Mathematics High School

B is the midpoint of AC and AC=8r-20,and AB=3x-1
Find BC

B Is The Midpoint Of AC And AC=8r-20,and AB=3x-1Find BC

Answers

Answer 1

Answer:

BC = 26

Step-by-step explanation:

since B is the midpoint of AC, then AB = BC

AC = 8x - 20 & AB = 3x - 1

AC = AB + BC or 2AB

8x - 20 = 2(3x - 1)

8x - 20 = 6x - 2

subtract 6x form each side

2x - 20 = -2

add 20 to each side

2x - 20 + 20 = -2 + 20

2x = 18

x = 9

BC = 3x - 1

BC = 27 - 1

BC = 26

AC = 52

Related Questions

A computer at an electronics store costs $2,893 The tax is 6% how much money will you spend total?

Answers

Answer:

$3066.58

Step-by-step explanation:

$2893 x 1.06= $3066.58

Hope this helps!

Lawrence knows his race car can accelerate from 0 miles per hour to 100 miles per hour in 60 seconds. He assumed the acceleration was constant and created the graph below. If his graph is accurate, what point on the graph would give him the speed of the race car after 30 seconds of accelerating

Answers

Answer:

50 miles at 30 seconds

Step-by-step explanation:

It is that half way point of both the x and the y axis for the first minute of driving

Answer:

Lawrence knows his race car can accelerate from 0 miles per hour to 100 miles per hour in 60 seconds

You guessed the height of the building to be 23 feet, but it was actually 35 feet. What was your percent error? Round to the nearest WHOLE percent
please round to WHOLE

Answers

The percent error is 34.28 %.
Hope this helps! Be safe out there.

Answer:

34%

Step-by-step explanation:

35 - 23 = 12, so the guess is off by 12/35.

To find the percentage, divide 12 by 35, which is approximately 34%.

solve the equation for x in simplest form
2 / 3x = 1/6
A x= 1/4
B x= 3/5
C x=1/2
D= x=4/5

Answers

Answer:

A x=1/4

Step-by-step explanation:

2/3x = 1/6

Divide by 2/3

so 1/6 ÷ 2/3

= 1/6 • 3/2

= 3/12

= 1/4

plz help me huryyyyyyyyy

Answers

Answer:

100 3/13

Step-by-step explanation:

1,303 ÷ 13= 100 3/13

how do I find the percent of budget?​

Answers

Answer:

First, subtract the budgeted amount from the actual expense. If this expense was over budget, then the result will be positive.

Next, divide that number by the original budgeted amount and then multiply the result by 100 to get the percentage over budget. If your expenses were lower than your budgeted amount, then this number will be negative, describing the percentage under budget.

Find the length of the third side. If necessary, write in simplest radical form

Answers

Answer:

4^2 + 6^2 = x^2

Step-by-step explanation:

Pythagorean theorem is used. Solve for x.

please help for brainlist ASAP and explain or no brainlist

Answers

Answer:

A

Step-by-step explanation:

because as you see the odd number is 1 its A  

Answer:it’s 1/3 because it would be 1/2 to get two even number or odd so it’s 1/3

Step-by-step explanation:there’s 3 even numbers on one dice and it’s 1/2 a chance to get even and same for odds so with two dices it’s 1/3 because it’s 1/3 to get both evens and 1/3 to get both odds so it’s 1/3

WILL GIVE BRAINLIEST ASAP!!

1. Determine the area and perimeter of the quadrilaterals below.

Part A:

Part B:

Part C:

(see picture)

Answers

Answer: A) 1888 B) 664.225 C)?

Step-by-step explanation:

A= 42+76(1/2) = 59

59(32)=1888

A=163/10(163/4)=664.225

Which operation should you perform first when you simplify the expression below?
85+ (9-25.5) ÷ 3
A: addition
B:subtraction
C:multiplication
D:division

Answers

Answer:

A pq eu já não sei mas vou na A! não sei falar inglês, meu irmão leu, mas acho que não leu direito, eu chuto na A

B : subtractions

because first of all is What is inside the arc

THEY ARE REAL- PLEASE THEY AREN’T FAKE

Answers

PLLSSS OMGG IM CRYINGG THE LITTLE HATT

What number should be added to both sides of the equation to complete the square?

x^2-10x=12​

Answers

Answer:

Step-by-step explanation:

x²-10x = 12

Coefficient of the x term: -10

Divide in half: -5

Square it: (-5)² = 5²

Add 5² to both sides:

x²-10x+5² = 12+5²

(x-5)² = 37

Ken spent half of his money. The next day he earned $12. He now has $32. Which equation represents the situation?

Answers

I think the answer is 40
i think its 20 i might be wrong

Mitchell went to the grocery store and bought 30 bagels. If there are 3 bagels in each pack, how many packs of bagels did Mitchell buy?

Answers

Answer: 10

Step-by-step explanation: 30/3=10

Answer:

10

Step-by-step explanation:

Take the total number of bagels and divide by the number of bagels per package to determine the number of packs

30/3 = 10

He will buy 10 packs

Help me plz i will give brainlest

Answers

Answer:

the answer should be (3,-2)

1 + (2/3) - (-9/2) =

Answers

Answer..............

Answer:

- 4 1/6

Step-by-step explanation:

im not sure its right

Hi!! When we do percents could decimal way be sufficient or will fraction way be?

Answers

Answer:

fraction way would be

Step-by-step explanation:

The answer will be the number that turnings into fractions

What is the sum? A, B, C, D

Answers

Answer:

The sum is 5/y+5

if you click on the image it will show you the answer to.

A cylinder with a diameter of 8 inches and height of 12 inches.
Ross is wrapping a gift. The package is shaped like the cylinder shown. What is the least amount of paper he needs to cover the entire cylinder? Use 3.14 for Pi.
401.92 in.2
602.88 in.3
1004.8 in.2
2411.52 in.3

Answers

Answer:

401.92 in.2

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Find the area of the figure below. 7 cm​

Answers

Answer:

Area tells us the size of a shape or figure. It tells us the size ... The rectangle above has an area of 15 square units. The area of a ... Area = 7 cm x 6 cm = 42 cm2.

Step-by-step explanation:

just need to know the fraction

Answers

Answer:  1/2

The midsegment is always exactly half as long compared to the side it's parallel to.

Put another way, the longer side (4x+20) is twice long as the midsegment (3x).

Answer:

The answer your looking for is 1/2

Step-by-step explanation:

i'm really confused on this, anything will help

Answers

Answer:

I think its 1200 not sure though

Answer:

1,200

Step-by-step explanation:

first you would divide 480 copies by 4 minutes to see how many copies per minute (120) Then you would take 120 copies per minute and multiply it by the 10 and you would get 1200 copies per 10 minutes! lmk if that helps:)

need help please will mark you brainliests please give reason to ​

Answers

Answer:

angle BAD = 180 -2x

angle BCD = x                                                    given

angle BCD is an inscribed angle                      

angle DOB = 2 (angle BCD)                              

angle BAD = 180 -angle DOB                           2 tangent theorem      

Step-by-step explanation:

Answer:

[tex] m\angle BAD= (180 - 2x)\degree [/tex]

Step-by-step explanation:

[tex] m\widehat {BD} =2\times m\angle BCD[/tex]

(By inscribed angle theorem)

[tex] m\widehat {BD} =2x\degree [/tex]

[tex] m\widehat {BCD} =360\degree - m\widehat {BD}[/tex]

(By arc sum property of a circle)

[tex] m\widehat {BCD} =360\degree - 2x\degree [/tex]

[tex] m\angle BAD=\frac{1}{2} (m\widehat {BCD}-m\widehat {BD}) [/tex]

(by property of intersecting tangents outside of the circle)

[tex] m\angle BAD=\frac{1}{2} [(360\degree - 2x\degree) -2x\degree] [/tex]

[tex] m\angle BAD=\frac{1}{2} (360\degree - 2x\degree -2x\degree) [/tex]

[tex] m\angle BAD=\frac{1}{2} (360\degree - 4x\degree) [/tex]

[tex] m\angle BAD=\frac{1}{2} \times 2(180\degree - 2x\degree) [/tex]

[tex] m\angle BAD= (180 - 2x) \degree [/tex]

this is a yes or no question... if a box has equal and opposite forces acting on it, will the box be accelerate??

Answers

Answer:

no

............................

No because of the forces being equivalent

Find the tangent of the larger acute angle in a right triangle with side lengths 3, 4, and 5. Write your answer as a fraction

Answers

Answer:

4/3

Step-by-step explanation:

The larger accute angle in a 3 4 5 right triangle will always be the angle in between 3 and 5. Tangent theta = opposite side ÷ adjacent side, so 4/3.

The tangent should be in fraction is [tex]4\div 3[/tex]

Calculation of the tangent:

Since in a right triangle with side lengths 3, 4, and 5

Here there is the larger acute angle in the 3, 4 and 5 so it should be lies between 3 and 5

So, it should be like

= opposite side ÷ adjacent side

= [tex]4\div 3[/tex]

Hence, The tangent should be in fraction is [tex]4\div 3[/tex]

Learn more about fraction here: https://brainly.com/question/19107557

4sinA+3cosA=5
help me.... ​

Answers

Answer:

4sinA+3cosA=5 look at this answer.sorry if wrong.i am not sure.

Answer:

masamstha 31 deleted account is correct hope it's help you have a great day ☺☺

in this triangle, what is the value of x? Enter your answer, rounded to the nearest tenth, in the box. x = A right triangle with one leg labeled 66 millimeters and the hypotenuse labeled 79 millimeters. The angle that is opposite the 66 millimeter side is labeled x degrees.

Answers

Answer:

56.7°

Step-by-step explanation:

We solve this above question using the Trigonometric function of Sine

sin x = Opposite side/Hypotenuse

Opposite = 66mm

Hypotenuse = 79 mm

sin x = 66/79

x =arc sin(66/79)

x = arcsin(0.8354430379746836)

x = 56.661998553°

Approximately = 56.7°

Answer:

In this triangle, what is the value of x?

Enter your answer, rounded to the nearest tenth, in the box.

x = 56.7

Step-by-step explanation:

whats 667453x765678-543

Answers

Answer:

511054077591

Step-by-step explanation:

Answer:

511,054,077,591

Step-by-step explanation:

Is this an actual question tho?

what expressions are equivalent to -2(4-3x)+(5x-2)​

Answers

Answer:

11x-10

Step-by-step explanation:

1.Rearrange terms

-2(4-3x)+(5x-2)

-2(-3x+4)+(5x-2)

2.Distribute

-2(3x+4)+(5x-2)

6x-8+(5x-2)

3.Eleminate redundant parentheses

6x-8+(5x-2)

6x-8+5x-2

4.subtract the numbers

6x-8+5x-2

6x-10+5x

5.Combine like terms

6x-10+5x

11x-10

•solution

11x-10

uM ANY help pls?
Hopely someone can help!

Answers

Answer:

He made 35% of his shots he did not make 65& of his shots

Step-by-step explanation:

7/20=35%, 20/7=65%

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