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diamong [38]
3 years ago
12

An 'A' is considered 4.0, a 'B' is 3.0, a 'C' is 2.0, a 'D' is 1.0, and an 'F' is 0. If you received the following grades in you

r first semester, what would your grade point average be?
Mathematics
1 answer:
Goryan [66]3 years ago
7 0

Answer:

2.2gpa

Step-by-step explanation:

you add the value if the letter grades up and divide by how many classes you have. for this case you have 5 and you would add 4+3+2+1+0=10/5=2.2

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At a schools field day, students will throw table tennis balls then measure the distance. There are 626 students in the school.
qaws [65]

Answer: 105 packs

Step-by-step explanation: The correct answer is 105 packs of table tennis balls. You need a total of 626 balls, so you divide this by 6 because that is what a standard package contains. The formula is 626/6 = 104.3. You will need 104 packs plus .3 of a pack, which means that you need to round it up to 105 packs of table tennis balls.

4 0
3 years ago
The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with me
andrey2020 [161]

Answer:

0.5466

Step-by-step explanation:

Given that the  length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days.

Let X be the length of pregnancies

X is N(266,16)

To find out the probability that pregnancies last between 240 and 270 days (roughly between 8 months and 9 months)

P(240<x<270)

convert each into Z score as z=\frac{x-266}{16}

x=240 means Z = -1.625

x=270 means z=0.25

Required prob

= P(-1.625

5 0
3 years ago
LabTech is a company that manufactures microscopes and other laboratory instruments . On occasion, one of the microscopes is def
Scrat [10]

Answer:

0.0782 (7.82%)

Step-by-step explanation:

The required probability will be found by using the Binomial Distribution which fits the case of n independent events each with a probability of success equal to p with k successes.

The PMF (Probability Mass Function) is

f(k,n,p)=\binom{n}{k}p^kq^{n-k}

Where q = 1-p

LabTech states that the probability that a microscope is defective is 0.17%, p=0.0017, q=0.9983. We need to know the probability that k=1 microscope is defective out of a set of n=50 of them. We now apply the formula

f(1,50,0.0017)=\binom{50}{1}0.0017^10.9983^{49}=0,0782

Which means that there is a 7.82% of probability to get 1 defective microscope out of the first 50

5 0
3 years ago
Write the expression using exponents.<br> 2 × 2 × 2 × 2=
aleksandrvk [35]
Here ya go. I wrote it down because I don’t know how to type exponents on my phone. Hope this helps

3 0
3 years ago
Read 2 more answers
"The product of a number and 7" :
alex41 [277]

Answer: 7n

Step-by-step explanation

a product is the multiplication answer. so a number- n- multiplied by 7 is 7n.

5 0
3 years ago
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