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2 years ago

Select all that are measures of angles coterminal with a 145° angle.

Mathematics

2 answers:

Mamont248 [21]2 years ago

3 0

The first 2 and last 2. I just did this assignment

Margaret [11]2 years ago

3 0

Answer: 575°, -215°, 505° and 865°

Step-by-step explanation:

The co-terminal angle of an angle that has the common terminal to the angle,

It is defined by the formula,

A + 360 n

Where n is any integer,

Here A = 145°,

Thus, for n = 1, 2, -1 and -2

co-terminal angles are,

505°, 865°, 215° and 575° respectively.

⇒ Option first, second, seventh and eighth are the correct options.

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The perimeter cf a rectangle i: 56 inches" the ratio of the length of the width is 6 : 1. Find the length and the width.

sergejj [24]

Answer: Length = 24; width =4

Step-by-step explanation

Since the ratio of the length to width is 6:1

Let the length be represented as 6x

And the width be = x

Such that that the Perimeter of the rectangle which is

Perimeter = 2(length + width) becomes

56 = 2(6x + x)

56/2 = 6x+x

28 = 7x

x = 4

Width = 4

Length = 6x= 6 x 4 = 24

8 0

2 years ago

Match the following items by evaluating the expression for x = -2.

Sloan [31]

Answer:

1) $-4$

2) $-3$

3) $1$

4) $-2$

5) $4$

Step-by-step explanation:

According to the information given in the exercise, the value of "x" is:

$x = -2$

Then:

1) You must substitute $x = -2$ into the expresion $x-2$ :

$=(-2)-2$

Now, you must evaluate:

$=-4$

2) You have to substitute the given value of "x" into the second expression:

$x-1=(-2)-1$

Finally, evaluating, you get the following result:

$=-3$

3) According to the Zero exponent Rule, any non-zero number with an exponent of zero is equal to 1.

Then, substituting $x = -2$ into the expression $x^0$ and then evaluating, you get:

$x^0=(-2)^0=1$

4) By definition:

$a^1=a$

Then, substituting $x = -2$ into $x^1$ and evaluating, you get:

$x^1=(-2)^1=-2$

5) Since:

$a^2=a*a$

When you substitute the given value of "x" into the last expression and then you evaluate, you get:

$x^2=(-2)^2=(-2)(-2)=4$

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2 years ago

At Pizza Pi, 68% of the pizzas made last week had extra cheese. If 17 pizzas had extra cheese, how many pizzas in all were made

olganol [36]

Answer:

50 Pizzas

Step-by-step explanation:

50 pizzas.

4 0

2 years ago

In ABCD, m B = (5x + 14), m/C = (2+19)", and mZD = (2x + 19).<br> What is the value of x?

Alisiya [41]

Answer:

ramsey.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

X² – 2x=4

Shtirlitz [24]

Answer:

x= -1.24, 3.24

Step-by-step explanation:

x² – 2x=4

Bring 4 over

x² – 2x - 4=0

Quadratic formula:

if ax²+bx+c=0

$\frac{b(+-)\sqrt{b^2-4ac} }{2a}$ the (+-) = ±

$\frac{-(-2)+\sqrt{(-2)^2-4*1*(-4)} }{2*1}$ = 3.24

$\frac{-(-2)-\sqrt{(-2)^2-4*1*(-4)} }{2*1}$ = -1.24

3 0

2 years ago