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4 years ago

Someone help me! ASAP

Mathematics

2 answers:

ICE Princess25 [194]4 years ago

7 0

Answer:

tuesday and friday

Step-by-step explanation:

absolute value is the distance away from zero so basically you ignore negatives and then look at which numbers are the same

Lena [83]4 years ago

3 0

Answer:

Tuesday and Friday

Step-by-step explanation:

I hope this helps you

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Please help. I don’t understand this math problem.

Jobisdone [24]

Answer:

(7) The value of -j is 9.

(8) The value of -(-j) is -9.

(9) The value of (-j)(-j) is 81.

Step-by-step explanation :

Part 7:

Given algebraic expression is:

j = -9

Now we have to determine the value of (-j).

-j = - (-9) = 9

The value of -j is 9.

Part 8:

Given algebraic expression is:

j = -9

Now we have to determine the value of -(-j).

- (-j) = - [-(-9)] = -9

The value of -(-j) is -9.

Part 9:

Given algebraic expression is:

j = -9

Now we have to determine the value of (-j)(-j).

(-j)(-j) = [- (-9)] × [- (-9)] = 9 × 9 = 81

The value of (-j)(-j) is 81.

7 0

3 years ago

B) The angle of depression from an observation tower to boat A is 28 degrees. The angle of depression from the same point of the

xz_007 [3.2K]

Answer:

53 meters

Step-by-step explanation:

The angle between a viewer's horizontal line of sight and the line of sight down towards a particle is called the angle of depression. For example if a viewer is sitting at the top of a tower and looking down on a car, the angle between the viewer's horizontal line of sight and the line of sight to which he looks at the car is the angle of depression.

A sketch of the positions of the boats and the tower has been attached to this response.

As shown,

the distance between the two boats A and B is marked x meters.

the horizontal distance between boat A and the foot of the tower is y meters.

the horizontal distance between boat A and the foot of the tower is x + y meters.

the height of the tower is 60 meters.

the angle of depression of boat A is 28°

the angle of depression of boat B is 45°

To find the value of y, from triangle DBC we use the trigonometric ratio for tangent. i.e

tan 45° = $\frac{60}{y}$

1 = $\frac{60}{y}$

y = 60 meters

To find the value of x, from triangle ABC we use the trigonometric ratio for tangent. i.e

tan 28° = $\frac{60}{x+y}$

Where y = 60 meters

tan 28° = $\frac{60}{x+60}$

0.5317 = $\frac{60}{x+60}$

x + 60 = $\frac{60}{0.5317}$

x + 60 = 112.85

x = 112.85 - 60

x = 52.85 meters

Therefore, boat A is about 53 meters from boat B

3 0

3 years ago

What is the slope of (1,2) and (3,2)

sweet [91]

Answer:

Step-by-step explanation:

(1,2) ; (3,2)

slope = y₂ - y₁ / x₂ - x₁

= ( 2-2 )/( 3 - 1) = 0

So, the line is parallel to x-axis and its slope is 0

4 0

3 years ago

Read 2 more answers

Katya earned $85 for 5 hours of work. Which equation below shows how much money (m) she'll earn for (h) hours of work? * ( pleas

larisa [96]

Answer:

m = 17h

Step-by-step explanation:

85/5 = 17 (she makes $17 per hour)

Therefore:

m = 17h

6 0

3 years ago

Read 2 more answers

If I Row my canoe at 5 mph and I travel upstream at 3 mph, how fast will I be traveling downstream if I am rowing at the same ra

Assoli18 [71]

Is the same as the one you just did.

keep in mind that, going against the current, the current's speed erodes speed from your regular speed, whilst if you're going with the current, the current's speed adds to it.

now, in this case, you row 5mph, going upstream you're only doing 3mph, whatever happened to the other 2mph? well, the current speed eroded them, meaning the speed of the river is 2mph.

now, going downstream with the current, your regular speed is 5mph, and the current is 2mph, since the current adds to yours, then you're going 5 + 2, mph.

5 0

3 years ago