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statuscvo [17]
2 years ago
8

What is the area? 10 in and 10 in. ____ square inches.

Mathematics
2 answers:
Sladkaya [172]2 years ago
6 0

Answer:

100 inches squared.

Step-by-step explanation:

10x10=100

Alla [95]2 years ago
4 0

Answer:

100 in^2

Step-by-step explanation:

To find the area of a parallelogram we multiply height with base

10×10 = 100 in^2

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Yes, it has to be like that.
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6. Which equation represents: "Seven times the difference of a number and tenis
enot [183]

Answer:

12

Step-by-step explanation:

let the number=x

7(x-10)=x+2

7x-70=x+2

7x-x=2+70

6x=72

x=72/6=12

7 0
3 years ago
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Tickets to the end of year carnival are 18$ for 4 tickets what is the cost of 9 tickets
melamori03 [73]

Answer:

40.50 for 9 tickets

Step-by-step explanation:

We can use a proportion to solve

18 dollars       x dollars    

-------------  = ---------------

4 tickets        9 tickets

Using cross products

18 *9 = 4x

162 = 4x

Divide by 4

162/4 = 4x/4

40.50 =x

3 0
3 years ago
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Do problem 5 show work i will mark brainliest!!!!!
Fittoniya [83]

Answer:

20

Step-by-step explanation:

The sides of the park measure 30 m and 40 m. They form the sides of a rectangle. The length of the path is along the length and width of the park, so by going along the path, the distance is

30 m + 40 m = 70 m

Going through the park, you walk in a straight line from the park to the home along a diagonal of the rectangle. That diagonal is a hypotenuse of a right triangle whose sides measure 30 m and 40 m. We use the Pythagorean theorem to find the length of the diagonal.

a^2 + b^2 = c^2

Let the legs of the right triangle be a and b. Let the hypotenuse be c.

(30 m)^2 + (40 m)^2 = c^2

900 m^2 + 1600 m^2 = c^2

c^2 = 2500 m^2

Take the square root of each side.

c = 50 m

The direct path from the school to the house is 50 m.

Difference: 70 m - 50 m = 20 m

Answer: You save 20 m.

8 0
3 years ago
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PLEASE HELP ILL DO THE SAME PLEASE AND I NEED STEP BY STEP IM TRYING TO LEARN :(
son4ous [18]

Answer:

5)

Line 1: y=-x+3

Line 2: y=3x-3

6)

Line 1: y=\frac{1}{2}x-2

Line 2: y=-\frac{5}{2}x+6

7)

See below

Step-by-step explanation:

To write the system of equations on the graph, you just need to write the 2 equations of the 2 lines.

5)

The first thing to do is find the slope of the lines. Pick one of them, and start by finding 2 points on that line that land perfectly on the grid.

It's pretty hard to read that top graph in the photo, but I think I see these ones marked:

Line 1: (0, 3) and (3, 0)

Line 2: (0, -3) and (2, 3)

Make sure I got them correct, because the equations will be wrong otherwise. Same for problem 6. To find the slope, divide the change in y by the change in x. Starting with line 1, y went from 3 to 0, so a change of -3. x went from 0 to 3, so a change of 3.

Divide the change in y by the change in x:

m=\frac{y2-y1}{x2-x1}\\\\m=\frac{0-3}{3-0}\\\\m=\frac{-3}{3}\\\\m=-1

The slope of line 1 is -1. That means every time x increases by 1, y decreases by 1. You can see that on the line.

Now for line 2:

m=\frac{3--3}{2-0}\\\\m=\frac{6}{2}\\\\m=3

When x increases by 1, y increases by 3.

The last thing to do is find the y-intercept of both lines. That's just where the line intersects the y-axis, at x = 0, and it's clearly visible on the graph so there isn't much to do.

Line 1: 3

Line 2: -3

Now, you can write the equations for these lines in slope intercept form:

y=mx+b

where m is the slope and b is the y-intercept we found above.

Line 1: y=-x+3

Line 2: y=3x-3

In line 1, -1x can be simplified to just -x.

6)

I'll do the exact same process here, but with less explaining. Let me know if you have any questions.

Find 2 points:

Line 1: (0, -2) and (4, 0)

Line 2: (0, 6) and (4, -4)

Find the slope of line 1:

m=\frac{y2-y1}{x2-x1}\\\\m=\frac{0--2}{4-0}\\\\m=\frac{1}{2}

and line 2:

m=\frac{-4-6}{4-0}\\\\m=\frac{-10}{4}\\\\m=-\frac{5}{2}

Now, the y-intercepts:

Line 1: -2

Line 2: 6

Write the equations:

Line 1: y=\frac{1}{2}x-2

Line 2: y=-\frac{5}{2}x+6

7)

A system with 1 solution means 2 lines that intersect at 1 point. Problems 5 and 6 are both examples of this. A system with no solution means lines that never intersect, meaning that they have the same slope, they're parallel.

Example:

y=2x+1\\y=2x+2

Those both have a slope of 2, and if you graph them, you'll see that they never intersect.

A system with infinitely many solutions means they intersect at every possible point. These would just be the same line.

Example:

y=2x+1\\y=2x+1

That's what they are, graph them however you like.

3 0
2 years ago
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