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3 years ago

What are the two square roots of 121/49

Mathematics

2 answers:

marusya05 [52]3 years ago

6 0

Answer:

11/7, I copied it from the other answer, and I need brainiest if i'm going to rank up before I hit triple the points needed for my rank-up.

sasho [114]3 years ago

5 0

11/7, Hope this helps.

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The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .

Given:

Length = Height - 4 = h - 4

Width = 3 in

We need to find the height of the box.

Solution:

We know that the volume of the box.

$Volume = Length\times height\times width$

Substitute all given value in above formula.

$258.75 = (h-4)\times h\times 3$

Rewrite the equation as:

$258.75 = 3h(h-4)$

$258.75 = 3h^2-12h$

$3h^2-12h-258.75=0$

whole equation divided by 3.

$h^2-4h-86.25=0$

Use quadratic formula with $a = 1, b = -4,c=-86.25$

$h=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put these a, b and c value in above equation.

$h=\frac{-(-4)\pm \sqrt{(-4)^{2}-4(1)(-86.25)}}{2(1)}$

$h=\frac{4\pm \sqrt{16+345}}{2}$

$h=\frac{4\pm \sqrt{361}}{2}$

$h=\frac{4\pm 19}{2}$

For positive sign

$h=\frac{23}{2}$

h = 11.5 in

For negative sign

$h=\frac{-15}{2}$

h = -7.5

We take positive value of h.

Therefore, the height of the box h = 11.5 in

4 0

3 years ago

Ito ang mabilis na pag lawak ng impluwensya ng kanluranin

Sophie [7]

Answer:

No one will answer your question beacuse your in brainly.com go to brainly.ph many filipinos will answer your question

Step-by-step explanation:

Go to settings then if you saw the change brainly.com click it then find pilipinas

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3 years ago

What radian measure is equivalent to 75 degrees

koban [17]

WORK

5π/12
75∘⋅π/180∘=5π/12

Therefore the answer not rounded is 1.309 radians

7 0

3 years ago

Simplify the given expression below: 4 divided by the quantity of 3 minus 2i

svetoff [14.1K]

This is rationalising the denominator of an imaginary fraction. We want to remove all i's from the denominator.

To do this, we multiply the fraction by 1. However 1 can be expressed in an infinite number of ways. For example, 1 = 2/2 = 3/3 = 4n^2 / 4n^2 (assuming n is not zero!). Let's express 1 as the complex conjugate of the denominator, divided by the complex conjugate of the denominator.

The complex conjugate of (3 - 2i) is (3 + 2i). Then do what I just said:

4/(3-2i) * (3+2i)/(3+2i) = 4(3+2i)/(3-2i)(3+2i) = (12+8i)/(9-4i^2) = (12+8i)/(9+4) = (12+8i)/13

This is the answer you are looking for. I hope this helps :)

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3 years ago

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The stem and leaf plot shows high temperatures

Veronika [31]

Answer: 54 Degrees, 2days

Step-by-step explanation:

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3 years ago

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