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Andru [333]
3 years ago
10

It takes about me 25 minutes to make out a test for a mathematics class how long will it take to make out test for all five of m

y classes proportions
Mathematics
2 answers:
ira [324]3 years ago
6 0

Answer:

125 minutes total.

Step-by-step explanation:

You do:

25 times 5

= 125 minutes.

Anettt [7]3 years ago
5 0

Answer:

Step-by-step explanation:

125 minutes.

If you take 25 minutes to make out a test for all 5 classes the equation would be 25 minutes x 5 classes and = 125 minutes.

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Last week Andi had exams in Chemistry and in Spanish. On the chemistry exam, the mean was µ = 30 with σ = 5, and Andi had a scor
ValentinkaMS [17]

Answer:

Chemistry

Step-by-step explanation:

To solve the above question, we use the z score formula

Andy took two Exams, Chemistry and Spanish. So we find the z score for both exams.

a) Chemistry Exam

On the chemistry exam, the mean was µ = 30 with σ = 5, and Andi had a score of X = 45

z-score is given as: z = (x-μ)/σ

where x is the raw score,

μ is the population mean

σ is the population standard deviation

z = (x-μ)/σ

z = (45 - 30)/5

z = 15/5

z = 3

b) On the Spanish exam, the mean was µ = 60 with σ = 6 and Andi had a score of X = 65.

z-score is given as: z = (x-μ)/σ

where x is the raw score,

μ is the population mean

σ is the population standard deviation

z = (x-μ)/σ

z = (65 - 60)/6

z = 5/6

z = 0.8333333333

Comparing the z score of both Exams,

Andy had a z score of 3 in the Chemistry exam and 0.8333333333 in the Spanish exam.

Therefore, Andy should be expecting a better grade in the Chemistry exam because his z score in the Chemistry exam was higher than that of the Spanish exam.

7 0
2 years ago
Just making sure, but is the answer G?
wel

Answer:

G is the correct answer! :)

Step-by-step explanation:

Hope this helps! If it does, please mark me brainliest because it will help me. Thank you so much! ;) :)

3 0
3 years ago
Read 2 more answers
Please answer the following its urgent 2 and 3
astraxan [27]

Answer:

im sorry but i had a similar question and im also struggling ;(

Step-by-step explanation:

5 0
2 years ago
Find the real zeros x4-11x2+18=0
masya89 [10]

Answer:

x=√2, x=-√2, x= 3 and x=-3

Step-by-step explanation:

We need to solve the equation x^4 - 11x^2+18=0

We can replace x^4 = u^2 and x^2 = u

So, the equation will become

u^2 -11u+18 = 0

Factorizing the above equation:

u^2 -9u-2u+18 =0

u(u-9)-2(u-9)=0

(u-2)(u-9)=0

u=2, u=9

As, u = x^2, Putting back the value:

x^2 =2 , x^2 =9

taking square roots:

√x^2 =√2 ,√x^2=√9

x=±√2 , x = ±3

so, x=√2, x=-√2, x= 3 and x=-3

6 0
2 years ago
Please help! you will get 10 points and multiple choice.
mamaluj [8]

Answer:

Corresponding angles

Step-by-step explanation:

A corresponding angles is, and I quote, "the angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal." (See image below)

So, looking at our words and graph, 5 and 1 are corresponding angles!

Hope this helped!

Source(s) used: G*ogle

4 0
2 years ago
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