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Phantasy [73]
3 years ago
10

The length of a rectangle is the sum of the width and 3. The area of the rectangle is 54 units. What is the width, in units, of

the rectangle?
Mathematics
1 answer:
zimovet [89]3 years ago
8 0

Answer:

Let a be the width and b the length

a+3=b

a*b=54

a(a+3)=54

a^2+3a-54=0

a=6

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Tried a couple times but cant seem to find the answer, would appreciate an explanation.
wlad13 [49]

Answer:

  • Option C

Step-by-step explanation:

You just need tp translate what is written in the two- column proof into paragraph.

Given that the two angles have same measure of 125°, by transitive property we proof that the angles are congruent.

We don't perform any of addition,  division or multiplication operations. We just compare the angle measures and come to conclusion.

This is best described in the paragraph C

3 0
3 years ago
a bag of 28 tulip cointains 11 red tulip, 8yellow tulip buibs and 9purple tulip bulbs. Suppose two are randomly selected . What
Tcecarenko [31]

Answer:

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Step-by-step explanation:

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3 years ago
Please help me with 13 12 10 9 8 6 BONUS:7 44 POINTS!!!
mixas84 [53]
13. 38cm

12. 759.96ft

10. A) I believe

9. 3400mm

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6. a) no

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3 0
3 years ago
Read 2 more answers
Sodium chlorate crystals are easy to grow in the shape of cubes by allowing a solution of water and sodium chlorate to evaporate
Setler79 [48]

Answer:

48 mm ^ 2

Step-by-step explanation:

We know we have a cube of side x, therefore the volume of that cube will be equal to:

V = x ^ 3, because it is a cube and each side is the same.

Now the derivative of the volume with respect to the length (that is, x) would be:

dV / dx = 3 * (x ^ 2)

They tell us that x takes a value of 4, replacing we have:

dV / dx = 3 * (4 ^ 2) = 48

That is, 48 mm ^ 2 would be the value of dV / dx when x is equal to 4 mm.

6 0
3 years ago
State the common factor of the terms in the polynomial 5x^2 + 30x^2 - 10x. Then factor the polynomial
tatuchka [14]

Answer:

The common factor is 5x.

The factored polynomial is: 5x(7x - 2)

Step-by-step explanation:

Factor of the numbers:

The common factor of the numbers 5, 30 and 10 is 5, as it is the greater common divisor of them, as found below:

5 - 30 - 10|5

1 - 6 - 2

Factor of the exponents:

Between x^2, x^2 and x, the common factor is the x with the lowest exponent. So x

Common factor

Number multiplied by exponents, so 5x.

Factoring the polynomial:

5x^2 + 30x^2 - 10x = 5x(\frac{5x^2}{5x} + \frac{30x^2}{5x} - \frac{10x}{5x}) = 5x(x + 6x - 2) = 5x(7x - 2)

The factored polynomial is: 5x(7x - 2)

6 0
2 years ago
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