Mathematics High School

Item 3
Find (12y−1)+(−10y+7).

Answers

Answer 1

Answer:

2y+6

Step-by-step explanation:

Related Questions

Find the product of the polynomials. (2x + 6)(3x − 2)

Answers

Answer:

6x^2 + 14x -12

Step-by-step explanation:

DF=55 DE=2x+8 EF=5x-2

what is X?

Answers

Answer:

x=7

Step-by-step explanation:

DF=DE+EF=2x+8+5x-2=55

7x=49

x=7

X=7 DJ gdgshhejshshshsjjsjsudd

Which expressions are equivalent to x+4 : when X=0? Select three options. X 4 3 3 2x2 + 4x WY x2 + 4x​

Answers

Answer:

a,c,d

Step-by-step explanation:

Plz help with graph polynomial

Answers

Answer:

(x + 1 ) is a factor

Step-by-step explanation:

Given a polynomial with roots x = a, x = b , then the corresponding factors are

(x - a) and (x - b)

From the graph

The roots are x = - 1 and x = 4 , thus factors are

(x - (- 1)) and (x - 4) , that is

(x + 1) and (x - 4)

(x + 1) is the required factor

Determine the slope of the table
A)2
B)5
C)-0.5
D)0.5

Answers

Answer:

C) -0.5

Step-by-step explanation:

Since the y₁ is decreasing, that automatically makes it a negative slope, and its decreasing by 0.5, so it's C!

The correct answer is C) -0.5

The measure of an angle is 66° . What is the measure of its complementary angle ?

Answers

Answer:

24º

Step-by-step explanation:

90-66 = 24º. So since complementary angles are 2 angles that add up to 90 degrees. That means that 66 + x = 90 using the information given. Then we use algebra and get that x =24. Therefore the answer is 24º.

Answer:

The supplement of 66° is the angle that when added to 66° forms a straight angle (180° ).

Step-by-step explanation:

A supplementary angle is an angle that equals 180°. So now we know that the two angles added together will give us 180°, we can use this to check at the end.

Let's call the smaller angle x

We also know that the larger number is 66° more than the smaller. This gives us:

x+x+66°=180°.

x is equal to the smaller angle, and the second angle is (x) - the smaller number with an extra 66°, giving us the difference.

Now we can simplify this by subtracting 66° from both sides.

1) 4x + 3 23

2) x/5 -2 ≤ -6 or 8x + 1 ≥ 41

Answers

Answer:

hi

Step-by-step explanation:

18x + x = 8x - 20x
What kind of problem is this? (one solution, no solution, infinitely/many)

Answers

Answer:

no solution

Step-by-step explanation:

Answer:

its an infinitely/many

Step-by-step explanation:

lesson 5 mod1 answer key 7.1

Answers

On second about to do it

What is the prime factorization of 154?

2 × 7 × 11
2 × 7 × 13
2 × 5 × 11
2 × 5 × 13

Answers

Answer:

2 x 7 x 11

Step-by-step explanation:

please help i have 15 minutes ​

Answers

Answer:

D

Step-by-step explanation:

my math teacher just help me

i hope its right if its not sorry

Answer:

Step-by-step explanation: the 2 one

can someone please help me with number 18 !! :(

Answers

Answer: The last one.

Step-by-step explanation:

TRY TO SOLVE
1/L , 1/M
are the two roots of the equation : 6X²- 5X+ 1 = 0,
find the equation whose roots are L and M ​

Answers

9514 1404 393

Answer:

  x^2 -5x +6 = 0

Step-by-step explanation:

Perhaps the easiest way to do this is to find the roots of the given equation, then write the equation that has reciprocal roots. The given equation can be factored as ...

  (2x -1)(3x -1) = 0   ⇒   roots 1/2, 1/3

Then the factoring of the equation with reciprocal roots is ...

  (x -2)(x -3) = 0

  x^2 -5x +6 = 0

_____

If p is a root, then (x -p) is a factor. If (ax -b) is a factor, then b/a is a root, the value of x that makes that factor zero.

A square board was attached to a wall. The board was divided by four squares and each square was colored either black or white. How many possible combinations of such coloring are there, if we cannot rotate the given board? PLEASE HELP QUICK! IM NEW AND I NEED ANSWERES! I HOPE BRAINLY DEOS NOT FAIL ME!

Answers

Answer:

24 combinations

Step-by-step explanation:

For this problem, you use factorials. Factorials are when you multiply every number below it except zero. So like the factorial of 3 or 3! is 3*2*1 is 6.

Factorials are used to figure out how many combinations there are of something. So for you, we have 4 different quadrants so we write that as 4! (! is the sign for factorials.)

By the way, welcome to brainly.  

Here are ten numbers 3, 7, 2, 4, 7, 5, 7, 1, 8, 8, what is the mode, median, range and mean

Answers

3,7,2,4,7,5,7,1,8,8

Step-by-step explanation:

The median is the middle. You add and divide for the mean. The mode is the one that appears the most. And the range is the difference in between.

Answer:

Mode = 7

Median = 6

Range = 7

Mean = 5.2

h(t) = t + 2 + 3; Find h(6)

Answers

If you wanted a step by step:

6 = t in this case so simply plug in 6 to the equation and get 6 + 2 + 3, after adding you’ll have 11.

Answer: h(6) = 11
Answer:

h(6) = 11

Step-by-step explanation:

Hi there !

h(t) = t + 2 + 3

= t + 5

replace t = 6

h(6) = 6 + 5

= 11

Good luck !

Jenifer bought 6 packages of hotdogs and 8 packages of rolls for $41.50. A package of rolls cost $0.85 less than a package of hotdogs. How much did each package of hotdogs cost?

Answers

Answer:

hotdogs 3.45

rolls 2.60

Step-by-step explanation:

6h + 8r = 41.5

r=h-.85

6h + 8(h-.85)=41.5

6h + 8h - 6.8 = 41.5

14h = 41.5 + 6.8

14h = 48.3

h=48.3/14

h=3.45

r=3.45-.85=2.6

Translate the sentence into an equation.

Seven times the sum of a number and 8 is 6.

Use the variable y for the unknown number.

Answers

Answer:

the answer is 7(y+8)=6 :)

Use the features you determined in part A to graph the line representing the equation 10x + 12y = 240.

Answers

y= -5/6+20 if that’s ur question?

Answer:

Step-by-step explanation:

10x + 9 – 6x = -19 what does x equal in this equasion

Answers

Answer: x = -7

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

Answer:

x = -7

Step-by-step explanation:

10x +9 -6x = -19

10x-6x = -19 -6

4x = -28

x = -7

In scientific notation

Answers

The answer is 5 x 10*3

What is the slope of this graph

Answers

i believe it is 0.5 or 1/2 and negative

2(x-4)=3x-2
What is the value of x in this equation

Answers

Answer:

2x-8=3x-2

2x-3x=-2+8

-1x=6

X=6/-1

X=-6

So, you want to move any number with a variable to one side and one without a variable to the other
But first, you must distribute the 2(x–4)
2(x–4) –> 2x–8
Next, move the numbers.
2x–8=3x–2
-8=x–2
-6=x
x is 6

seven apples cost five dollars. How many apples can I buy for $8?

Answers

Answer:

11 apples

Step-by-step explanation:

7/5=1.4

1.4x8=11.2

11.2 rounded to 11

Find the slope of the line passing through the points (-6, 2) and (-6, -1).

Answers

Answer:

3/0

Step-by-step explanation:

to find the slope use rise over run or y-y/x-x, in this case, 2-(-1)/-6-(-6)the negative and the subtraction sign cancel out resulting in something like this: 2+1/-6+6 equaling 3/0

I hope this helps have a nice day

What is the measure of the indicated angle 103° ?

Answers

Answer:

77 degrees.

Step-by-step explanation:

180-103=77

77 degrees is the measure of that temperature 180-103=77

Evaluate 2(4-1)² please

Answers

Answer:

18

Step-by-step explanation:

2×(4 - 1) ^2

2 ×3 ^2

2 ×9

18

1. If it rains on Friday, then the game is postponed.
how do i write the problem in symbolic form?

Answers

Answer:

"if it rains on friday then the game is postponed"...

Step-by-step explanation:

what is the slope of the line on the graph?​

Answers

Please post a picture than I will be glad to help

Answer:

Step-by-step explanation:

So you need to take two points off the graph. (x,y) and (x,y)

After that use those points to plug it into this equation

your gonna want to take the Y points from both and subtract from each other.

Do the same for the X points.

Y2-Y1

X2-X1

You'll then divide The Y by the X and that the Rise over Run.  When you graph that. That'll be your answer.

Write an expressions that is equivalent to 6c-2/2 +2c+11 in simplest form

Answers

Answer:

8c + 10

Step-by-step explanation:

Divide 2/2:

6c - 1 + 2c + 11

Then Collect Like Terms:

6c + 2c = 8c

-1 + 11 = 10

Final: 8c + 10

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