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gayaneshka [121]
3 years ago
14

Molly and Nancy disagree about the value of the expression 2+3×4. Molly thinks it is 20 and Nancy thinks it is 14.how could

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0
Molly- 2+3 equals 5 then she times that by 4 which gets 20 but Nancy used PEMDAS and did 4x3 then added 2 which gets 14. Nancy is correct
kvasek [131]3 years ago
4 0
Molly : she calculated 2 + 3 x 4.....and she got 20......so she basically added 2 + 3 (which equals 5), then multiplied by 4...giving her 20.

Nancy : she calculated 2 + 3 x 4...and she got 14...so she basically multiplied the 3 x 4 (which is 12) and added the 2.

Nancy is correct because in PEMDAS (the order of operations) multiplication comes before addition
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If the textbook weight 19.6 newtons on venus, what is the strenght of gravity on that planet?
victus00 [196]

Answer:

8.91m/s²

Step-by-step explanation:

If you were referring to the question :

If a 2.2 kg textbook weighs 19.6 newtons on Venus, what is the strength of gravity on that planet then read on.

Weight is the force of gravity on an object and it can be computed using the formula:

W = mg

where:

W = weight (N)

m = mass (kg)

g = acceleration due to gravity

So we know the weight and the mass of the object, all we do is plug it into our formula and solve for what we do not know.

W = mg\\\\19.6N = (2.2kg)(g)\\\\ \dfrac{16.6N}{2.2kg} = g\\\\8.91m/s^{2} = g

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3 years ago
100 POINTS ANSWER FAST
DedPeter [7]
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4 0
3 years ago
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The roots of the equation 2x^2+3x-5=0 are
GaryK [48]
I know it is -1 cause of the root of equation 

7 0
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10% of £22 <br><br> 5% of £22 <br><br> 15% of £22<br><br> —————-<br> please help!
dybincka [34]

Step-by-step explanation:

10% of £22

10/100×22/1

2.2%

5% of £22

5/100×22/1

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A movie theature offers two containers. One container is a traiangular prism with a base area of 12cm and 19 cm of height, for $
KATRIN_1 [288]

Answer:

rectangular container

Step-by-step explanation:

Triangular prism area: A = 1/3 * base area * height

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Rectangular prism: A = base area * height

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The rectangular container has a better value because it has a bigger area and is cheaper.

Hope this helps!

3 0
3 years ago
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