please help with maths !

Answer:

Step-by-step explanation:

sinC = 12/13

cosA = 12/13

Answer:

markup 75%

Step-by-step explanation:

The difference in prices is $70-$40=$30.

So, we need to find what percentage of 40 is 30. We do this by dividing: 30/40=0.75, which is 75%. So, the markup is 75%.

In the equation y=mx+c m= the gradient of the line and our m=5 so gradient of the line is 5

The gradient of line L is 5

"y = mx + c, where m is the slope and c is the y-intercept."

For given question,

We have been given an equation of the line L  y = 5x + 12

Comparing above equation with the slope-intercept form of the line,

we have m = 5 and c = 12

Here, slope of the line L is 5

We know that the slope of the line is the  the change in the y coordinate with respect to the change in the x coordinate of the line.

This means, the gradient of the line L is 5

Therefore, the gradient of line L is 5

Learn more about the gradient of the line here:

https://brainly.com/question/11693181

#SPJ2

I think the answer is for

1 book (x = 1)

1150+25(1)= 1175

For 2 books (x - 2)

1150+25(2) = 1200

Next, to find the change in total cost, subtract these 2 answers:

1200 - 1175 = 25

Answer:

2010.62

Step-by-step explanation:

the formula to find a cylinders volume is r and h so you just divide 14 and get 8, then you get the 10 and you solve for how you would usually get your cylinder volume. which is  V=πr2h=π·82·10≈2010.62

Answer:

V=1539.38

Step-by-step explanation:

V=πr2h=π·7^2·10≈1539.3804

or if you just want shortened version

V=π·7^2·10≈1539.3804

hope this helps!

Answer:

2.4.5675/625.92 i will help no f1

Step-by-step explanation:

I got 47.5 for this, not sure if its right though.

Answer:

41°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

let x be the missing angle, then sum the angles and equate to 180°, that is

87° + 52° + x = 180°

139° + x = 180° ( subtract 139° from both sides )

x = 41°

Answer:

It will be 0.5 repeating so 0.555 because the 5 is repeating

9514 1404 393

Answer:

  0.56

Step-by-step explanation:

5/9 is the repeating decimal fraction 0.55555...

Rounded to the nearest hundredth, it is ...

  5/9 ≈ 0.56

Answer:

Is that your answer

Answer:

3

Step-by-step explanation:

1/6 of 18 is 3/18, and 2/3 of 18 is 12/18

So 3/18 + 12/18= 15/18

18-15=3

Hope this helps.

Answer:

b is the answer okkkkkkkkkkkkkkkk

Answer:

$6000

Step-by-step explanation:

Answer: $7,000

Step-by-step explanation:

Confirmed

Answer:

7. Each sweatshirt is $60

8. Table is    3,60 and   5, 100  and   8,160  and   9,180  and     12,240

9. You would graph table by plotting the x,y coordinates of each point on a graph and connecting the dots to show linear relationship

Step-by-step explanation:

Answer:

406

the correct answer this the correct way

Answer:

the answer

Step-by-step explanation:

Answer:

a) yes

b) could not understand

Answer:

yes

Step-by-step explanation:

the graph is spring through the graph

Answer:

14/11

Step-by-step explanation:

cause when u divide you have to switch the second fraction; it's called the reciprocal.

do crossed division and you'll get 14/11.

Answer:

1 1/2

Step-by-step explanation:

1 4/5 ÷ 1 1/5

convert to full fractions:

9/5 ÷ 6/5

9/5 x 5/6 = 45/30 = 1 1/2

Answer:

At a sleepover, Karen, Jennifer, Alice and Kyle ate 8/4 slices of pizza. Later that night, everyone realized that they needed to know how much pizza they ate in total. Can you help?

Step-by-step explanation:

8/4 is 2 and there are 4 people

so basically 2*4 is 8

lol simple

Answer:

Step-by-step explanation:

Domain: all real numbers

Range: y<0

i think this is right, sorry if it is wrong

Answer:

[tex] \frac{1}{8} [/tex]

Step-by-step explanation:

[tex] \frac{3}{8} \times \frac{2}{6} \\ \frac{1}{8} [/tex]

Answer:

[tex]\frac{1}{8}[/tex]

Step-by-step explanation:

solve:

[tex]\frac{3}{8}[/tex] × [tex]\frac{2}{6}[/tex] = [tex]\frac{6}{48}[/tex]

simplify:

[tex]\frac{6}{48}[/tex] = [tex]\frac{1}{8}[/tex]

Step-by-step explanation:

Evelyn: Y=89x + 19

Brenda: Y=87x + 21

Punch in numbers for X until you get the same for both. Remember that X is hours and Y is total. the numbers with no letters is the fixed booking amount. cheers. Good luck :)

Answer: 2.456 x 10^11

Step-by-step explanation:

You move the decimal to the left until there’s no more zeroes

Answer:

there :D

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

2.456 ×  10  to the power of 11

Answer:

B

Step-by-step explanation:

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

-8+6x+5x-2=11x-10

when there is a number in front of () you multiple every number that is inside the ()

She would travel 17,000

Step-by-step explanation:

Answer:

2,160

Step-by-step explanation:

Answer:

2160 quarts in 36 hours would be made

Step-by-step explanation:

120÷2=60

60×36=2160

Answer:

Smallest angle = 30

Step-by-step explanation:

Ratio = 1 : 2 : 3

Angles are  x ,2x , 3x

Sum of all angles of triangle = 180

x +2x +3x = 180

           6x = 180

            x = 180/6

           x = 30

Answer:

[tex] \huge \boxed{ \boxed{ \tt - 5 {x}^{2} + 27 x- 2}}[/tex]

Step-by-step explanation:

[tex] step - 1 : define[/tex]

A-5B=2x+3-5(x²-5x+1)

[tex]step - 2 : solve[/tex]

and

we are done

Answer: 15.1

Step-by-step explanation: subtracting a negative (ex. 1 - (-1)) just change to addition (prev. ex. would be 1+1) (also adding decimals is like adding normal numbers just remember the place values