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slamgirl [31]
3 years ago
13

Evaluate 2x - y + 4z, if x = 1, y = 2 and z = -1

Mathematics
1 answer:
lidiya [134]3 years ago
5 0

2 x 1 - 2 + 4 x -1 =

the answer is -4.

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Ax=bx+1 how is the value of x related to the difference of a and b
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We have ax - bx = 1;
Then (a - b)x = 1;
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A beaker contains 0.5 liter of solution.Jordan uses 0.08 of the solution for an experiment.How much of the solution does Jordan
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I feel like this is a trick question

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Which of these is a simplified form of the equation 8y + 4 = 6 + 2y + 1y?
Gelneren [198K]

Answer:

5y=2

Step-by-step explanation:

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8y+4 = 6+3y

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6 0
4 years ago
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Jordan used the distributive property to write an expression that is equivalent to 6c – 48.
Marysya12 [62]

Answer:

No, Jordan forgot to divide 48 by 6.

Step-by-step explanation:

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8 0
3 years ago
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Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. Th
Alisiya [41]

Answer:

s ≈ 105

Step-by-step explanation:

<u>Given:</u>

  • The data set: 700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750

<u>To find:</u>

  • The standard deviation of the data

<u>Steps:</u>

To find the standard deviation, first write the computational formula for the standard deviation of the sample.

{s}= \sqrt{\frac{{\sum}{x^2} - \frac{({\sum}{x})^2}{n}}{n - 1}}

Take the square root of the answer found in step 7 above. This number is the standard deviation of the sample. It is symbolized by s . Here, we round the standard deviation to the nearest whole number.

{s} = \sqrt{10987.878787879} = 104.8231

Rounding to the nearest whole number:

s ≈ 105

6 0
2 years ago
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