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Svetach [21]
2 years ago
15

NEED HELP BEING TIMED !!! Which is the value of this expression when

Mathematics
2 answers:
Kruka [31]2 years ago
7 0
The answer is 4
I used the Safari calculator, so I really hope this is right. Best of luck to you
Makovka662 [10]2 years ago
5 0
4 I think or -4 so yea if it's not them I really don't know
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Jackson is buying a new TV for $650. He will also be
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Answer:

his total bill would be 698.75

Step-by-step explanation

you only did half of the problem lol.

48.75 is just the sales tax. to get the total bill, you need to add 650 to 48.75 because 650 is the actual price of the TV

hope this helps :)

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3 years ago
If the distance from the boat to the lighthouse is 120 meters and the angle of elevation is 40°, which of the following equation
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You can use the fact that lighthouses are usually standing perpendicular to the ground that smaller distance on earth surface(planes or water bodies like sea or ocean or calm river) acts as if they a straight plane.

The length (y) of the lighthouse is given by:

Option D:  tan 40° = y over 120.

<h3>What is angle of elevation?</h3>

What you see something higher than your eye level height, you need to see up, you elevate your head to see that thing. The angle from the straight horizontal level of eye to the current elevated level is measured and named as angle of elevation.

Similarly, there is angle of depression when the observer looks down.

<h3>How to calculate the height of the considered lighthouse?</h3>

See the figure attached below to understand the symbols used in calculations.

Let the boat is on point C, and let the light house be AB.

Then we have:

Length of CA = 120 meters

∠ ACB = 40°

To find: length of AB

By using the trigonometric ratio tangent, we get:

tan(\angle ACB) = \dfrac{AB}{AC}\\\\tan(40^\circ) = \dfrac{h}{120}

Since here h is denoted by y, we have h = y, or

The equation to find the height of the lighthouse is

tan(40^\circ) = \dfrac{y}{120}

Thus,

The length (y) of the lighthouse is given by:

Option D:  tan 40° = y over 120.

Learn more about angle of elevation here:

brainly.com/question/12483071

8 0
2 years ago
Aunt sally is making cookies for a bake sale. She can bake 120 cookies every hour. Use this information to fill out the mapping
defon

Answer:

Step-by-step explanation: okay each hour she makes 120 cookies right then 2 hours would be 240 and three hours would be 360 and 4 would be 480 and 5 would be 600 hundred

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1. Jack and Jill both begin working new jobs for the summer. Jack is offered $18 per hour and will also be given $699 up front f
Nadya [2.5K]

Answer:

BRuh

Step-by-step explanation:

Girl my math skills are no where near subpar to that. Good luck!

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