Mathematics High School

can someone double check this? I got 12 as my answer​

Can Someone Double Check This? I Got 12 As My Answer

Answers

Answer 1

Answer:

angle C = 69 degrees

Step-by-step explanation:

(6x - 9) + (6x - 24) + (81 - x) = 180

11x + 48 = 180

11x = 132

x = 12

(81 - 12) = 69 degrees

Answer 2

Answer:

69°

Step-by-step explanation:

All angles in a triangle must add to 180°:

(5x+9)+(4x+15)+(x+36)=180

10x+60=180

10x=120

x=12°

The problem asks for the measure of angle C:

C=(81-x)°=69°

You were on the right track because you got the value of x correct. You just didn't answer the problem correctly.

Related Questions

-3x + y = 1 4x + y = 8

Answers

-3x+y=1

/-3      /-3

x+y=-1/3

4x+y=8

/4      /4

x+y=8

---

hope it helps

Answer:

x=-1y-9

Step-by-step explanation:

thabo rounded the number of marbles to the nearest 5. His answer was 340. write down 2 possible numbers for the actual number of marbles.​

Answers

Answer:

338 or 335 they both get rounded of to the nearest 5

2 possible numbers for the actual number of marbles 338 and 335, are rounded to the nearest 5.

What is rounding off of numbers?

We round off numbers to make them easier to remember and it also keeps their value approximately to the place it has been rounded off.

To round off any number to any place we'll look for the digit next to that place and if it is equal to or greater than 5 we'll add one to the previous digit and make all the digits after it zeroes and if the digit is less than 5 we do not add one to the preceding digit and simply make all the digit after it to zeroes.

Given, Thabo rounded the number of marbles to the nearest 5 and his answer was 340.

Therefore, 2 possible numbers for the actual number of marbles could be

Whether it's 338 or 335, both numbers are rounded to the nearest 5.

learn more about rounding of off numbers here :

https://brainly.com/question/13391706

#SPJ2


Determine the value of y, if x is 6.

y = x2 – 6

Answers

Answer:

6

Step-by-step explanation:

[tex]y = 6(2) - 6 \\ = 12 - 6 \\ 6[/tex]

Therefore, when x is 6 y = 6

how would i graph
y=− 5/2x-3
and
x−y=−4
(_,_)

Answers

Given:

The system of equations is

[tex]y=-\dfrac{5}{2}x-3[/tex]

[tex]x-y=-4[/tex]

To find:

The graph of the given system of equations and its solution.

Solution:

The table of values for [tex]y=-\dfrac{5}{2}x-3[/tex] is

x        y

-4       7

-2       2

0      -3

Plot these points and connect them by a straight line.

The table of values for [tex]x-y=-4[/tex] is

x          y

-4         0

-2         2

0         4

Plot these points and connect them by a straight line.

From the below graph it is clear that the lines intersect each other at point (-2,2).

Therefore, the solution of given system of equation is (-2,2).

The MTC Theater holds 250 people, and last night’s performance sold out!  Students paid $3.00 per ticket, while adults paid $5.00 per ticket.  Last night’s show brought in $1050.

Write a system of equations for the problem.

Answers

9514 1404 393

Answer:

s + a = 2503s + 5a = 1050

Step-by-step explanation:

Let s and a represent the numbers of student and adult tickets sold. The system of equations that can be written from the given information is ...

  s + a = 250 . . . . . . total of tickets sold

  3s +5a = 1050 . . . dollar value of tickets sold

_____

The solution is (s, a) = (100, 150). 100 student tickets and 150 adult tickets were sold.

PLZZ HELP I HAVE A TEST 20 POINTS
3( -2)(+3)(+4)

Answers

Answer:

8

Step-by-step explanation:

add ur positives

3+3+4=10

now add ur negative

10+ (-2)

8

I think the answer is -72. I'm not very sure, but I solved the equation the way I understood it, and I got -72.

find AB and BC with the help of given in figure complete following activity ​

Answers

Answer:

let base side be x=AB=BC

by using Pythagoras law

h²=p²+b²

(√8)²=x²+x²

8=2x²

x²=8/2

x=√4=2=AB=BC

Step-by-step explanation:

sin BAC=BC/AC

<BAC=sin-¹(2/√8)=45

what type of angels are shown​

Answers

Consecutive Interior

Answer:

? and 46 degrees are same side interior angles.

They are supplementary in that their sum is 180 degrees.

FYI:      ? = 180-46 = 136 degrees

what the answer for the poles in feet.

Answers

Answer:

A)10 feet tall

Step-by-step explanation:

The man casts a shadow half his height and so does the telephone pole

Please help find the volume in inches

Answers

Answer:

504 inches^3

Step-by-step explanation:

you multiple the height x length x width

please help as soon as possible

Answers

Answer:

∠ABC = 54°

Step-by-step explanation:

an inscribed angle is 1/2 the size of an incenter angle.

so:

∠AMC = 2(∠ABC)

10x - 12 = 2(4x + 6)

10x - 12 = 8x + 12

simplify:

2x = 24

x = 12

∠ABC = 4(12) + 6 = 54°

Answer pls im desperate (10 pts) (how many solutions does this have)

Answers

Answer:

Step-by-step explanation:

Left side

4x + 2x - 10

6x - 10

Right side

6x - 12

Eventually when you equate these sides, you will get an absurd answer because the 6x term will be subtracted out on both sides

that means you get -10 = - 12

which destroys the whole concept of equality. There is no solution.

the length width and height of a box form an arithmetic sequence. if the surface area of the box is 365.04 square units and the box's smallest dimension is 3 units, what is the volumes of the box in cubic units?

Answers

Answer:

the answer will be 365.04÷3

=121.68

Given a polynomial f(x), if (x − 4) is a factor, what else must be true? f(0) = 4 f(0) = −4 f(4) = 0 f(−4) = 0

Answers

Question:

Given a polynomial f(x), if (x − 4) is a factor, what else must be true?

f(0) = 4 f(0) = −4 f(4) = 0 f(−4) = 0

_______________________________________

Solution:

f(x) is a polynomial.

(x - 4) is a polynomial of f(x).

By converse of factor theorem: If (x - a) is a factor of f(x), then, f(a) = 0.

On comparing (x - 4) with (x - a), we get,

a = 4

So,

f(a) = 0

=> f(4) = 0

Solve the system by graphing.

y = −x + 2
y = −4x − 1

The solution of the system is

Answers

Answer:

(-1,3)

Step-by-step explanation:

The new patio at Tonya's house is 5 yards long by 10 feet wide. She is going to cover the patio with square bricks that measure 1 foot on each side. If each brick costs $4, how much will Tonya pay for the bricks? A rectangle that is five yards long and ten feet wide A. $600 B. $120 C. $150 D. $200

Answers

Answer:

A

Step-by-step explanation:

Steps to take to determine the answer

Because the length is in yards, it has to be converted to footFind the area of the patio using the length and width measured in footDetermine the area of the square brickMultiply the cost of the brick by the area

1 yards = 3 foot

5 x 3 = 15 foot

Area of a rectangle = length x breadth

15 x 10 = 150 ft^2

Cost = 150 x 4 = $600

A stack of 6 books weighs 4.8 pounds. If each book weighs the same amount, how much does each book weigh?

Answers

Answer:

Each book weights .8 pounds

Step-by-step explanation:

Take the total weight and divide by the number of books

4.8 /6

.8 lbs

Each book weights .8 pounds

If x=7 and y=-3 xy/3 + 2

Answers

Answer:

-5

Step-by-step explanation:

x = 7

y = -3

[tex]\frac{xy}{3} +2\\\\\frac{7(-3)}{3} +2\\\\\frac{-21}{3} +2\\\\-7+2\\-5[/tex]

which is the distance between the point with the coordinates (-2,3) and the line with the equation 6x-y=-3

Answers

Answer:

I think it is 6x+3=y (y=6x+3)

write the equation fully simplified slope intercept form

Answers

it is y=-1/5 - 1 since it intercepts at -1 on the y line

Answer:

y = -1/5x - 1

Step-by-step explanation:

The line crosses the y axis at -1, making it the y-intercept.

Since the line is going downwards from left to right, we know that it is a negative slope.

The line goes down one and 5 right. That makes the slope -1/5.

The equation is y = -1/5x - 1

Calculate the area of the shape below
3 1/2

Answers

Answer:

option B by using formula of area of circle.

Find the indicated side of the
triangle.

b = 7 [?]

Answers

b is a diagonal of a square. Diagonal is just [tex]a\sqrt{2}[/tex] which means that b is equal to [tex]7\sqrt{2}[/tex].

can someone help please 13 points and those are the only answer options for all 4

Answers

Answer:

1 - x-axis, 2 - y-axis, 3 - y-axis, 4 - x-axis

Step-by-step explanation:

does anyone know the answer to this?

Answers

Answer:

I think she has about 3 segments for sprinting and 6 segments for jogging

Antonio needed a loan worth 5,600. If the bank calculates interest at 3.1% compounded semi annually how much does he owe in 3years?

Answers

5600 in three yoears

Find the median of the data set: 18, 22, 25, 15, 17, 35, 32, 32, 36, 22, 18

Answers

Answer:

32

Step-by-step explanation:

is ab tangent to the circle​

Answers

Answer:

Yes. A tangent hits the side of a circle but does not go inside it.

Step-by-step explanation:

Please mark brainliest

A boogie board that normally sells for $69 is on sale at a 35% discount. what is the total cost of the boogie board? ​

Answers

Answer: 44.85

Step-by-step explanation:

for the equation below y=2.5^x-6

what is the y intercept of the graph

a) -6
b) -5
c) -3.5
d) 2.5

Answers

Answer:

kvh

Step-by-step explanation:

m

Alan has read 70% of a book and he has 15 pages left to read. How many pages are in the book

Answers

Answer:

Step-by-step explanation:

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