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Arlecino [84]
3 years ago
6

What is the reference angle for ø= -135 ?

Mathematics
1 answer:
____ [38]3 years ago
7 0

Answer:

45°

Step-by-step explanation:

add 180

reference angle=-135+180=45°

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A class of 25 students was asked what their favorite season was. 12 students said
dlinn [17]

Answer:

2 students said only fall

Step-by-step explanation:

Given:

Total number of students = 25

Number of students who like fall season (F) = 12

Number of students who like summer season (S) = 18

Number of students who like both fall and summer season \left ( F\cap S \right ) = 10

To find:

Number of students who like only fall season

Solution:

A set is a well defined collection of objects. A universal set is the set of which all other sets are subsets. It is denoted by U.

According to the venn diagram,

n(only F) = =n(F)-n\left ( F\cap S \right )

=12-10=2

So, 2 students said only fall.

Download pptx
3 0
3 years ago
you have $60 and your sister has $120. You are saving $7 per week and your sister is saving $5 per week. How long wil it be befo
lora16 [44]

Answer:30 weeks

Step-by-step explanation:

60+7w=120+5w

2w=60w=30

6 0
3 years ago
Consider the function y 2x+3. which is true
Bess [88]

Answer:

True

Step-by-step explanation:

if you really think about it you can use y for anything an dy is the most replaceable to have so i agree with your think hope it help man

6 0
3 years ago
Read 2 more answers
A boat goes 32 miles downstream in two hours. The return trip againts the current takes sixteen hours. Find the rate of the boat
zepelin [54]

Answer: the rate of the boat in calm water is 9 mph and the rate of the current is 7 mph

Step-by-step explanation:

Let x represent the rate of the boat in calm water.

Let y represent the rate of the current.

A boat goes 32 miles downstream in two hours. Assuming that it travelled in the direction of the current, its total speed would be

x + y mph

Distance = speed × time

Distance covered downstream is

32 = 2(x + y)

16 = x + y - - - - - - - - - - - -1

The return trip against the current takes sixteen hours.

Its total speed would be x - y mph

Distance = speed × time

Distance covered on return trip is

32 = 16(x - y)

2 = x - y - - - - - - - - - - - -2

Adding equation 1 and equation 2, it becomes

18 = 2x

x = 18/2 = 9 mph

Substituting x = 9 into equation 1, it becomes

16 = 9 + y

y = 16 - 9 = 7 mph

3 0
3 years ago
Factor the linear expression 15x – 10 using the greatest common factor of the terms.
Citrus2011 [14]

Answer:

The answer is D.

Step-by-step explanation:

hope that helps

Solutions:

A. 5(3x + 2)

= 15x+10

B. 5(3x – 10)

= 15x-50

C. 15(x – 2)

= 15x-30

D. 5(3x – 2)

=15x-10

4 0
3 years ago
Read 2 more answers
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