Help! Help! Help! Help!

Mathematics

1 answer:

just olya [345]2 years ago

7 0

Answer:

about $2269

Step-by-step explanation:

If we assume the aspect ratio of the two screens is the same, then the area is proportional to the square of the diagonal dimension.

The diagonal dimension of the larger HDTV is 65/32 ≈ 2.0313 times that of the smaller one. So, the price is expected to be ...

$550 × 2.0313² ≈ $2269.29

You expect the 65" HDTV to cost about $2269.

You might be interested in

I really need help...Will mark brainiest

Sophie [7]

Answer:

$x^{2} -1$

Step-by-step explanation:

You will need to multiply and distribute out the equation.

$(x-1)(x+1)\\x^{2} - x + x -1\\x^{2} - 1$

3 0

3 years ago

The product of a number and 7 less than the number is 260. Find the numbers.

Mariulka [41]

Answer: 20,-13

Step-by-step explanation:

We can rewrite the problem as an equation. This equation is x(x-7)=260 (x being the mystery number). We can simply this into x^2 -7x=260. We can then rewrite this as x^2 -7x -260=0. We need to find the roots of this quadratic, which are -13 and 20. You can find this by factoring the quadratic.

8 0

2 years ago

A cylinder has a radius of 2.8 inches and a height of 2.4 inches. Which cylinder is similar?

Eddi Din [679]

If two figures are similar, the ratio of their corresponding sides are equal

Let us take the ratio of the radius to the height of the given cylinder. This gives us,

$\frac{radius}{height}=\frac{2.8}{2.4}$