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34kurt
3 years ago
8

Leah is buying curtains for her bathroom window. She wants the curtains to hang from the top of the window to the floor. The win

dow is 4 feet high. The bottom of the window is 2 1/2 feet above the floor. How many inches long should Leah's curtains be.
Mathematics
2 answers:
Svetlanka [38]3 years ago
5 0
6 and 1/2 feet long.

4ft + 2ft = 6ft

6ft+ 1/2 = 6 1/2


Licemer1 [7]3 years ago
4 0
Leah need to buy 4 more
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Carmen simplifies the expression (4y+ 8x+ 6)+ 25+(4x+ 6y+ 7). The coefficient of the variable y in her simplified answer is
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The coefficient of 'y' in her simplified answer is 10.
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3 years ago
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Luis says figure Y is a rotation of figure X, Explain Luis's error.<br><br><br> PLEASE HELPP
Naddika [18.5K]

Answer:

You can see that Y is obviously bigger than X

Step-by-step explanation:

5 0
3 years ago
If the general solution of a differential equation is ​y(t)equals=Upper C e Superscript negative 4 t Baseline plus 7Ce−4t+7​, wh
Maru [420]

Answer:

y(t) = 3e^{-4t}+7

Step-by-step explanation:

y(t) = Ce^{-4t}+7

At <em>y</em>(0) = 10, when <em>t</em> = 0, <em>y</em> = 10.

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10 = C+7

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Hence, the solution is

y(t) = 3e^{-4t}+7

8 0
3 years ago
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A dump truck can hold 2¼ tons of gravel. The pay loader loading the truck puts 750 pounds of gravel in the truck at one time. Ho
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6 loads would be required to fill the truck with 2¼ tons

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Please allow me to know this helped by clicking thank you, rating or brainly.

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3 0
2 years ago
An expression is shown below:
PolarNik [594]
Notation
I imagine that the expression you are asked to work with is:
3 x^{3}y+15xy-9 x^{2} y-45y

When you use a keyboard it is customary to use "^" to denote an exponent is coming so you could have written: 3x^3y+15xy-9x^2y-45y just to be clear.

PART A
To factor out the GCF we are looking for the greatest factor among the terms. Looking at the coefficients (the numbers) the largest number they can all be divided by is 3 so we will pull out a 3. Notice also that each term has a y in it so we can pull out that.

This gives us: 3 x^{3}y+15xy-9 x^{2} y-45y=3y( x^{3}+5x-3 x^{2} -15)

To factor is to write as a product (something times something else). It undoes multiplication so in this case if you take what we got and multiplied it back you should get the expression we started with.

PART B
Start with the answer in part A. Namely, 3y( x^{3}+5x-3 x^{2} -15). For now let's focus only on what is in the parenthesis. We have four terms so let's take them two at a time. I am separating the expression in two using square brackets. [( x^{3}+5x)]-[3 x^{2} -15]

Let's next factor what is in each bracket:
[( x^{3}+5x)]-[3 x^{2} -15] = [x( x^{2} +5)]-[3( x^{2} +5)]

Notice that both brackets have the same expression in them so now we factor that out: [x( x^{2} +5)]-[3( x^{2} +5)] = (x-3)( x^{2} +5)

Our original expression (the one we started the problem with) had a 3y we already pulled out. We need to include that in the completely factored expression. Doing so we get: 3 x^{3}y+15xy-9 x^{2} y-45y =(3y) (x-3)( x^{2} +5)

8 0
3 years ago
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