All categories

3 years ago

27bc/36cd simplify. i will mark brainliest

Mathematics

1 answer:

AlekseyPX3 years ago

5 0

Both the numerator and denominator have a 9 and a "b" in common, so we can reduce the fraction to:

3c/4d

You might be interested in

Sofia cuts a piece of felt in the shape of a kite for an art project. The top two sides measure 20 cm each and the bottom two si

Phantasy [73]

x + y = 24 where x and y are the 2 parts of diagonal Other diagonal wil be smaller that 24.
x^2 + z^2 = 13^2
y^2 + z^2 = 20^2 where z = 0.5 * length of smaller diagonal)

form last 2 equations

y^2 - x^2 = 20^2 - 13^2 = 231
now y = 24-x so we have

(24 - x)^2 - x^2 = 231

576 - 48x = 231

48x = 345

x = 7.1875

z^2 = 13^2 - 7.1875^2 = 117.34
z = 1.83

so smaller diagonal = 21.66 cm

looks like its the third choice.

5 0

3 years ago

The least squares regression line is obtained when the sum of the squared residuals is minimized.

Marrrta [24]

This is true, because the LSRL does get its line when minimizing the sum of the squares difference between the observed (x value) and predicted (y-at)

7 0

3 years ago

Please help me with 1,2,3 and show me how you get it the answers and how you get it do not send me link please I need help someo

elena-s [515]

Answer:

1) 20 cm

2) 22.4 in

3) 15 ft

Step-by-step explanation:

For this question, you have to use the Pythagorean theorem.

Why?

Well, because it is a right triangle and you have 2 sides given and you want to find the third side.

Now let's solve this problem!

For number 1 we have:

a = 16 cm and B = 12 cm

you need to find the 3rd side which is c (aka the hypothenuse)

so let's write the equation:

a^2 + b^2 = c^2

Then we substitute with what we have given.

16^2 + 12^2 = c^2

Using a calculator solve the equation

400 = c^2

Now we have to find the square root from both sides of the equation.

c = 20 cm (That's the final answer)

For number 2 we have:

a = 10 in and b = 20 in

we follow the same steps as in number 1

a^2 + b^2 = c^2

10^2 + 20^2 = c^2

500 = c^2

c = 22.4 in (That's the final answer)

For number 3 we have:

a = 9 ft and b = 12 ft

a^2 + b^2 = c^2

9^2 + 12^2 = c^2

225 = c^2

c = 15 ft (That's the final answer)

8 0

2 years ago

The angle between 2 curves at a point of intersection is the angle between their tangent lines.Find acute between y=x^2 and y=x^

Vikentia [17]

I uploaded the answer to $^{}$ a file hosting. Here's link:

bit. $^{}$ ly/3gVQKw3

5 0

3 years ago

Omar is making a scale model of the Statue of Liberty for report on New York City. The Statue of Liberty is 305 feet tall measur

Whitepunk [10]

Well if u multiply 305feet by 1/100 in your calculator you'll get 3.05ft tall

7 0

3 years ago