Mathematics High School

Please Help :)
Set up the equation and find the length of BC.

Please Help :)Set Up The Equation And Find The Length Of BC.

Answers

Answer 1

Answer:

BC= 29

Step-by-step explanation:

If the total, AC, is 54 and AB is 25 subtract those two to find the last part, BC.

Related Questions

Solve for w.
4 = 0.25(w-4.3)

Answers

W=20.3

solve what's in the parenthesis, move the terms, calculate, then divide both sides.

Answer:

20.3

Step-by-step explanation:

I did it and it was right on khan

Can someone help me please

Answers

Answer:

c) 4 or more times

Step-by-step explanation:

Brett decides to order some new books using a $50 gift card he received for his birthday. He decides to buy as many of a new series of books he can without exceeding the amount on his gift card. If each book cost $12.99 and shipping charges are $7.99 for any size order, what is the maximum number of books that Brett can purchase?

Answers

the correct answer is 3

In segment AC, point B is between A and C. Which of the following is true?
A. Point A + Point B = Point C
B. AB + AC = BC
C. AB + BC = AC

Answers

Answer:

b

Step-by-step explanation:

Answer:b

Step-by-step explanation:

f(x) = 3x ^ 2 + 2x + 10

Answers

Answer:

No x-intercept (zero)

f(0)=10

Step-by-step explanation:

No x- intercept/Zero

Step-by-step
F(x) = 3x^2 + 2x + 10
To find x-intercept/zero, Substitute
F(x) = 0
0 = 3x^2 + 2x + 10
Swap the side of the equation
3x^2 + 2x + 10 = 0
Solve the quadratic equation
ax^2 +b+c = 0
X= -b+ b^2 -4 a c/ 2a
X= -2+ 2^2 -4 x 3 x 10/2x3
X= -2+ 4-4 x 3 x 10/ 2 x 3
-> x=-2+ 4-120/2 x 3 -> x=-2 4-120/6
X=-2+ -116/6
-> calculate the difference
X= -2+ -116/6
The square root of a negative
number dose not exit in the set of
Real numbers
No x-intercept/zero

Lines DE and AB intersect at point C.
What is the value of x?

Answers

Answer:

25

Step-by-step explanation:

[tex](2x + 2) +( 5x + 3) = 7x + 5 = 180 \\ 7x = 175 \\ x = 25[/tex]

Answer:

25

Step-by-step explanation:

2x+2+5x+3=180

7x+5=180

7x=175

x=25

EXPLAIN: How can you use proportions to solve problems?

NO TROLL ANSWERS!!

Answers

Helps you work with number more effectively

Answer:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Step-by-step explanation: i hope this helps if it does vote me the brainliest or like and rate 5 starts if u cant vote me

0.297
x7.1
=297
+ 20790
21.087
O True
O False

Answers

Answer:

False.

Step-by-step explanation:

0.297x7.1=2.1087

2.1087+20790= 20792.1087

Question 9
3 pts
2
1
3.
4
If m 1 equals (4x + 2) and m23 equals (5x - 15), what is the value of x?
016
O 14
O 15
17

Answers

Answer:

17

Step-by-step explanation:

m<1 = (4x + 2)

m<3 = (5x - 15)

To find the value of x, we need to generate an equation.

<1 and <3 are vertical angles. Vertical angles are congruent. Therefore:

m<1 = m<3

(4x + 2) = (5x - 15)

Use this equation to solve for x

4x + 2 = 5x - 15

Subtract 5x from both sides

4x + 2 - 5x = 5x - 15 - 5x

-x + 2 = -15

Subtract 2 from both sides

-x + 2 - 2 = -15 - 2

-x = -17

Divide both sides by -1

x = 17

Find the axis of symmetry f(x) = 2x2 - 4x.

Answers

Answer:

x=1

Step-by-step explanation:

The function graph is a parabola (branches pointing up). Vertex (1; -2). The graph is symmetrical about the x axis = 1

[tex]f(x)=2x^{2} -4x \\x_{0} =-b/2a=-(-4)/(2*2)=1\\f(1)=-2\\[/tex]

h(-1) means that x is...

Answers

Answer:

-1

Step-by-step explanation:

h(x) is another way to say y. the "x" inside h(x) IS the x value

What is the mean for the data set, to the nearest whole number? 8.5 10 8 9 I need help

Answers

Answer:

9

Step-by-step explanation:

Add the numbers together and then divide by how many numbers there are.

Answer:

you need to show it

Step-by-step explanation:

what is the result of converting 20 ounces into pounds?

Answers

Answer:

20 ounces is 1.25 pounds

Step-by-step explanation:

Answer:

20 ounces -> 1.25 pounds

Step-by-step explanation:

Divide the given ounce value by 16 or multiply the ounce value by 0.0625

20 oz /16 = 1.25 lbs

20 oz x 0.0625 = 1.25 lbs


True or False? (-x)^6 = -x^5 Explain your
answer (use either words or an example).

Answers

Answer:

False

Step-by-step explanation:

[tex](-x)^{6}[/tex] = [tex]x^{6}[/tex]

- [tex]x^{5}[/tex] = - [tex]x^{5}[/tex]

Thus

[tex](-x)^{6}[/tex] ≠ - [tex]x^{5}[/tex]

keira has 36 cakes,she gives 1/6 of them to tom and 1/9 to sue, how many cakes does she have left?

Answers

Answer:

26

Step-by-step explanation:

1/6 of 36 is 6

1/9 of 36 is 4

6+4=10

36-10= 26

Answer:

26 cakes

Step-by-step explanation:

36 divided by 6 = 6

30 - 6 = 24

36 divided by 9 = 4

6 + 4 = 10

36 - 10 = 26

Hopefully this helps you :)

pls give me brainlest  ;)

Evaluate.
(−2
5
2
​
)
2

Answers

Answer:

-63504

Step-by-step explanation:

Question 1. √80/6 Question 2. (2√5)^2

Answers

Answer:

Q1: is 0

Q2: is 20

Step-by-step explanation:

Q1: Divide the numbers 0 ÷ 6 = 0

√8 × 0

√8 = 2√2

2 × 0 × √2

Apply rule 0 × a = 0

Q2: Apply exponent rule : (a × b)^n = a^n b^n

2^2(√5)^2 = 2^2 (√5)^2

2^2 = 4

4 (√5)2

(√5)^2 = 5

4 × 5

Multiply the numbers: 4 × 5 = 20

What is 0.007826 converted to scientific notation

Answers

7.826 x 10^-3 ( 10 to the negative 3rd power)

Answer:

7.826 • 10^-3

Step-by-step explanation:

the decimal is moved 3 places to the right in order for there to be a digit in the ones place

because decimal is moved right, the exponent must be negative

15points+brainliest!! please help :(!

Answers

Answer:

rise 6 units up

Step-by-step explanation:

Answer:

6 units up

Step-by-step explanation:

Take a point

A is at  (-6,-2)

A' is at  (-6,4)

The shift is in the y coordinate of +6

This is a vertical shift

please help, thanks!

Answers

Answer:

a) 10.5cm

b) 1520cm³ (3 s.f.)

c) 1270cm² (3 s.f.)

Step-by-step explanation:

Please see the attached picture for full solution.

please help! i need to find the mean

Answers

Answer:

         The mean is 3.74

Step-by-step explanation:

[tex]\overline x =\dfrac{-3\cdot4+(-2)\cdot2+3\cdot1+4\cdot1+6\cdot4+8\cdot7}{4+2+1+1+4+7}\\\\\\\overline x =\dfrac{-12-4+3+4+24+56}{19}\\\\\\\overline x =\dfrac{71}{19}=3.7368421....\approx3.74[/tex]

- 6 - 11
please help i don’t know what i’m doing!!

Answers

Answer:

-17

Step-by-step explanation:

Answer:

-17

Step-by-step explanation:

this is the correct answer

CA-Common Core Math 8 (INT) - 1536
Analyzing a Table
Aaliyah's Savings Plan
25+8.25w
w
t
(w, t)
Equation; t = 25 + 8.25w, where w is the number of
weeks and t is the total Aaliyah saved,
What is the error that occurred when Aaliyah
completed her table?
O The table must start at week 1.
12
25+8.25(12)
124
(12, 124)
13
25+8.25(13)
132.25
(132.25, 13)
O The w and t columns need to be switched.
O The ordered pair (132.25, 13) should be (13,
132.25)
O 25 + 8.25(15) = 148.75 in week 15 is not calculated
correctly.
14
25+8.25(14)
140.5
(14, 140.5)
15
25+8.25(15)
148.75 (15, 148.75)
3) Intro
Done
evious Activity

Answers

Answer:

Its c

Step-by-step explanation:

i just did it on edge

C is correct.

Equation: t = 25 + 8.25w, where w is the number of weeks and t is the total Aaliyah saved.

What is the error that occurred when Aaliyah completed her table? The ordered pair (132.25, 13) should be (13,  132.25).

emily bought 3 vases of flowers.the most expensive vase of flowers was 12.00 and least expensive was 8.00 which is a reasonable total amount emily could have paid for the 3 vases of flowers

Answers

Answer:$30

Step-by-step explanation:8+12=20 and I would figure she had another one with a price inbetween the two so I chose 10 and added 20+10=30

Find the midpoint of the segment with the following endpoints.
(10,7) and (5, 4)

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{(7.5 \: , \: 5.5)}}}}}[/tex]

Step-by-step explanation:

Let the points be A and B

Let A ( 10 , 7 ) be ( x₁ , y₁ ) and B ( 5 , 4 ) be ( x₂ , y₂ )

Finding the midpoint

[tex] \boxed{ \sf{midpoint = (\frac{x1 + x2}{2} , \: \frac{y1 + y2}{2})}} [/tex]

[tex] \dashrightarrow{ \sf{( \frac{10 + 5}{2} \: , \: \frac{7 + 4}{2} )}}[/tex]

[tex] \dashrightarrow{ \sf{( \frac{15}{2} \: , \frac{11}{2}}} )[/tex]

[tex] \dashrightarrow{ \sf{(7.5 \: , \: 5.5)}}[/tex]

Hope I helped!

Best regards! :D

evaluate the function when x = 4 b(x) = -2x - 4

Answers

Ohhhh same I wanna know the answer to that

Jan joined the dining club at the local cafe for a fee of $29.95. being a member entitles her to save $2.50 every time she buys lunch. so far, Jan calculates that she has saved a total of $12.55 by joining the club. write and solve an equation to find out how many times Jan has eaten lunch at the cafe

Answers

Answer:

17 lunches

Step-by-step explanation:

The ratio of white cars in the parking lot to
black cars is is 5 to 7. The number of white
cars is 24 less than the number of black cary
How many black cars are there?

Answers

Answer:84

Step-by-step explanation:

you multiply each side by 12. That gets you 60 white cars and 84 black cars. 60 is 24 less than 85

HELP FAST PLZ!! I GIVE BRANLIY!
what is the difference between the Integers -11 and -3?​

Answers

Answer:

wait on second thought -8

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

-11<-3

-3-8 = -11

Difference = -8

Find the distance CD rounded to the nearest renth C=(6,-5) and D=(-1,-4)

Answers

Answer:

The distance from C to D is 7 units left and 1 unit up

Step-by-step explanation:

Answer:

C to D is 7 units left and 1 unit up

Step-by-step explanation:

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