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Helen [10]
3 years ago
5

Evaluateeee????????????

Mathematics
2 answers:
andreev551 [17]3 years ago
8 0
The answer is 15. just replace the letters with the numbers they're equal to.
amid [387]3 years ago
4 0
3x^2 - 2xy + 4y^2 ; x = -1 , y = -2
3(-1)^2 - 2(-1)(-2) + 4(-2)^2
3(1) - 4 + 16
3 - 4 + 16
-1 + 16
15

The answer is c) 15
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A pilot is allowed to fly a maximum of 60,000 minutes per year How many hours is a pilot allowed to fly in a year? (Round to the
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The answer is 1000 hours
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2 years ago
The perimeter of △CDE is 55 cm. A rhombus DMFN is inscribed in this triangle so that vertices M, F, and N lie on the sides CD ,
tamaranim1 [39]

Answer:

CD=20 cm and DE=15 cm. CD=20 cm and DE=15 cm.

Step-by-step explanation:

A rhombus DMFN is inscribed in such a way that it is inscribed in  triangle CDE with the vertices M, F, and N l on the sides CD , CE , and DE respectively.

Now, in rhombus, the parallel sides are always parallel, therefore

MF║DE, thus, \frac{CM}{MD}=\frac{CF}{EF} by the basic proportionality condition.

It is given that CF=8 cm and EF=12 cm, therefore, \frac{CM}{MD}=\frac{8}{12}.

That is CM=8 cm and MD=12 cm. Therefore, CD=CM+MD=8+12=20.

According to question, Perimeter of △CDE =55 cm

⇒CD+DE+CE=55

⇒20+DE+20=55

⇒DE=15 cm

Hence, CD=20 cm and DE=15 cm.

8 0
3 years ago
Read 2 more answers
Look at picture because I cannot put square roots in
monitta

Answer:

45

Step-by-step explanation:

7 0
3 years ago
Find the lowest common denominator of and . A. x3y4 B. x2y3 C. xy4 D. x4y5
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Lowest Common Denominator refers to lowes t common multiple. These expressions have two terms 'x' and 'y' and we want to choose the expression that has the highest power such that the other expressions can be multiplied into the common denominator.

For the 'x' term, the highest power is x⁴ and for the 'y' term, the highest power is y⁵

Common denominator of A, B, C, and D: x⁴y⁵




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Ifx =y at two points what can you coclude about =y
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Answer:

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Step-by-step explanation:

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