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serg [7]
2 years ago
10

Evaluate. 2 • {[5 • (60 – 14 ÷ 7)] + 25} • 5

Mathematics
1 answer:
Mrac [35]2 years ago
6 0
The answer is 3150 :)
BODMAS
brackets, division, multiplication, addition, subtraction
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the equation p = 2 (l + w) can be used to find the perimeter p of a rectangle with length l and width w solve the equation for w
Artemon [7]
The formula for w
P= 2L + 2W
W= (P -2L ) / 2
3 0
3 years ago
A side of an equilateral triangle is 2/8 cm long. Draw a picture that shows the triangle
lianna [129]
Here you go. I hope this will help

7 0
3 years ago
With reference to the figure, sin X equals?<br> 1.) 0.250<br> 2.)0.447<br> 3.)0.894<br> 4.)1
Flura [38]

Answer:

3.) 0.894

Step-by-step explanation:

✔️First, find BD using Pythagorean Theorem:

BD² = BC² - DC²

BC = 17.89

DC = 16

Plug in the values

BD² = 17.89² - 16²

BD² = 64.0521

BD = √64.0521

BD = 8.0 (nearest tenth)

✔️Next, find AD using the right triangle altitude theorem:

BD = √(AD*DC)

Plug in the values into the equation

8 = √(AD*16)

Square both sides

8² = AD*16

64 = AD*16

Divide both sides by 16

4 = AD

AD = 4

✔️Find AB using Pythagorean Theorem:

AB = √(BD² + AD²)

AB = √(8² + 4²)

AB = √(64 + 16)

AB = √(80)

AB = 8.9 (nearest tenth)

✔️Find sin x using trigonometric ratio formula:

Reference angle = x

Opposite side = BD = 8

Hypotenuse = AB = 8.944

Thus:

sin(x) = \frac{opp}{hyp} = \frac{8}{8.944} = 0.894 (nearest thousandth)

6 0
3 years ago
I need the answer please I don't know it
Vlad1618 [11]
Basically the question is asking you for the area of the triangle.
The formula to find the area of a triangle is base x height divided by 2.
So in this case you would do 27 x 15.5 = 418.5
Now you divide by 2 (209.25)
So the answer is D. Hope this helps!!
6 0
3 years ago
The graph below represents which system of inequalities?<br>​
Sav [38]

Answer:

the second one pretty sure

8 0
3 years ago
Read 2 more answers
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