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3 years ago

Find the area of each. Show all work and include units. Round to the nearest tenth, if needed 2.1mi 4mi 4.6mi

Mathematics

1 answer:

lbvjy [14]3 years ago

3 0

Not sure what shape it is I’m assuming triangle. With what you have the answer should be 10.7mi

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If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

_________________________________

Three quarters of it means :

$\frac{3}{4}x \\$

_________________________________

Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

_________________________________

Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

_________________________________

What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

$\frac{3}{4}x = 102 \\$

Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

$x = 34 \times 4$

$x = 136$

So that number is 136 .

_________________________________

And we're done.

Thanks for watching buddy good luck.

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5 0

3 years ago

Given: Two distinct circles that are tangent to each other at a common point. How many tangent lines can be drawn that touch bot

nika2105 [10]

there are only 3 tangent lines can be drawn that touch both circles

ok done. Thank to me :>

7 0

3 years ago

The formula κ(x)= f′′(x) 1+f′(x)23/2 expresses the curvature of a twice-differentiable plane curve as a function of x. Use thi

Katyanochek1 [597]

Answer:

K(x) = $\frac{-10}{[1 + (-10x)^2]^{\frac{3}{2} } }$ ( curvature function)

Step-by-step explanation:

considering the Given function

F(x) = $-5x^2$

first Determine the value of F'(x)

F'(x) = $\frac{d(-5x^2)}{dy}$

F'(x) = -10x

next we Determine the value of F"(x)

F"(x) = $\frac{d(-10x)}{dy}$

F" (x) = -10

To find the curvature function we have to insert the values above into the given formula

K(x) $= \frac{|f"(x)|}{[1 +( f'(x)^2)]^{\frac{3}{2} } }$

K(x) = $\frac{-10}{[1 + (-10x)^2]^{\frac{3}{2} } }$ ( curvature function)

6 0

4 years ago

When 3 is subtracted from one third of a number n the result is less than 6 which inequality and solution represent this situati

Usimov [2.4K]

The first one is the answer

8 0

3 years ago

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A bakery makes 40 different kinds of muffins. 25% of the muffins have chocolate as an ingredients. How many kinds of muffins hav

Mumz [18]

Answer:

10 muffins

Step-by-step explanation:

10 is 25% (one-fourth) of 40

8 0

3 years ago

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