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Harlamova29_29 [7]
3 years ago
8

Combine like terms to determine which expression with 2 terms is equivalent to 5x + 16y + 8x + 2y.

Mathematics
1 answer:
Strike441 [17]3 years ago
5 0

Answer:

you look for the same variables with the same powers

y: 16y +8y = 24y

x: 8x - 7x = x

y^2: 2y^2

and sum it all together at the end

Step-by-step explanation:

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Which expression is equivalent to 3(8 + 7)?
natima [27]
Here we MUST follow Order of Operations rules.
Must start out by doing the work inside the parentheses:  (8+7) = 15
Next, multiply this result by 3:  3(15)=45 (answer)

You will have to work out the given versions of this problem until you find one that is also equal to 45.
4 0
4 years ago
How do u find the scientific notation for this problem
dedylja [7]
You put both parentheses in standard form, then divide as if it were a normal problem. Once the quotient is found, move the decimal point to the right. Every time you move one space to the left, increase the exponent by one but also divide your quotient by 10
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5 0
3 years ago
A company has 2 machines that manufacture widgets. An older machine manufactures 25% defective widgets, while the new machine ma
Bingel [31]

Answer:

73.90%

Step-by-step explanation:

Let Event D=Defective,  D' = Non Defective

Let Event N=New Machine, N' = Old Machine

From the given information:

P(D|N')=0.25\\P(D|N)=0.09\\P(N)=0.7\\P(N')=0.3

We are required to calculate the probability that a widget was manufactured by the new machine given that it is non defective.  

i.e. P(N|D')

P(D'|N')=1-P(D|N')=1-0.25=0.75\\P(D'|N)=1-P(D|N)=1-0.09=0.91

Using Baye's Law of conditional Probability

P(N|D')=\dfrac{P(D'|N)P(N)}{P(D'|N)P(N)+P(D'|N')P(N')} \\=\dfrac{0.91*0.7}{0.91*0.7+0.75*0.3}\\ =0.73897\\\approx 0.7390

Therefore given that a selected widget is non-defective, the probability that it was manufactured by the new machine is 73.9%.

5 0
3 years ago
420 hg = _____ cg<br> please help me
Reika [66]

Answer:

420 hg = __4200000___ cg

Step-by-step explanation:

<h2>please mark me brainliest</h2>
8 0
3 years ago
45% into a fraction simplest form
Aliun [14]
9/20

45% is 0.45. To switch into a fraction you do 45 over 100, simplified is 9/20.
5 0
3 years ago
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