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lisov135 [29]
3 years ago
8

Please help me with these questions I don't understand

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0
7) 44
if you add up the sides 10+9+9(the bottom side)+7+5+4=44
8) 6
the sides of the triangle are 3,4,5.
4 and 5 are shown. the  three is because you subtract 7 from 10 (the length of the side) and you get three.
then take the two sides (not the hypotenuse) and multiply them by each other. that leaves you with the area of a rectangle, so devide that number in half.
i hope this was clear and helpful!!

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A store uses the expression –2p + 50 to model the number of backpacks it sells per day, where the price, p, can be anywhere from
Rus_ich [418]
Revenue = price * number of backpacks
number of backpacks = -2p + 50

p = 9 ; -2(9) + 50 = -18 + 50 = 32
revenue = 9 * 32 = 288

p = 12 ; -2(12) + 50 = -24 + 50 = 26
revenue = 12 * 26 = 312

<u>p = 12.50 ; -2(12.50) + 50 = -25 + 50 = 25</u>
<u>revenue = 12.50 * 25 = 312.50</u>   GIVES THE MAXIMUM REVENUE

p = 15 ; -2(15) + 50 = -30 + 50 = 20
revenue = 15 * 20 = 300
8 0
3 years ago
Read 2 more answers
I need help with this I need shown work too it won’t count if I am not showing my work
iogann1982 [59]
The answer is 7x + 3

First, you have 3x-1 + 2x+1
Combine like terms and the 1’s cancel each other out. You are left with 5x.

Then, you add x+2 + x+1
Combine like terms and you have 2x+3

Add 5x + 2x+3 and you have 7x +3

I’m bad at explaining, so here are the steps.

7 0
3 years ago
There are 1,099 souvenir paperweights that need to be packed in boxes. Each box will hold 11 paperweights. How many boxes will b
sergeinik [125]

Answer:

1099/11=99.9

since you can't have 99 boxes, you round to 100 boxes.

you will need 100 boxes.

8 0
2 years ago
M ∠E = 60° and m ∠G = 85° what is m ∠L?<br><br> A: 180°<br> B: 45°<br> C: 35°<br> D: 85°
Viefleur [7K]

Answer:

The answer is C: 35°

Step-by-step explanation:

The sum of all angles in a triangle is 180°

So, 180°-(60°+85°)

= 180°-145°

= 35°

m∠L = 35°


Hope it helps!

7 0
2 years ago
which of the following triangle classification is defined by an angle that is created by two perpendicular lines?
GenaCL600 [577]

Answer:

Right Triangle

Step-by-step explanation:

An angle created by two perpendicular lines is a right angle, and a triangle with a right angle is a right triangle.

5 0
3 years ago
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