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Ganezh [65]
2 years ago
5

Mario received $0.40 in change from $20 when he bought trail mix . How many pounds of trail mix did Mario buy ?

Mathematics
1 answer:
polet [3.4K]2 years ago
8 0
I would the $40-$20 and then get my answer it might be wrong so don’t get mad at me
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The polynomial below is a perfect square trinomial of the form A^2 - 2AB + B^2
strojnjashka [21]

Answer:

False

Step-by-step explanation:

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2 years ago
The price of a laptop was marked 80 percent off because it had a cracked screen.
Lelu [443]

Answer:

20%

Step-by-step explanation:

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7 0
3 years ago
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I dont know what I'm doing! could you help me​
photoshop1234 [79]

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

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8 0
3 years ago
Bradley cut a square hole out of a block of wood in wood shop. If the block was cube-shaped with side lengths of 9 inches, and t
MatroZZZ [7]
To solve this problem, you must follow the proccedure below:

 1. T<span>he block was cube-shaped with side lengths of 9 inches and to calculate its volume (V1), you must apply the following formula:

 V1=s</span>³
<span>
 s is the side of the cube (s=9)

 2. Therefore, you have:

 V1=s</span>³
 V1=(9 inches)³
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<span>
 3. The lengths of the sides of the hole is 3 inches. Therefore, you must calculate its volume (V2) by applying the formula for calculate the volume of a rectangular prism:

 V2=LxWxH

 L is the length (L=3 inches).
 W is the width (W=3 inches).
 H is the heigth (H=9 inches).

 4. Therefore, you have:

 V2=(3 inches)(3 inches)(9 inches)
 V2=81 inches
</span><span>
 5. The amount of wood that was left after the hole was cut out, is:
</span>
 Vt=V1-V2
 Vt=648 inches³
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2 years ago
C = 5/9(F - 32) for F
grigory [225]

Answer:

F

Step-by-step explanation:

5 0
2 years ago
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