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Julli [10]
3 years ago
7

How many pairs of complementary angles would it take to create a straight line? How do you know?

Mathematics
2 answers:
qwelly [4]3 years ago
5 0
It would take 2 pairs of complementary angles because complementary angles have 90 degrees and 180 degrees makes a straight line
bija089 [108]3 years ago
5 0
It would take 2 pairs and complementary is 90 degrees and a straight line makes 180 degrees
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This is my last question i swear pls help
Vedmedyk [2.9K]

Answer:

To find a

sin 30=a/6in

1/2=a/6in

2a=6in

a=6in/2

a=3in

To find b

cos 30=b/6in

/3/2=b/6in

2b=/3*6in

b=2/3(two radical three)

I don't get the radical sign so I use / sign on the last 3 steps on the second

8 0
2 years ago
Read 2 more answers
Food bill:$55 sales tax:8 tip:10%
Romashka [77]

Answer:

$65.34

Step-by-step explanation:

Multiply $55 by 0.08. Then multiply $55 by 0.1. Then add the two.

4 0
3 years ago
Which 3 consecutive numbers add up to 72
AnnZ [28]
You need to write this question out in algebra form first. X + x + 1 + x + 2 = 72 than you add the like terms
3x + 3 = 72 ... 3x=69 ... x=69/3 ... x=23. So we have now found x now you just add 1 to x and get 24 and you add 2 to x you will get 25.

Add 23 + 24 + 25 together you will get 72
5 0
4 years ago
HELP ME SOLVE THIS PLS!!!!!! I WILL AWARD BRAINLIEST FOR THE FIRST CORRECT ANSWER WITH EXPLANATION!!!!!!!!!!!!!
evablogger [386]

Step-by-step explanation:

I think AL 76 my bad if it wrong

8 0
3 years ago
The endpoints of sa020-1.jpg are A(9, 4) and B(5, – 4). The endpoints of its image after a dilation are sa020-2.jpg and sa020-3.
Oksanka [162]
Answer:
The scale factor is (√10) / (4)

Explanation:
The complete question as well as the rule for the distance between two points are shown in the attached image.

To get the scale factor, we will follow these steps:
1- Length of AB:
AB = √(5-9)²+(-4-4)² 
AB = √80
AB = 4√5 units

2- Length of A'B':
A'B' = √(5-6)²+(-4-3)²
A'B' = √50
A'B' = 5√2

3- getting the scale factor:
A'B' = k AB where k is the scale factor
5√2 = k * 4√5
k = (√10) / (4)

Hope this helps :)


5 0
3 years ago
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