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3 years ago

The height of a triangle is six times the base write an expression for the area of the triangle and let x be the base

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

4 0

Answer:

Step-by-step explanation:

The formula fo an area of a triangle:

$A=\dfrac{bh}{2}$

b - base

h - height

We have

x - base

6x - height

Substitute:

$A=\dfrac{(x)(6x)}{2}=\dfrac{6x^2}{2}=3x^2$

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2 years ago

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AnnZ [28]

Answer:

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Step-by-step explanation:

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2 years ago

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Scorpion4ik [409]

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3 years ago

What is the least common multiple of 2x^2 and 4x+12

Shalnov [3]

Answer:

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Step-by-step explanation:

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3 years ago

What is the length of the rectangle?

gregori [183]

Step-by-step explanation:

$area \: of \: rectangle \: = 60 \: {yards}^{2} \\ \therefore \: (w + 4) \times \: w = 60\\ \\ \therefore \: {w}^{2} + 4w -60 = 0 \\ \\ \therefore \: {w}^{2} + 10w - 6w -60 = 0 \\ \\ \therefore \: w({w} + 10) - 6(w + 10)= 0 \\ \\ \therefore \: ({w} + 10) (w- 6)= 0 \\ \therefore \: {w} + 10 = 0 \: or \: w- 6 = 0 \\ \therefore \: {w} = - 10 \: or \: w = 6 \\ \because \: sides \: of \: rectangle \: cant \: be \: negative \\ \therefore \: w \neq \: - 10 \\ \\ \therefore \: w = 6 \\ \\ \therefore \: w + 4 = 6 + 4 = 10 \\ \\ length \: of \: rectangle \: = 10 \: yards.$

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2 years ago