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Alexandra [31]
3 years ago
9

7 Rahat has a recipe for muffins that

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0

Answer:

the answer is 1

Step-by-step explanation:

if you are splitting the recipe in half then just split the amount of the ingredients in half too

half of the 2 cups of flour would be 1 cup of flour

you would also get 9 muffins instead of 18 muffins

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Write the expression as the sine, cosine, or tangent of an angle. sin 8x cos x - cos 8x sin x
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Sin(8x)cos(x) - cos(8x)sin(x) 

identity being used: -cos(s)sin(t) + cos(t)sin(s) = sin(s-t)
sin(8x)cos(x) - cos(8x)sin(x) --> simplified = sin(8x-x)
sin(8x-x) is simplified to --> sin (7x)
sin(8x)cos(x) - cos(8x)sin(x) = sin(7x)
4 0
4 years ago
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A rectangle has a perimeter of 2x^2+8x-10 the length of the rectangle is 3x-1. What is the width as an expression
4vir4ik [10]

Answer:   The width is x^{2} + 1x -4

Step-by-step explanation:

We know to find the perimeter we have to add the distance around the rectangle.The distance can also be sought as 2 times the length  plus times the width.

So as a formula is like  P = 2l + 2w  where P is the perimeter.

We are given the perimeter so we can plot it into the formula and also plot in the length because it says the length is 3x -1  

2x^{2}+8x - 10 = 2(3x -1) + 2w    Now we have to solve for w .Break it down

(2x^{2} + 8x -10) = (6x -2 )+ 2w       subtract 6x - 2 from both sides  

(2x^{2} + 8x -10) - (6x -2) = 2w        

(  2x^{2} + 2x -8) = 2w  now divide both sides by 2  

\frac{2x^{2} +2x-8 }{2}  = w    One the left side factor the numerator  

\frac{2(x^{2} +1x-4)}{2}   = w   Now multiply both sides by 2  

  w =( x^{2} + 1x-4 )

The width is x^2 + 1x -4

4 0
3 years ago
25 POINTS Please help me asap I will really appreciate it !
nydimaria [60]

3.  g(x) = (x+2)/ |x+2|  the denominator cannot be 0

   |x+2| cannot be 0  

x cannot equal -2

Domain all real numbers but -2

g(-1) = (-1+2)/ |-1+2| = 1/|1| = 1

4.  h(x) = (x-4)/(x^2+5x-36)

factor the denominator

h(x) = (x-4)/(x+9) (x-4)  the denominator cannot be zero  do not cancel, this is a hole

x+9 cannot equal zero so x cannot equal -9

x-4 cannot equal 0 so x cannot equal 4

Domain all real numbers but -9 and 4

h(-1) = (-1-4)/((-1)^2+5(-1)-36) = -5/(1-5-36) = -5/-40 = 1/8


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Two distinct real solutions
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