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Stella [2.4K]
2 years ago
13

8

Mathematics
1 answer:
Nata [24]2 years ago
6 0

Answer: 15, -8

Step-by-step explanation:

u_2=7\\u_2=u_1+r\\u_3=u_1+2r\\u_4=u_1+3r\\\\u_1+u_2+u_3+u_4=4u_1+6r=12\\u_1+r=7\\\\

\left \{ \begin {array} {ccc|c|c}u_1+r&=&7&-4&-6\\4u_1+6r&=&12&1&1\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}2r&=&-16\\-2u_1&=&-30\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}r&=&-8\\u_1&=&15\\\end {array} \right.\\\\\\Proof:\\u_1=15\\u_2=7\\u_3=-1\\u_4=-9\\sum=12\\

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Goshia [24]

Answer:

P(Cheese) = 0.30

Step-by-step explanation:

Given

Cheese = 36

Pepperoni = 64

Veggie = 20

Required

P(Cheese)

This is calculated as:

P(Cheese) = \frac{Cheese}{Total}

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7 0
2 years ago
60% of a number is 54. what is 50% of the same ?
tangare [24]

Answer:

The answer is 45.

Step-by-step explanation:

60% of a number is 54, find the original number

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50% of 90 is

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= 90 * 1/2

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3 0
2 years ago
Multiple choice please answer please
tankabanditka [31]

Answer:

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Step-by-step explanation:

\because \cos \angle B = \bigg(\frac{4}{5}\bigg)\\\\\therefore  \angle B =cos^{-1} \bigg(\frac{4}{5}\bigg)\\

3 0
3 years ago
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lilavasa [31]
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Therefore the correct answer is A. 
3 0
3 years ago
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babunello [35]

Answer:

6

Step-by-step explanation:

I assume you mean GCF, greatest common factor.

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The greatest common factor is 6.

6 0
3 years ago
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