3 years ago

Which of the following is the square of a binomial

Mathematics

1 answer:

Ronch [10]3 years ago

5 0

Answer:

Step-by-step explanation:

(a+b)² = a² + 2ab + b²

The only choice that has the form a² + 2ab + b² is D.

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(co Write a cosine function that has an amplitude of 2, a midline of 5 and a period of 8.

tatyana61 [14]

Answer:

y=2 cos (π/4x-π/4)

Step-by-step explanation:

Given

A cosine function has an amplitude of 2, a midline of 5 and a period of 8.

To find:

A cosine function.

Explanation:

Let the function be,

$y=Acos(ws+p)$

Since amplitude is 2.

Then,

$A=2$

Also, since the period is 8.

Then,

$w=\frac{2\pi }{8}$

$w=\frac{\pi }{4}$

And, since midline is 5.

Hence, the cosine function is,

y=2 cos ( $\frac{\pi }{4}$ x- $\frac{\pi }{4}$

6 0

2 years ago

What is the value of x? enter your answer in the box.

Mamont248 [21]

Answer:

if 9x8 =72

then 56/8= 7

x=7

8 0

3 years ago

An airplane travels at an average speed of 250 mph for 3 hours.

spayn [35]

250 × 3 = 750

Your answer is D. 750 mi

3 0

3 years ago

Use the net to find the surface area of the square pyramid

SpyIntel [72]

Answer:

473

Step-by-step explanation:

The square surface area is 121 (11x11)

For the triangles, you do 16x11, which equals 176 and then divide by 2, to get 88. Since there are 4 triangles, I did 88x4 and got 352 and then added 121 to get 473

4 0

3 years ago

Read 2 more answers

The median and mean scores for a math test are shown.

Furkat [3]

Answer:

A? I think

Step-by-step explanation:

3 0

3 years ago