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3 years ago

What is the reference angle for 225° and what is a reference angle?

1 answer:

6 0

<span> the angle that the Main Angle is called reference angle
</span><span>Given angle - 180
</span><span> 225° -180
</span>=45
eference angle for 225° is 45

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H=-5 and w=2, work out the value of 4h-3w

olganol [36]

You would simply have to plug in, or substitute, the given values in the equations.

So, H=-5, W=2 and the problem is 4h-3w

To plug them in, your new equation would be 4(-5)-3(2) and simplify. So it becomes -20-6 which = -26.

And -26 would be your answer.

3 0

4 years ago

Read 2 more answers

Sasha is 8 years than ei. the sum of their ages is 14. find the ages os sasha and rei

snow_lady [41]

Answer:

<h2><u><em>Rei 3 years old</em></u></h2><h2><u><em>Sasha 11 Years old</em></u></h2>

Step-by-step explanation:

sasha is 8 years than ei. the sum of their ages is 14. find the ages os sasha and rei

(14 - 8) : 2 = 3 (Rei)

8 + 3 = 11 (Sasha)

------------------

11 + 3 = 14

the answer is good

6 0

3 years ago

Barbara gets 6 pizza to divide equally among 4 people. How much of a pizza can each person ?

kozerog [31]

Your key word is divide. You'll want to divide your 6 pizzas by your four friends, than most likely convert it to a fraction (unless your teacher accepts decimals.), message if you need more help.

3 0

3 years ago

Read 2 more answers

Carly paid $17.50 for 7 gallons of gas and Jade paid $45 for 15 gallons of gas. Which of the following statements is true?

KatRina [158]

Answer:

Jade paid more per gallon than Carly

Step-by-step explanation:

3 0

3 years ago

A door of a lecture hall is in a parabolic shape. The door is 56 inches across at the bottom of the door and parallel to the flo

Arada [10]

Answer:

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . (See attachment included below). Head must 15.652 inches away from the edge of the door.

Step-by-step explanation:

A parabola is represented by the following mathematical expression:

$y - k = C \cdot (x-h)^{2}$

Where:

$h$ - Horizontal component of the vertix, measured in inches.

$k$ - Vertical component of the vertix, measured in inches.

$C$ - Parabola constant, dimensionless. (Where vertix is an absolute maximum when $C < 0$ or an absolute minimum when $C > 0$ )

For the design of the door, the parabola must have an absolute maximum and x-intercepts must exist. The following information is required after considering symmetry:

$V (x,y) = (0, 32)$ (Vertix)

$A (x, y) = (-28, 0)$ (x-Intercept)

$B (x,y) = (28. 0)$ (x-Intercept)

The following equation are constructed from the definition of a parabola:

$0-32 = C \cdot (28 - 0)^{2}$

$-32 = 784\cdot C$

$C = -\frac{2}{49}$

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . Now, the representation of the equation is included below as attachment.

At x = 0 inches and y = 22 inches, the distance from the edge of the door that head must observed to avoid being hit is:

$y -32 = -\frac{2}{49} \cdot x^{2}$