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Fed [463]
2 years ago
9

I NEED HELP, PLEASE!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
katrin [286]2 years ago
5 0

Answer:

-1.75 and 1.75.

Step-by-step explanation:

Absolute value is the value of a number, disregarding its sign. Absolute value will always be written as positive.

Examples:

The absolute value of 5 is 5.

The absolute value of -9836 is 9836. Not -9836, because absolute value will always be positive.

The absolute value of -2 is 2.

The absolute value of 87 is 87.

And, thus, the absolute value of -1.75 is 1.75, and so is the absolute value of 1.75. -1.75 will be in between -2 and -1.5. 1.75 will be in between 1.5 and 2.

umka2103 [35]2 years ago
4 0

1.75 itself and -1.75

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(Right angle) Trigonometry <br> please help!
kozerog [31]

Answer:

A = 41.4°

Step-by-step explanation:

Reference angle = A

Length of Adjacent side = 6

Length of Hypotenuse = 8

Apply the trigonometric function, CAH.

Cos A = Adj/Hyp

Substitute

Cos(A) = \frac{6}{8}

A = Cos^{-1}(\frac{6}{8})

A = 41.4° (approximated to the nearest tenth)

7 0
3 years ago
The total bill for drinks and a pizza for three people is $14.90 before tax. The group wants to leave a 15% tip on the cost of t
andreyandreev [35.5K]

Answer:

$2.24

Step-by-step explanation:

Since we are trying to find a percentage of something, we can multiply whatever we're trying to find a percentage from by 0.X where X is equal to the number of the percentage. So in this case it's 15%. We can multiply $14.90 by 0.15 and we get 2.23500. Since we cannot have 2.235 dollars, we must round up decimal places.

The tip would be 2 dollars and 24 cents. ($2.24).

5 0
3 years ago
A square pyramid has sides of 8 m. Each face is an equilateral triangle.
Annette [7]

Lateral Area means Area of all four triangles

Now area of 1 triangle = \frac{\sqrt{3}}{4} a^2  =  \frac{\sqrt{3}}{4} 8^2

= \frac{\sqrt{3}}{4} * 64 = 16\sqrt{3} square meters

Now for four triangles we multiply by 4

So

Lateral area of pyramid =4* 16\sqrt{3} = 64\sqrt{3} m^2

that is Option D

3 0
3 years ago
(5x - 7y + 8) + (-y + 6 - 4x) + (9 - 3x + 8y)
Mashutka [201]
The answer is -2x+ 23
8 0
3 years ago
Simplify 2.5 (16/2-2.3) - 2
dsp73

Answer:

it's just ( -3.3 )but I need to put 20 + words and stuff so read this if you would like

7 0
2 years ago
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