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jeka94
3 years ago
13

20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)

Mathematics
1 answer:
Kaylis [27]3 years ago
8 0

Answer:

13

Step-by-step explanation:

Diagonals of a rhombus are perpendicular bisector.

Hence, triangle ABE so formed would be a right triangle right angled at E.

Therefore, by Pythagoras theorem:

AB =  \sqrt{AE^2 + BE^2 }  \\  \\  \therefore \: AB =  \sqrt{5^2 + 12^2 }  \\  \\  =  \sqrt{25 + 144}  \\  \\  =  \sqrt{169}  \\  \huge \red { \boxed{ \therefore \: AB= 13}}

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What is the answer and steps to do it 45 +5/6x =50
Nookie1986 [14]
<span><span>Equation:- 45+<span><span>5/6 </span>x</span></span>=50
</span>1) Simplify both sides of the equation. <span><span><span><span>5/6 </span>x </span>+ 45 </span>= 50
</span>2) Subtract 45 from both sides. <span><span><span><span><span>5/6 </span>x </span>+ 45 </span>− 45 </span>= <span>50−45 </span></span><span><span><span>5/6 </span>x</span>=5
</span>3) Multiply both sides by 6/5.<span><span><span>(<span>6/5</span>)</span>*<span>(<span><span>5/6 </span>x</span>)</span></span>=<span><span>(<span>6/5</span>)</span>*<span>(5)</span></span></span><span>x=6

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Hope I helped.
4 0
3 years ago
Three roots of the polynomial equation x4 - 4x3 - 2x2 + 12x + 9 = 0 are 3, -1 and -1. Explain why the fourth root must be a real
LiRa [457]
Descares Theorem says that the number of roots of a polynomial is equal to its highest exponent, and the roots could be real and/or imaginary (complex).

However is their is one complex root (a + i.b), it's conjugate is also
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3 0
3 years ago
I wil give brainleiat
AlladinOne [14]

Answer:

a) 300 + 80h = x

b) $780

Step-by-step explanation:

So, the original cost is $300, plus an additional $80 times the number of hours rented.

h will represent the number of hours rented

x will represent our total cost (use whatever variable your teacher expects :))

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This is our equation. Now, we want to find the cost for 6 hours. Substitute 6 in for h.

300 + 80(6) = x        Solve for x.

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Hope this helps :)

NOTE: I noticed in part a, it referred to a "dunking booth". I solved this problem as if that was a typo and they were referring to the jumper.

3 0
2 years ago
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kykrilka [37]

Answer:

11.21

Step-by-step explanation:

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2 years ago
a small business owner borrowed $4,200 at an annual simple interest rate of 12% what is The Total amount That Must be repaid in
worty [1.4K]

Answer:

You would divide 4,200 by 12=350

Step-by-step explanation:

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3 years ago
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