MATHEMATICS HIGH SCHOOL

20 POINTS ! PLUS BRAINLIEST ANSWERGive the sum of 2x -3 and 7x + 21
Find the measure of angle KMP
Find the measure of the complement of angle KMX

Photo is attached please give correct answers otherwise I will have to report the answer for false info and get my points back
20 POINTS ! PLUS BRAINLIEST ANSWER Give the sum of - 1

Answers

Answer 1
Answer: Give the sum of 2x -3 and 7x + 21 
2x-3+7x+21
Add like terms:
9x+18

Find the measure of angle KMP
<KMX + <XMY = 180   (because they are on a line)
2x-3+7x+21=180
9x+18=180
9x=162
x= 18
<XMY and <KMP are vertical angles so they have the same angle measure. So find <XMY with x.
<XMY= 7x+21
<XMY= 7(18)+21
<XMY= 126+21 = 147 degrees
<XMY = <KMP = 147 degrees

First find <KMX to find the complement of it.
<KMX=2x-3
<KMX=2(18)-3
<KMX=36-3
<KMX=33
The complement of an angle is 90 degrees subtracted by the angle itself because complementary angles add up to 90 degrees.
90-33=57
The complement would have 57 degrees.

Answers : 
9x+18
147 degrees
57 degrees

Hope this helps :)
Answer 2
Answer: sum of 2x-3 and 7x+21
2x-3+7x+21
2x+7x-3+21
9x+18

since KY is a straight line, 2x-3+7x+21=180
9x+18=180
subtract 18
9x=162
divide 9
x=18
subsitute
2x-3
2(18)-3
36-3
33=KMX
other angle is
33+otherangle=180
otherangle=XMY=147
KMP=XMY=147

KMX=33
complement is what adds to 90
33+what=90
subtract 33
what=57
complement is 57 degrees










2x-3+7x+21=9x+18
KMP=147
complement of KMX=57

Related Questions

(c) Danny also pulls two cards and says that his SUM is ZERO. What pairs of cards could Danny have pulled? List all correct answers and explain why or show your work. the cards are 1 2 3 4 5-1 -2 -3 -4 -5
Can we combine a high quality of life with environmental sustainability?
2. Consider the numbers 4/13 and 3/10 .a. Compare the numbers.b. Find a rational number between the two given numbers
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Photo attached to this

Answers

The area would be 24 in. because to find the area of a triangle you need to multiply the height by the base then divide it by 2 and you get your answer.
6*8=48
48/2=24
Hope this helps.

Practice simplifying rational expressions with negative exponents.

Answers

Answer:

Part 1:- option first is correct

-(1)/(2)ab^(12)

Part 1:- option third is correct

(w^(10))/(3y^(4))

Step-by-step explanation:

Given:

The given ration expressions are.

1. (-2a^(2)b^(4))/(4ab^(-8))

2.(-5w^(4)y^(-2))/(-15w^(-6)y^(2))

We need to simplify the given expressions.

Solution:

Part 1:-

Given expression is

=(-2a^(2)b^(4))/(4ab^(-8))

Using law of exponents (x^(m) )/(x^(n) ) = x^((m-n))

=-(a^(2-1)b^(4-(-8)))/(2)

=-(a^(1)b^(4+8))/(2)

=-(ab^(12))/(2)

=-(1)/(2)ab^(12)

Therefore, option first -(1)/(2)ab^(12) is correct.

Part 2:-

Given expression is.

=(-5w^(4)y^(-2))/(-15w^(-6)y^(2))

Using law of exponents (x^(m) )/(x^(n) ) = x^((m-n))

=(w^(4-(-6))y^(-2-2))/(3)

=(w^(4+6)y^(-4))/(3)

=(w^(10)y^(-4))/(3)

=(w^(10))/(3y^(4))

Therefore, third option (w^(10))/(3y^(4)) is correct.

Need help
-1/2 + (3/4X4/9)=

Answers

Answer:

-(1)/(6)

Step-by-step explanation:

In order to find the answer to this question you must use order of operations and add after finding the common denominator.

-(1)/(2) +((3)/(4) *(4)/(9) )

P goes first

(3)/(4) *(4)/(9)

Solve:

3*4=12

4*9=36

=(12)/(36)

Reduce:

12/6=2

36/6=6

2/2=1

6/2=3

=(1)/(3)

-(1)/(2) +(1)/(3)=(-1*3)/(2*3) +(1*2)/(3*2) =-(1)/(6)

=-(1)/(6)

Hope this helps.

Answer:

The correct answer would be negative 1 over 6 also written as -1/6

Step-by-step explanation:

HAVE A GOOD DAY!

When factored completely, the expression p^4-81 is equivalent to what?

Answers

differnce of 2 pefect squares
a^2-b^2=(a-b)(a+b)
(p^2)^2-9^2=(p^2-9)(p^2+9)

p^2-9=(p-3)(p+3)

factored is
(p-3)(p+3)(p^2+9)
Hello,

p^4-3^4=(p²+9)(p²-9)=(p-3)(p+3)(p²+9) [in R]
[(maybe (p-3)(p+3)(p-3i)(p+3i) in C]

Which set of three angles could represent the interior angles of a triangle?A:199, 709, 910
B:470, 120, 310
C:50°, 20° 20°
D:250, 250, 100%

Answers

C would be the correct answer

Answer: B

Step-by-step explanation:

What is the area of the kitchen floor in this floor plan?A-24 sq meters
B-28 sq meters
C-35 sq meters
D-42 sq meters

Answers

Answer:  The correct option is (C) 35 sq. meters.

Step-by-step explanation:  We are given to find the area of the kitchen floor in the floor plan shown in the figure.

From the figure, we see that

the kitchen is in the form of a rectangle with length 7 meters and breadth 5 meters.

We know that

the area of a rectangle with length l units and breadth b units is given by

A=l* b.

For the rectangular kitchen, we have

length, l = 7 meters

and

breadth, b = 5 meters.

Therefore, the area of the kitchen floor in the floor plan is given by

A=l* b=7* 5=35~\textup{sq. meters}.

Thus, option (C) is CORRECT.
First you would figure out the dimensions, which are 7 ft by 5 ft. Then, multiply those together, which equals 35 sq ft. The answer to your question is C - 35 sq ft. Hope this helps!
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