All categories

4 years ago

I don't get this. can someone help me. I have a whole packet of this.

Mathematics

1 answer:

Harrizon [31]4 years ago

7 0

For #2, ∠3 and ∠1 are supplementary. You know that the measure of ∠1 is 162°, so what is ∠3? 180-162=18.
m∠3=18° if ∠1=162°.
Hope this helped!

You might be interested in

Hi can anyone help me with these 3 questions would really appreciate it thanks

Virty [35]

Answer:

1) 8

Step-by-step explanation:

3+2 is 5

4^2 is 16

16×5=80

2×5=10

80÷10=8

7 0

3 years ago

Read 2 more answers

Which fraction is equivalent to 1/4? A.6/18 b.12/60 c.25/100 d.20/100

fredd [130]

Answer:

c. 25/100

Step-by-step explanation:

The given fraction is 1/4.

Here we need to find the equivalent to 1/4.

It c. 25/100

Let me explain.

Multiply 1/4 by 25 both the numerator and the denominator.

1/4 *25/25 = 1*25 / 4*25

= 25/100

All other fractions are not equivalent to 1/4

Answer: c. 25/100

Thank you.

6 0

3 years ago

Read 2 more answers

Will give brainiest Find the equation of the straight line parallel to the y-axis and passes through the point (-2, 3). _____

IrinaVladis [17]

Answer:

Step-by-step explanation:

8 0

2 years ago

Hi, teacher I was absent these days and I didn’t understand anything about this lesson and I need help this is not count as a te

motikmotik

Given:

There are given that the cos function:

$cos210^{\circ}=-\frac{\sqrt{3}}{2}$

Explanation:

To find the value, first, we need to use the half-angle formula:

So,

From the half-angle formula:

$cos(\frac{\theta}{2})=\pm\sqrt{\frac{1+cos\theta}{2}}$

Then,

Since 105 degrees is the 2nd quadrant so cosine is negative

Then,

By the formula:

$\begin{gathered} cos(105^{\circ})=cos(\frac{210^{\circ}}{2}) \\ =-\sqrt{\frac{1+cos(210)}{2}} \end{gathered}$

Then,

Put the value of cos210 degrees into the above function:

So,

$\begin{gathered} cos(105^{\circ})=-\sqrt{\frac{1+cos(210)}{2}} \\ cos(105^{\operatorname{\circ}})=-\sqrt{\frac{1-\frac{\sqrt{3}}{2}}{2}} \\ cos(105^{\circ})=-\sqrt{\frac{2-\sqrt{3}}{4}} \\ cos(105^{\circ})=-\frac{\sqrt{2-\sqrt{3}}}{2} \end{gathered}$

Final answer:

Hence, the value of the cos(105) is shown below:

$cos(105^{\operatorname{\circ}})=-\frac{\sqrt{2-\sqrt{3}}}{2}$

4 0

1 year ago

Write an equation in slope-intercept form (y = mx + b) , that perpendicular to y = 2x - 4 that passes through the point (3, - 3)

FromTheMoon [43]

Answer:

Step-by-step explanation:

perp. -1/2

y + 3 = -1/2(x - 3)

y + 6/2 = -1/2x + 3/2

y = -1/2x - 3/2

8 0

3 years ago