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3 years ago

Can someone help explain this problem

Mathematics

1 answer:

pogonyaev3 years ago

4 0

Answer:

HK=66°

Step-by-step explanation:

Based on the diagram, we know the two sides of the arcs are equal. So we set up an equation that solves for x, then plug it back into one of the sides, and double it.

x+20=6x-45

65=5x

x=13

x+20=33

33x2=66

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The lighthouse keeper that is at the top of a lighthouse that

Amiraneli [1.4K]

Step-by-step explanation:

Let θ be the angle of depression i.e the angle between the horizontal and the observer's line of sight.

tanθ= (Height of the light house)/(Horizontal distance of ship from the base of light house)

∴tanθ=88/1532=0.0574

∴θ=tan−1(0.0574)=3.290(2dp)

7 0

3 years ago

Amanda bought 6 pairs of jeans for $135.48. How much would she need to pay for 9 pairs of jeans?

yaroslaw [1]

Answer:

$203.22

Step-by-step explanation:

Find out how much each pair of jeans cost:

$\frac{price}{pairs} =\frac{135.48}{6} =\frac{135.48/6}{6/6}= 22.58$

Each pair of jeans cost $22.58.

Multiply the unit price by 9 to get the total price for 9 jeans:

$22.58*9=203.22$

Amanda should be paying $203.22 for 9 pairs of jeans.

6 0

3 years ago

Read 2 more answers

Math help!!!!!!!!!!!!!!

Paha777 [63]

The answer is the 5th one

40,059 ; 40,095 ; 40.509 ; and 40,905

7 0

3 years ago

Read 2 more answers

In 1960, the average cost of a gallon of milk was $0.49. In 1985, the average cost of a gallon of milk was $2.26. Which of the f

solmaris [256]

Answer:

Step-by-step explanation:

$ 2.26- $0.49

=$1.77 increase from 1960 to 1985

5 0

3 years ago

Please quick responses!!

mamaluj [8]

Answer:

6 7/8 inches

Step-by-step explanation:

The first thing to do is to get the measurements in either inches or feet. You can't have both. Let's go from feet to inches.

3 feet = 36 inches

13.75 feet = 165 inches

Now we can set up a proportion to solve for the number of inches the model is:

$\frac{model}{real}:\frac{1.5}{36} =\frac{x}{165}$

Now we can cross multiply:

36x = 247.5 so

x = 6.875 or 6 7/8 inches

4 0

3 years ago