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GREYUIT [131]
3 years ago
11

Origami is the Japanese art of paper folding. The diagram below represents an unfolded paper kabuto, a samurai warriors helmet.

From the kabuto below, which of the following are pairs of congruent angles? Check all that apply.​

Mathematics
1 answer:
sasho [114]3 years ago
3 0

Answer:

A, C, and D  

Step-by-step explanation:

A. QRC and QRO

C. IRS and MRS

D. CRU and IRU

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Explain why their are no solutions to the system of inequalities <br> y ≤2x-5 <br> y ≥2x+1
rosijanka [135]

Answer:

Sorry this is late and I think this is right.

They are both parallel, they have the same slope, and do <em>not </em>intersect. If you were to draw a slope out for it, you would find this to be true.

For example: Say the question called for you to explain why there aren't any solutions to these system of inequalities:

<em>y < - 1/2x -3</em>

<em>y > 1/2x + 2</em>

<em>y= -x/2 -3</em> and <em>y= -x/2 + 2 </em>have the same exact slope, are parallel, and never intersect. The first line is 5 units below the second line when x = 0. Because the lines are parallel, it is always below the second line. The solutions of y < - x/2 -3 are the points in the plane below the first line. The solutions of y > 1/2 + 2 are points above the second line.

I hope this helps you. Good luck on whatever you're working on and stay safe! Please let me know if this helped you or didn't.

7 0
3 years ago
Find the value of f(-9)
almond37 [142]

Answer: 2

Step-by-step explanation:

When x=-9, y=2. So, f(-9)=2.

7 0
2 years ago
A grocery store sells a bag of 6 oranges for $4.20. If ayden spent $2.80 on oranges,how many did he buy?
BaLLatris [955]
Ayden bought 4 oranges.
Explanation:
4.20 divided by 6 will give you 0.7
0.7 times 4 gives you 2.8
6 0
3 years ago
When two computers are working together, they can finish updating software in 9 minutes. How long would they take individually t
tensa zangetsu [6.8K]
First computer takes x min. For 1 min it does 1/x part of work.

Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.

Both computers for one min do   (1/x+1/(x+24)) part of work.

At the same time, both computers for one min do 1/9 part of work.

\frac{1}{x} + \frac{1}{x+24} = \frac{1}{9} &#10;\\ \\  \frac{x+24+x}{x(x+24)} =  \frac{1}{9} &#10;\\ \\9(2x+24)=x^{2} +24x&#10;\\ \\ 18x+216=x^{2} +24x&#10;\\ \\ x^{2}+6x-216=0&#10;\\ \\ D=b^{2}-4ac=36+4*216 = 900&#10;\\ \\ x= \frac{-b+/- \sqrt{D} }{2a}  =  \frac{-6+/-30}{2} &#10;\\ \\ x_{1}=-18, x_{2}=12&#10;&#10;We can use only positive number here. So, &#10;&#10;for the first computer x=12 min,&#10;&#10; for second computer x+24=12+24= 36 min&#10;&#10;Answer 12 min and 36 min.


7 0
3 years ago
Danny has a rectangular rose garden that measures 8m by 12.5m. One bag of fertilizer can cover 16m2 . How many bags will he need
mrs_skeptik [129]

Answer:

we will need 7 bags

Step-by-step explanation:

To solve this problem we first have to calculate the total area of ​​the garden

a = area

b = base = 8m

h = height = 12.5m

a = b * h

we replace with the known values

a = 8m * 12.5m

a = 100m²

Now that we know the total area of ​​the garden and the area occupied by a single bag, we divide the total area by what a bag covers.

100m² / 16m² = 6.25 bags

because we cannot buy a fraction of a bag we will need 7 bags

5 0
3 years ago
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