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lianna [129]
2 years ago
6

Identify and EXPLAIN the ERROR

Mathematics
1 answer:
AveGali [126]2 years ago
8 0

Answer:

Error: Sariah treated every term as though it were an x-term. 5 and -4.5 are constants that cannot be combined with the x-terms. They can only be combined with each other.

Correct solution: 31x + 0.5

Strategy: Pay attention to the variables.

Step-by-step explanation:

In her first step, it appears Sariah added 13x and 5 to get 18x. These terms are not <em>like terms</em>, so cannot be added in this way. An appropriate strategy is to first identify all the terms with the same <em>variables</em> (x in this case), then add their <em>coefficients</em>.

... = x(13 +17 +1) +5 -4.5

Likewise, all the <em>constant</em> terms can be added.

... = 31x +(5 -4.5)

... = 31x + 0.5

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For which rational expression is -5 an excluded value of x?
spayn [35]

Ration expressions cause excluded values wherever the denominator equals zero.

So, for any expression like

h(x)=\dfrac{f(x)}{g(x)}

-5 is an excluded value if g(-5)=0

For example, the simplest one would be

h(x) = \dfrac{1}{x+5}

In fact, if you try to evaluate this function at -5, you'd have

h(-5)=\dfrac{1}{5+5}=\dfrac{1}{0}

which is undefined, and thus you can't evaluate the function, and thus -5 is an excluded value.

7 0
3 years ago
Read 2 more answers
Find the average.
fomenos

Answer:

my answer is b) 0

Step-by-step explanation:

coz

-3+4+2+1+-4+-1+3+-2=0

divided by 8 is 0

4 0
3 years ago
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Adrian knows that the quotient of 0.75 divided by 0.8 is less than 1. He knows that the quotient of 0.8 divided by 0.75 is great
MrRa [10]
Hey There!

Adrian knows this because whenever you divide something less than the number you are dividing, in this case, then the quotient will be less than one. If you divide something that is greater than the number you are dividing, than in this case, the answer will be greater than one.

Have A Brainly Day!
7 0
3 years ago
PLEASE HELP ME!! I AM TAKING A TEST AND I NEED TO KNOW THE ANSWER!!!! GIVING BRAINLIEST
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Answer:

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Step-by-step explanation:

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3 years ago
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Please help I'm very confused on this!!
Effectus [21]

Step-by-step explanation:

The formula for compound interest is

P = I (1 + r/n)^nt

where

P: the total amount of money in the account after a certain amount of time

I: the principal amount

r: the interest rate as a decimal

n: the number of times a year interest is compounded

t: the number of years passed

For Patrick:

P = 200 (1 + 0.02/12)^12*8

P = 200 (1 + 0.00166667)^96

P = 200 (1.00166667)^96

P = 200 * 1.00166667^96

P = $234.67

For Brooklyn:

P = 200 (1 + 0.04/4)^4*8

P = 200 (1 + 0.01)^32

P = 200 (1.01)^32

P = 200 * 1.01^32

P = $274.99

After 8 years, Patrick has $234.67 and Brooklyn has $274.99

7 0
2 years ago
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