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3 years ago

I don't know how to solve this

Mathematics

1 answer:

sergiy2304 [10]3 years ago

4 0

The answer that I got was side WX = 12 inches

It says that WY is congruent to XY which means that they are the same. That means that XY is also 3m-4. It also says that the perimeter of the triangle is 76 inches.

With this information I set up an equation:

3m-4 + 3m-4 +m = 76

(The number on the right side is the perimeter given to us in the problem and the numbers on the left side are the 3 side lengths).

I combined like terms on the left side and ended up with:

7m-8=76

I added 8 to both sides of the equation and got 7m=84.

Finally I divided both sides by 7 and got m=12

m is equivalent to side WX..

Hope this helps!

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Help me with this please ASAP

Natasha2012 [34]

Answer:

Hi there your answer is $8x^{6}$

Step-by-step explanation:

Hi... You have to muliply 4 and 2 which will equal to 8

Then, if you know the exponent rule for the Product Rule or don't I'll still give it you here it is

$x^{m}*x^{n}=x^{m+n}$

In this case we will be adding 3 and 3 which will equal to 6

Which your answer will be

$8x^{6}$

4 0

3 years ago

A banner in the shape of an isosceles triangle is hung over the side of a building. The banner has a base of 30ft (at the roof),

Rashid [163]

Answer:

W = 9600000 joules

Step-by-step explanation:

From the given information:

The area of the banner = 1/2 × 30 × 20 = 300 ft²

The mass of the banner = 300 × 50 = 15000 pounds

Now; the integral for the required work is:

$W = \int^h_o F \ ds$

here;

h = height of the building

F = mg = 15000g

g = 32 ft/s²

Therefore;

$W = \int ^h_o 15000g \ ds$

$W = \int ^{20}_0 \ 15000 (32)(20)$

W = 9600000 joules

7 0

3 years ago

You can model the population of a certain city between 1955-2000 by the radical function

OverLord2011 [107]

Complete Question:

You can model the population of a certain city between 1955-2000 by the radical function

P(x) = 55,000 sqrt x-1945

Using this model, in which year was the population of that city 275,000?

Answer:

In 1970 population of that city is 275,000

Solution:

Given that,

You can model the population of a certain city between 1955-2000 by the radical function :

$P(x) = 55000\sqrt{x - 1945}$

To find: year in which was the population of that city 275,000

Therefore,

x = ?

P(x) = 275000

Thus we get,

$275000 = 55000\sqrt{x - 1945}\\\\Divide\ both\ sides\ by\ 55000\\\\\frac{275000}{55000} = \sqrt{x-1945}\\\\5 = \sqrt{x - 1945}\\\\Take\ square\ on\ both\ sides\\\\25 = x - 1945\\\\x = 1945 + 25\\\\x = 1970$