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Aliun [14]
4 years ago
7

*math* explantion needed!

Mathematics
1 answer:
Paha777 [63]4 years ago
5 0

Answer:

two real, equal roots

Step-by-step explanation:

Start by finding the discriminant, b^2 - 4ac.  The coefficients of this quadratic are a = 49, b = 42 and c = 9.  The discriminant is therefore

(42)^2 - 4(49)(9) = 0.  Rule:  If the discriminant is zero (0), then the quadratic has two real, equal roots.

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In this question, you would be solving the expression by combining like terms.

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4 years ago
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A triangle weighs 3 grams and a circle weighs 6 grams. Find the weight of a square in Hanger A and the weight of a pentagon in H
Zanzabum

Answer:

Equation of Hanger A:

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Step-by-step explanation:

Note: This question is not complete, and lacks necessary data to answer this question. But for the sack of concept, we wil be solving this question using our own data.

Data given:

Triangle weight = 3 grams

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There are two hangers A and B.

We have to find weight of the square in Hanger A and weight of the pentagon in Hanger B.

So, for your understanding I have drawn the two hangers A and B. In A we have triangle and circle on the LHS and the square on the right. On the other hand, we have pentagon on the right and triangle and circle.

Sketch is attached in the attachment.

Let's suppose: Hanger A is balanced, So,

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weight of the pentagon in Hanger B = p

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x + y = z

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