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kolbaska11 [484]
3 years ago
11

Which expression is equivalent to 3x+10−x+12 ?

Mathematics
2 answers:
Stells [14]3 years ago
6 0

Answer:

D)---—————------->

2x+22

solong [7]3 years ago
5 0

Answer: The answer is D: 2x+22

Step-by-step explanation:

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Which number is greater 30% or 0.03?
Y_Kistochka [10]
30% because as a decimal it would be written as .30 and that is greater then .03 
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3 years ago
Normal Distribution. Cherry trees in a certain orchard have heights that are normally distributed with mu = 112 inches and sigma
Lubov Fominskaja [6]

Answer:

The probability that a randomly chosen tree is greater than 140 inches is 0.0228.

Step-by-step explanation:

Given : Cherry trees in a certain orchard have heights that are normally distributed with \mu = 112 inches and \sigma = 14 inches.

To find : What is the probability that a randomly chosen tree is greater than 140 inches?

Solution :

Mean - \mu = 112 inches

Standard deviation - \sigma = 14 inches

The z-score formula is given by, Z=\frac{x-\mu}{\sigma}

Now,

P(X>140)=P(\frac{x-\mu}{\sigma}>\frac{140-\mu}{\sigma})

P(X>140)=P(Z>\frac{140-112}{14})

P(X>140)=P(Z>\frac{28}{14})

P(X>140)=P(Z>2)

P(X>140)=1-P(Z

The Z-score value we get is from the Z-table,

P(X>140)=1-0.9772

P(X>140)=0.0228

Therefore, the probability that a randomly chosen tree is greater than 140 inches is 0.0228.

5 0
3 years ago
If 37% of high school students said that the excercise regularly, find the
katrin [286]

Answer: 0.6934%

Step-by-step explanation:

Probability is the branch of mathematics that is concerned with the numerical descriptions of how likely an event will occur or how likely a proposition is true

If 37% of high school students said that the exercise regularly, the

probability that 5 students who are randomly selected will say thay they exercise regularly will be:

= (37/100)^5=0.006934

= 0.6934%

6 0
3 years ago
Which algebraic expression models the given word phrase 10 times the sum of a and b?
Phoenix [80]
In this case, the answer would be 10(a+b).  We are multiplying 10 * a + b.  Hope this helps you and satisfies your query.  Feel free to ask more questions.
8 0
3 years ago
Read 2 more answers
9-5 divided by (8-3) x 2+6
garik1379 [7]

Answer:

8

Step-by-step explanation:

9-5÷(8-3)×2+6

4÷4×2+6

1×8

=8

6 0
3 years ago
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