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Deffense [45]
2 years ago
7

Amy and Darren each solved the following system of equations using a different method

Mathematics
1 answer:
kakasveta [241]2 years ago
8 0

Answer:

what is

Step-by-step explanation:

the the 3 4 4

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Your parents gave you a gift card for your favorite coffee shop. The card was worth $50 when you got it. Each day, you buy a dri
Sever21 [200]

50=3x+b. you never specify the variable that replaces b

7 0
3 years ago
Vending machines can be adjusted to reject coins above and below certain weights. The weights of legal U.S. quarters have a norm
tigry1 [53]

Answer: The percentage of legal quarters will be rejected by the vending machine = 2.275%

Step-by-step explanation:

Given: The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram.

Let x be the weights of legal U.S. quarters .

Required probability: P(x5.81)

=P(\dfrac{x-\mu}{\sigma}\dfrac{5.81-5.67}{0.07})\\\\=P(z2)\approx0.02275    \ \ \ [By\  P-value\ calculator]

The percentage of legal quarters will be rejected by the vending machine = 2.275%

5 0
2 years ago
Plz help if you can<br> Thank ya
koban [17]

Answer:

90\pi

Step-by-step explanation:

The first step is to find the slant height of the cone. Using the pythagorean theorem, you can find that \sqrt{12^2+5^2}=13 cm. Plugging this into the equation, you get \pi \cdot 5 \cdot 13=90\pi. Hope this helps!

3 0
2 years ago
PLEASE HELP.I will give you the brainiest quickly
kotegsom [21]

Answer:

It's B :)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me plz i have 3 question 30 points
Vlad1618 [11]
Here're the answers!!! Good luck!!
1) a = -7 (The first picture -Left to right)
2) x = -39
3) a = -2.1 (The last picture left to right)


Hoping this helped you out!! If my answer best helped you, please mark Brainliest! ;)

3 0
3 years ago
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