass with same radius open at B to draw an arc meeting the previous arc. Produce an arm from this point to bisect the angle previously drawn.

MariettaO [177]3 years ago
4 0
It’s 40 degrees since the bisect of an angle is just half of the original angle.
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Simplify<br>-6√20+2√45+7√5 <br><br>show Woking out to prove ans please​
Dmitry_Shevchenko [17]

Answer:

\sqrt{5}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Simplifying the radicals

\sqrt{20} = \sqrt{4(5)} = \sqrt{4} × \sqrt{5} = 2\sqrt{5}

\sqrt{45} = \sqrt{9(5)} = \sqrt{9} × \sqrt{5} = 3\sqrt{5}

Thus

- 6(2\sqrt{5}) + 2(3\sqrt{5}) + 7\sqrt{5}

= - 12\sqrt{5} + 6\sqrt{5} + 7\sqrt{5}

= \sqrt{5}

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3 years ago
In a survey of 150 students, 90 students were taking algebra and 30 were taking biology. What is the least number of students wh
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5 0
3 years ago
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Find the discriminant of x^2+6x+13=0. What does this number tell you about how many real solutions there are to the equation? Sh
Lana71 [14]
Discriminant = sq root of b^2 - 4*a*c =
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5 0
3 years ago
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Can someone help me here please!?
Maksim231197 [3]
The answer is A p = 1.6m
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3 years ago
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Estimate m :140 = m + 125
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