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4 years ago

Select the polynomial that is a perfect square trinomial.

1 answer:

5 0

$(a\pm b)^2=a^2\pm2ab+b^2$

$a)\ 49x^2-8x+16=(7x)^2-2\cdot x\cdot4+4^2-NOT\\\\b)\ 4a^2-10a+25=(2a)^2-2\cdot a\cdot5+5^2-NOT\\\\c)\ 25b^2-5b+10=(5b)^2-5b+10-NOT\\\\d)\ 16x^2-8x+1=(4x)^2-2\cdot4x\cdot1+1^2=(4x-1)^2-YES!$

$\text{Answer: d)}$

You might be interested in

What numbers less than 200 are divisble by 4 but not 12

kolezko [41]

Answer:

There are 48 numbers that satisfy the condition

Step-by-step explanation:

Find the relationship between 3 and 12

3 * 4 = 12

The maximum number of multiples of 12 within 200 is 18.

The maximum number of multiples within 200 is 66.

So the number of numbers within 200 that go exactly into 3 but not exactly into 12 is:

66-18 = 48

3 0

3 years ago

An oblique cone has a radius of 4 units, a height of 8.5 units, and a slant length of 11.7 inches. What is the volume of the obl

trasher [3.6K]

Oblique Cone

The volume of the oblique cone is 144.49 cubic inches , if an oblique cone has a radius of 4 units, a height of 8.5 units, and a slant length of 11.7 inches.

Step-by-step explanation:

An oblique cone has a radius of 4 units

A height of 8.5 units

A slant length of 11.7 inches

We have to use the slant height to calculate actual base

So in a right angle triangle when two sides are given the third side is calculated by

Root (sqr(11,7) - sqr(8.5)) = 8.03 units

$\sqrt{11.7^{2} - 8.5^{2} }$

⇒ 8.03 units

Formula to calculate the volume of oblique cone,......................(1)

V = $\frac{1}{3} bh$

If r is the distance of the base of the height from the center of the circle [ this is because the base of the height is outside the oblique cone]

V = $\frac{1}{3} \pi r^{2} h$

Where r is the distance if the base of the height from the center of the circle [ this is because the base of the height is outside the oblique cone]

Here r = 8.03 - 4 = 4.03 units

Volume = $\frac{1}{3}$ × 3.14 × 4.03 × 4.03 × 8.5

Volume = 144.49 cubic inches

Hence, the volume of the oblique cone is 144.49 cubic inches , if an oblique cone has a radius of 4 units, a height of 8.5 units, and a slant length of 11.7 inches.

6 0

3 years ago

Read 2 more answers

The answer please for my online class

Eddi Din [679]

Answer:

B. -500

Step-by-step explanation:

$\dfrac{(2a^4)^2}{a^0a^5} =$