Mathematics High School

Find m. DCR if m. RCB= 115°
and m_ DCB = 169º.

Answers

Answer 1

It is 54. Draw it out. You will see that DCB - RCB = DCR

Related Questions

solve for the equation 3r = -24

Answers

Answer:

yes

Step-by-step explanation:

bc Quick maths

Answer:

r=-8

Step-by-step explanation:

A rectangular computer monitor is measured by the length and width of its display resolution. Three different monitors are described below. Monitor A has a display resolution of 640 pixels by 480 pixels. Monitor B has a display resolution of 800 pixels by 600 pixels. Monitor C has a display resolution of 1,280 pixels by 800 pixels. Which of the monitors are similar, based on their display resolution

Answers

Answer: Monitors A and B

Step-by-step explanation:

The similar monitors based on display resolution are those with similar ratios.

Take the ratios to their simplest forms to see which are similar.

Monitor A

= 640 : 480

= 16 : 12

= 4 : 3

Monitor B

= 800 : 600

= 8 : 6

= 4 : 3

Monitor C

= 1,280 : 800

= 32 : 20

= 8 : 5

Monitors A and B are similar as they have the same display ratio.

The numerator of a rational number 8

Answers

Answer:

We conclude that the numerator of a rational number 8 will be 8.

Step-by-step explanation:

We know that any number which can be written in the form p/q is called a rational number.

i.e. p/q

Where p and q are integers and q≠0.

Here:

The numerator is pThe denominator is q

Given the number

8

As number '8' can be written in the form p/q, so it is a rational number.

i.e. 8/1

Thus,

The numerator = 8The denominator = 1

Therefore, we conclude that the numerator of a rational number 8 will be 8.

Increase 130 by one fifth

Answers

Answer:

sorry i cant help

Step-by-step explanation:

Answer:

156.

Step-by-step explanation:

130/5 = 26.

130 + 26 = 156.

help if you have time !

Answers

Answer:

72 Bricks would be needed.

Step-by-step explanation:

24 * 2 = 48

12 * 2 = 24

48 + 24 = 72

what is equivalent to 2/3 - (-3/4) + 5/4

Answers

Answer:

Simplify the expression.

Exact Form:

8

3

Decimal Form:

2.

¯

6

Mixed Number Form:

2

2

3

Step-by-step explanation:

Papyrus or Undyne? YEET

Answers

Answer:

Papyrus. it is the only thing to pick! :) also YEET TO YOU TO

Answer:

:)

Step-by-step explanation:

Papyrus

lol

yeet to you too my good sir/madam

Which equation represents the hanger below. x represents the triangles while y represents the square

Answers

Answer:

Which equation represents the hanger below. x represents the triangles while y represents the square

Answer:

Step-by-step explanation:

so first divide

multiply and subtract

and think a little

there its easy :D

Why is the first step when solving
2x – 15 - 4x = 3 to combine like terms?

Answers

Answer:

-9 is the final answer

Step-by-step explanation:

2x-4x=-2x

so the equation would be -2x-15=3

add 15 to both sides -2x=18

divide both sides by -2

What is equivalent to (6xp)+3

Answers

Answer:

1(6xp+3)

Step-by-step explanation:

Multiply

Which fraction is the largest?

Answers

Answer:

17/30

Step-by-step explanation:

Please help i need to get this done asap !

Answers

Answer:

Step-by-step explanation:

Equation of line k is y = (-4/7)x + 1

point (-5,-10); m = -4/7

Line L is perpendicular to k so the perpendicular slope will be 7/4

Equation of line L is (y - y1) = m(x-x1)

y+10 = (7/4) (x +5)

4y + 40 = 7x + 35

4y = 7x - 5

y = (7/4)x - (5/4)

Triangle ABC,AB=BC=AC=A find A

Answers

Answer:

180/3 = 60

Step-by-step explanation:

the dimensions of a rectangular plot of land are 28.3m by 53.7m. Find
1) the perimeter of the land, correct to the nearest 10
2) the area of grass needed to fill up the entire plot of land, correct to the nearest 100m^2

also show the steps

Answers

Answer:

1. Answer is 160 m

2. Answer is 1500 m²

Step-by-step explanation:

perimeter = 2(l+b)

which implies 2( 28.3 + 53.7) m = 160 m

Area is length× breadth

which implies 28.3× 53.7 = 1500 m²

Please mark me brainliest

solve for x- 5(x+4)=30

Answers

Answer: x= -12.5

Step-by-step explanation:

Start with distributing-5(x+4) or you get

x-5x-20=30

Add x and -5x to get -4x

Thank you add 20 to each side and get

-4x = 50

Divide by -4 on each side to get x=-12.5

Answer:

x=-25/2 is the answer.

Step-by-step explanation:

Below are the steps for solving the equation:

Step 1: Simplify, combine like terms, and distribute:

x−5(x+4)=30

x+(−5)(x)+(−5)(4)=30

x+−5x+−20=30

(x+−5x)+(−20)=30

−4x+−20=30

−4x−20=30

Add 20 to each side:

−4x−20+20=30+20

−4x=50

Divide each side by -4:

-4x/-4=50/-4

x=-25/2, which is -12.5 as a decimal.

So, your answer is x=-25/2 as a fraction, which is also -12.5 as a decimal.

-3x + 7 (-6 – 5c)
C= 7
x = -9

Answers

Answer:

=−260

Step-by-step explanation:

= -260 that is the answer

A line has slope m=3/4 and passes through the point (0,-5) what is the equation of the line?

Answers

The equation is y = 3/4x -5.

When a number is decreased by 4%, the result is 66. What is the original number to the nearest tenth?

Answers

Answer:

68.8

Step-by-step explanation:

100% = x number

96% = 66

so 100%

= 68.75

to the nearest tenth is 68.8

5 and 7 are _____ angles.

a.alternate exterior
b.alternate interior
c.supplementary
d.right
e.corresponding

Answers

Answer:

c.supplementary.

Step-by-step explanation:

I hope l have answered your question. ❤❤❤

To the nearest tenth, what is the value of x?
A. 3.5
B. 4.8
C. 5.9
D. 7.3
E. 9.8

Answers

Answer:

D, I think, pls don't report if im wrong

Step-by-step explanation:

PLEASE HELP!! I found out the monthly rent but i don’t know how to write this equation in slope intercept form!! (i added a photo attachment)

Answers

Your formula for slope intercept is y=mx+b

Write 27 as a product of primes.
Use index notation when giving your answer.

Answers

27 = 1 x 27, or 3 x 9. Factors of 27: 1, 3, 9, 27. Prime factorization: 27 = 3 x 3 x 3, which can also be written 27 = 3³.

Answer:

3, 9, 3 and 3

Step-by-step explanation:

27

3 and 9

3 and 3

I don't know how to do index notation. I apologize.

HELPPP I WILL BRAINLIST!!

Answers

Answer:

Step-by-step explanation:

8 (x -3) +7 = 2x (4 -17)

8(x -3) +7 = 2x (-13) here was the error because the had 13 that is incorrect

8x -24 +7 = -26x

8x -17 = -26x

-17 = -26x -8x

-17 = -34x

-17/-34 = x

1/2 =x

What is the unit rate for cats per dog if there's 72 cats and 12 dogs

Answers

Answer:

6 dogs

Step-by-step explanation:

72 divided by 12=6

Please mark brainliset

Answer:

6:1, 6/1, or 6 to 1

Step-by-step explanation:

72/12

72/12=6

12/12=1

6/1

i need help!
number 14

Answers

Answer:

I’m gonna edit This answer give me a sec to do the work

Step-by-step explanation:

Answer:

1. One Solution

2. No Solution

3. Infinitely Many

Hope this helps :)

Solve for x 2.3x-3.2+1.6x=.7x

Answers

Answer:

x=1

Step-by-step explanation:

Answer:

x = 1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2.3x −3.2 + 1.6x = 0.7x

2.3x + − 3.2 + 1.6x = 0.7x

(2.3x + 1.6x) + (−3.2 )= 0.7x (Combine Like Terms)

3.9x + −3.2 = 0.7x

3.9x − 3.2 = 0.7x

Step 2: Subtract 0.7x from both sides.

3.9x − 3.2 − 0.7x = 0.7x − 0.7x

3.2x − 3.2 = 0

Step 3: Add 3.2 to both sides.

3.2x − 3.2 + 3.2 = 0 + 3.2

3.2x = 3.2

Step 4: Divide both sides by 3.2.

x = 1

Hope this helps!!!!!

Consider the triangle. Which statement is true about the length of the sides?
Each side has a different length.

Two sides have the same length, which is less than the length of the third side.

The three sides have the same length.

The sum of the lengths of two sides is equal to the length of the third side.

Answers

Answer:For this case we observe that the 2 angles of the triangle are equal. Also, we have by definition:

A triangle is , when the three sides are connected(in addition, the three internal angles measure 2 angles 45 degrees and 1 angle 90

Step-by-step explanation:

x2 + 13x = -22 solve for x

Answers

I believe the answer would be -2 and -11 hope this helped!

What is the r-value of the following data to three decimal places?

Answers

Answer:

.953

Step-by-step explanation:

took it on a test and got it right

Answer:

.953

Step-by-step explanation:

Pls help me it is a simple function

Answers

Answer:

blank 1 = 4

blank 2 = 1

Step-by-step explanation:

The slope is how much the y changes for each x value.

have a great day!!!

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