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slava [35]
2 years ago
15

Please help me grades are do today

Mathematics
1 answer:
11111nata11111 [884]2 years ago
3 0

Answer:

28

Step-by-step explanation:

sin=\frac{opp}{hyp}

cos = \frac{adj}{hyp}

cos^{-1}\left(\frac{45}{51}\right)

which is 28.07 degree

sin\left(28.07\right)=\frac{x}{51}

x= 23.99

23.99+4=h=28

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Are -4 ( x - 6) and -4 • x - 4 • 6 equivalent
tekilochka [14]

Answer:

 no

Step-by-step explanation:

Lets solve the first half.

-4 ( x - 6) = -4x + 24

Second one:

-4 times x - 4 times  6 = -4x -24

Now compare.....Not the same right??

So your answer is:  no

Hope this helps :)

7 0
3 years ago
Match each subtraction problem on the left with the equivalent simplified expression on the right.
Ahat [919]

Answer:

A-3, B-4, C-1, D-2

Step-by-step explanation:

A:

  • 5x-(3x+1)
  • Expand, 5x-3x-1
  • Combine like terms, 2x-1

B:

  • 5x-(-3x-1)
  • Expand, 5x+3x+1
  • Combine like terms, 8x+1

C:

  • -5x-(3x+1)
  • Expand, -5x-3x-1
  • Combine like terms, -8x-1

D:

  • -5x-(-3x-1)
  • Expand, -5x+3x+1
  • Combine like terms, -2x+1

4 0
2 years ago
Grant plans to evaporate enough water from 22 gallons of a 16% ammonia solution to make a 24% ammonia solution. Which equation c
shtirl [24]

Given:

22 gallons of 16% ammonia

24% ammonia

Find:

Number of gallons of water to remove

Solution:

Let n = number of gallons needed to obtain 24% ammonia

22 gallons (0.16) = n (.24)

<span>N = 14.67 gallons of water</span>

8 0
3 years ago
Read 2 more answers
Please help! I don't know how to do slopes.
fomenos

The slope of the given line in  the image is -4 , Option A is the answer.

<h3>What is the equation of a straight line ?</h3>

The equation of the straight line is given by

y =mx +c ,

Where m is the slope , C is the intercept

The line is passing through the point

(-1,8)  ,(2,-4)

The slope is given by

m = (y₂-y₁) /(x₂-x₁)

m  = (-4 - 8 )/(2 +1)

m = -12/3

m = -4

Therefore the slope of the given line in  the image is -4 , Option A is the answer.

To know more about Straight Line equation

brainly.com/question/959487

#SPJ1

3 0
1 year ago
I need to know how to subtract fractions 4 2/3 - 3/4
sergij07 [2.7K]

Answer: The answer would be 3.91666666667

3 0
3 years ago
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