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Karo-lina-s [1.5K]
3 years ago
9

Angle A and Angle B are vertical angles. If Angle A measures 45 degrees,

Mathematics
1 answer:
Over [174]3 years ago
5 0

Answer:

135

Step-by-step explanation:

135+45=180

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In the year 2007, a company made $2.2 million in profit. For each consecutive year
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Answer:

1.7

Step-by-step explanation:

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3 years ago
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370 College freshmen were interviewed. 200 were registered for an Advanced Math class. 270 were registered for an English class
frozen [14]

Answer:

Step-by-step explanation:

To aid in understanding, draw three circles...

100 were registered for both Math and English.

50 were registered for both Sport and English but not Math.

70 were registered for Math, Sport, and English.

From here we will be able to calculate for those that signed up for only English class: Total number of students that signed up for english class

a. none signed up only for Maths (refer to attached document)

b. How many signed up for neither Math nor English meaning they signed up for only sports which is 70 from the venn diagram in the attachment.

c. How many signed up for an English class and at least one other class?

From the venn diagram:

we could have an English class and maths class - 100

we could also have an a English class and sports - 50

Thus total is 150.

d. What is the total fee for all the students enrolled in classes

From the diagram, 120 (english only and sport only) enrolled for only one class = 120 x $100 = $12,000

From the diagram, 180 (english and sport, maths and sport and english and maths) enrolled for two classes = 180 x $150 = $27,000

From the diagram, only 70 enrolled for the three classes = 70 x $200 = $14,000

Total fees = $12,000 + $27,000 + $14,000 = $53,000

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3 years ago
Paul wants to compare whether the prices of tangerines in two supermarkets differ significantly. He has been noting down the dai
masha68 [24]
We use the simple rules of statistics to accept the null hypothesis
68% of the data falls within 1 sd of the mean95% of the data falls within 2 sd of the mean 99% of the data falls within 3 sd of the mean
20 falls between the range of -56 to 56 (from the given 95% c.i.), hence we accept the null hypothesis; else, if the mean falls outside the range, we reject the null hypothesis. 
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3 years ago
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Factorise fully : 6x²-11x-10 ​
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Answer:

After factorization we got,

(6x + 5)(x  - 2)

Step-by-step explanation:

here's the solution: -

=》

6 {x}^{2}  - 7x - 10

=》

6 {x}^{2}  - 12x + 5x - 10

=》

6x(x - 2) + 5(x - 2)

=》

(6x + 5)(x - 2)

7 0
3 years ago
Tess deposited $500 in an account that earns 6% annual simple interest. She leaves the money in the account for 4 years. What wi
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Answer:answer is B

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