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Marizza181 [45]
3 years ago
6

Define a variable, write an inequality, and solve each problem. # 30 Twice a number is more than the sum of that number and eigh

t.
Mathematics
1 answer:
laiz [17]3 years ago
8 0

n= number

2n > n+8

subtract n from each side

2n-n > n+8-n

n > 8

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Solve for y. Please help!!
Nadya [2.5K]

Answer:

y=3\sqrt{7}\ units

Step-by-step explanation:

see the attached figure with letters to better understand the problem

we know that

In the right triangle ABD

tan(

In the right triangle BCD

tan(

remember that

m< BAD=m<CBD

therefore

tan(

equate the equations

y/9=7/y

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creativ13 [48]
I'm confused what are you suppose to do
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Answer:

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7 0
3 years ago
If a 20 in. by 30 in. window has a wooden frame 4 inches wide surrounding it, what is the total area of the window and frame?
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Use technology to find points and then graph the line y=-5(x-5)+1 following the instructions below.
Svetach [21]

Given:

y=-5(x-5)+1

First, let us find two points from this equation.

We can set values of x and then solve for y.

Let us find the values of y when x = 1, 2, 3, 4, 5

\begin{gathered} y=-5(x-5)+1 \\ y=-5(1-5)+1=21 \\ y=-5(2-5)+1=16 \\ y=-5(3-5)+1=11 \\ y=-5(4-5)+1=6 \\ y=-5(5-5)+1=1 \end{gathered}

We now have a set of points:

(1, 21)

(2, 16)

(3, 11)

(4, 6)

(5, 1)

Since the given plane is limited to values of 10 and -10, the points that we can plot are the points (4, 6) and (5, 1)

The graph would then look like this:

6 0
1 year ago
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