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telo118 [61]
3 years ago
8

Which of the following polynomials is in standard form?

Mathematics
2 answers:
MArishka [77]3 years ago
8 0
X+2 if u need the concept go on khan academy and check it out :}
NNADVOKAT [17]3 years ago
4 0

Answer:

A

B

C

Step-by-step explanation:

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Please solve this, 50 points and BRAINLIEST<br> -4•6/7•-5/3
AleksandrR [38]

Answer:

5 5/7

Step-by-step explanation:

-4•6/7•-5/3

Put the numbers as fractions

-4/1•6/7•-5/3

Rewriting

-4/1 * 6/3 * -5/7

Simplifying the middle fraction

-4/1 * 2/1 * -5/7

Multiply the first two terms

-8/1 * -5/7

Multiplying

40/7

Changing from an improper fraction to a mixed number

7 goes into 40 5 times with 5 left over

5 5/7

4 0
2 years ago
Read 2 more answers
The time (X) to complete a standardized exam is approximately normal with a mean of 70 minutes and standard deviation of 10 minu
notka56 [123]

Answer:

77.88 minutes

Step-by-step explanation:

Given that :

Mean (m) = 70

Standard deviation (s) = 10

For 80% of student to complete the exam. In the given time

Using the formula :

Zscore = (X - mean) / standard deviation

80th percentile = 80/100 = 0.8 has a Zscore = 0.7881

0.7881 = (X - 70) /10

0.7881 * 10 = X - 70

7.881 = X - 70

7.881 + 70 = X

77.881 = X

Hence, 77.88 minutes should be given

5 0
3 years ago
Find two consecutive odd integers such that seven times the first equals five times the second.
fredd [130]

Answer:

Odd integers are always one more that an even integer:

1st: 2n+1

2nd: 2n+3

Step-by-step explanation:

14n+7 = 10n+15

4n = 8

n = 2

------------

1st: 2n+1 = 5

2nd: 2n+3 = 7

7x=5*(x+2)

7x=5x+10

7x-5x=10

2x=10

x=5

8 0
3 years ago
You want to invest in companies belonging to Gispa Group of
marysya [2.9K]

Answer:

0.1007

Step-by-step explanation:

Given :

Average gain, μ = 0.8

Standard deviation, σ = 0.7

Number of companies, n = 20

Obtaining the standardized value ;

Zscore = (x - mean) / (σ/√n)

Zscore = (1 - 0.8) / (0.7/√20)

Zscore = (0.2 / 0.1565247)

Z = 1.27775

Using the Z probability calculator :

P(Z > 1.27775) = 0.10067

P(Z > 1.27775) = 0.1007 ( Z probability calculator)

8 0
2 years ago
Please show me the work thank you
KiRa [710]
Answer: B. x < 25

Remember: when multiplying or dividing negatives, flip the inequality sign.

3(x + 3) > 4(x - 4)                 Distributive Property
3x + 9 > 4x - 16                   Subtract 4x from both sides
-x + 9 > -16                          Subtract 9 from both sides
-x > -25                               Divide by -1 to both sides and flip the sign
x < 25                                 Answer!
 
6 0
3 years ago
Read 2 more answers
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