Simplify the expression.



-21k - 3 + 4 - 7k

Answer:

102 degrees bc it is vertical angle means there's same degree

Answer:

78 degrees

Step-by-step explanation:

because the two lines are parallel and both equal to 180, simply subtract 180 by 102 and you will get your answer :D (edit: I apologize, I didn't read the problem thoroughly. The answer would actually be 102)

Answer:

x=-4

Step-by-step explanation:

5+4x=-11

4x=-11-5

4x=-16

x=-16/4

x=-4

5+4(-4)=-11

5-16=-11

-11=-11

Answer:

x = -4

Step-by-step explanation:

5 + 4x =  -11

4x = -11 - 5

4x = -16 (Divide 4 both sides)

x = -4

5 + 4x =  -11

5 + 4(-4) = -11

5 - 16 = -11

-11 = -11

Answer:

150%

Step-by-step explanation:

Answer:

(a). ST = 15 units; (b). UV = 3 units; (c). [tex]P_{RST}[/tex] = 54 units; (d). SU = 9 units

Step-by-step explanation:

The centroid of a triangle is the intersection of the three median of the triangle.

If a median of a triangle is a perpendicular, then a triangle is an isosceles triangle.

Answer: a 4

Step-by-step explanation: a 5 6 a

Answer:

d)

Step-by-step explanation:

As it always n X n, from first row, there is 1 or 1 X 1, the second row is 4 which is 2 X 2, then keep going, so for nth row, there will be n X n cube.

If it is helpful, plz give me Brainliest.

The answer is c. 9z^7/y^6

Answer:  

Please look at the graph attached to find the x axis and y axis...

a) it has a postive association (becuase of the increment of the trendline)

b) it is linear becuase it is increased from the 0 value and up)

c) there is a outlier in the graph as you can see about four hours the GPA increased by 3.2 then back to 2.5

Hope this helps!!!

Answer:

yeah its 93 after being rounded

Step-by-step explanation:

already did it and commented i was just wondering what else there was cause it seemed like there was more.

Answer:

It is 6 inches long

Step-by-step explanation:

Since they are similar the ratio of width and length will be the same for both so the ratio for the first one is 2/3 so whats two thirds of 9? 6, and that's your answer. If you have any questions about this just leave a comment

Answer:

y=5x-3

Step-by-step explanation:

y=mx+b where m=slope and b= y-intercept

Answer:

<8

Step-by-step explanation:

<1 and <8 are alt exterior angles

Answer:

There are 48 boys in the choir

Step-by-step explanation:

Answer:

what are we helping with?

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

Step-by-step explanation:you spel't it wrong so if im right then its b and c

8+8

16+16

32+32

Answer:

oh dang.. imma head out, no big brain time for me..

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

[tex]2+ 3 = 5 \\13-5= 8\\8 divided by 2=4 \\x=4[/tex]

Answer:

Let's find the slope between your two points.

(4,2);(3,0)

Answer:

m=2

Answer:

35 degrees

Step-by-step explanation:

for all positive angles less than 360°, if csc (2x+30°)= cos (3y-15°), the sum of x and y is?​

Let the given expression be equal to 1, hence;

csc (2x+30°)= cos (3y-15°) = 1

csc (2x+30°) = 1

1/sin(2x+30) = 1

1 = sin(2x+30)

sin(2x+30) = 1

2x+30 = arcsin(1)

2x+30 = 90

2x = 90-30

2x = 60

x = 60/2

x = 30 degrees

Get the value of y;

cos (3y-15°) = 1

3y - 15 = arccos (1)

3y - 15= 0

3y = 0+15

3y = 15

y = 15/3

y = 5

Sum of x and y;

x+y = 30 + 5

x+y = 35degrees

Hence the sum of x and y is 35 degrees

Answer:

(1, 1)

Step-by-step explanation:

Answer:

Complemtary angles

Step-by-step explanation:

they add up to 90* as visible by the right angle symbol

Answer:

oh my god

Step-by-step explanation:

why is your image blockedddd

Answer:

Imagine skip counting by 9

<-------Negative side Positive Side------>

<-36 -27 -18 -9 -0- 9_18_27_36->

Numberline:

Answer: it’s the second one

Step-by-step explanation:

Answer:

33.3

Step-by-step explanation:

Hey so I'm tryna' do this thing wit my friend we have to get the most brainliest in 1 week so I was wondering if you could help me on that by giving me brainliest, u don't have to tho! it was a pleasure helping you.

Answer:

3times x =100

Step-by-step explanation:

well make the x the key of the answer

===================================================

Explanation:

See the diagram below. It shows there are 10 sides, so n = 10.

We'll plug this value of n into the formula below to find the sum of all ten interior angles

S = sum of interior angles

S = 180(n-2)

S = 180(10-2)

S = 180(8)

S = 1440 degrees

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

A different approach:

Let's assume this polygon is a regular polygon. This means each angle is congruent to one another.

We have n = 10 sides, so each exterior angle is E = 360/n = 360/10 = 36 degrees.

Each interior angle adjacent to this 36 degree exterior angle is

180-E = 180-36 = 144 degrees

Since we have 10 equal angles of 144 degrees each, so overall the interior angles add to 10*144 = 1440 degrees

Side note: if this polygon is not a regular polygon, then this section does not apply. You would use the first method instead.

Answer:

it'll be 64:5

Hope this helps

Hope this helps ALL THE BEST!!

Answer:

4.

A. (-4,4)

B. (0,0)

C. (-5,-2)

Step-by-step explanation: