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3 years ago

Which algebraic expression is a polynomial with a degree of 3?

1 answer:

7 0

It would be the second choice. This expression is a polynomial because it is multiple terms and is a degree of three because the largest exponent is three. So your answer is:
2y^3 + 5y^2 - 5y

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What is the purpose of rereading a text? Check all that apply.

natta225 [31]

To improve comprehension

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3 years ago

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Consider the given rectangle with heightequals4timeswidth. Let x be the width of the rectangle. Write an expression for the per

Salsk061 [2.6K]

Answer:

<h3>The expression for the perimeter P is $P=\frac{784+h^2}{2h}$ feet.</h3><h3> Area=49=lx square feet ( here $x=\frac{h}{4}$ )</h3>

Step-by-step explanation:

Given that rectangle with height equals 4times width.

It can be written as

$h=4\times width$

Let x be the width of the given rectangle

Therefore $h=4\times x$

$h=4x$

$\frac{h}{4}=x$

Rewritting the above equation we get

$x=\frac{h}{4}$

<h3>To write an expression for the perimeter P of the given rectangle :</h3>

Also given that area of the rectangle is 49 square feet.

Area=49 square feet.

We know area of rectangle = lw square units.

<h3>Therefore area=49=lx square feet ( here area=49 and w= $x=\frac{h}{4}$ )</h3>

Rewritting we get

lx=49 square feet.

$l=\frac{49}{x}$

$=\frac{49}{\frac{h}{4}}$

$l=\frac{49\times 4}{h}$

<h3> $l=\frac{196}{h}$ feet</h3><h3>Perimeter P $=2(l+w)$ units </h3>

$P=2(\frac{196}{h}+\frac{h}{4})$

$P=\frac{2(196)}{h}+\frac{2(h)}{4}$

$=\frac{392}{h}+\frac{h}{2}$

$=\frac{392(2)+h^2}{2h}$

5 0

3 years ago

If a = 10, then what is the value of 6a + 15?

lbvjy [14]

Answer:

Step-by-step explanation:

6(10)+15

60+15

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3 years ago

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The right pengtagonal prism has a height of 14 units, the volume of the prism is 840 cubic unit. what is the perimeter of the ba

Allisa [31]

Answer: 30

Step-by-step explanation:

Because you can break the pentagonal base into triangles and the formula to find the area of a triangle is 1/2 Bh so 840/14 = 60 divided by 1/2 = 30

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3 years ago

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Evaluate the expression 3mn if m=3 and n=7 please help me solve this problem and explain

Vinil7 [7]

Substitute 3 into the expression for m, and 7 into it for n. So 3mn = 3(3)(7) = 3 x 21 = 63.

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3 years ago

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