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Kisachek [45]
2 years ago
14

5x + 7 = 42, Is x = 7 the solution for this equation? Justify your answer for it is or it is not

Mathematics
2 answers:
Doss [256]2 years ago
7 0

Answer:

7 is a solution.

Step-by-step explanation:

Step 1: Write equation

5x + 7 = 42

Step 2: Solve for <em>x</em>

  1. Subtract 7 on both sides: 5x = 35
  2. Divide both sides by 5: x =7
tigry1 [53]2 years ago
7 0

Answer:

<h2>x = 7</h2><h2 />

Step-by-step explanation:

5x + 7 = 42

5x = 42 - 7

x = 35 / 5

x = 7

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Bias is the difference between the average prediction of our model and the correct value which we are trying to predict and variance is the variability of model prediction for a given data p[oint or a value which tells us the spread of our data the variance perform very well on training data but has high error rates on test data on the other hand if our model has small training sets then it's going to have smaller variance & & high bias and its contribute more to the overall error than bias. If our model is too simple and has very few parameters then it may have high bias and low variable. As the model go this is conceptually trivial and is much simpler than what people commonly envision when they think of modelling but it helps us to clearly illustrate the difference bewteen bias & variance.

3 0
2 years ago
0.6w = 0.48 how u do this
vovangra [49]

A variable next to any number means to multiply, so we would do the inverse operation -- We would divide 0.48 by 0.6, which is 0.8. Therefore, W=0.48. To check your work, multiply 0.6 by 0.8, and what do you know? It's 0.48! :)
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2 years ago
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Novosadov [1.4K]

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33

Step-by-step explanation:

1254 divided by 38 is 33

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2 years ago
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Two functions are shown in the table below.
SVETLANKA909090 [29]

Answer:

(d)\ x = 4

Step-by-step explanation:

Given

f(x) = -x^2 + 4x + 12

g(x) = x + 8

Required

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This gives:

-x^2 + 4x + 12 = x+8

Collect like terms

-x^2 + 4x -x + 12 -8=0

-x^2 + 3x +4 =0

Expand

-x^2 + 4x - x+4 =0

Factorize

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8 0
3 years ago
Expand and simplify (x+5)(x+6)
seraphim [82]

Answer:

2

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(

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(

+

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{\color{#c92786}{(x+5)(x+6)}}

(x+5)(x+6)

(

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