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Ira Lisetskai [31]
3 years ago
7

-5=9+c/4 please help me with this problem

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0
Subtract 9 from both sides. Then you have -14=c/4. Multiply the number by 4. You now have -56=c. :)
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Find the missing angle:
sergey [27]

Answer:

40

Step-by-step explanation:

Going from left to right

We need to find the angle from the first triangle

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80+25+x = 180

Combine like terms

105+ x = 180

Subtract 105 from each side

105-105+x = 180-105

x = 75

Then we have 3 angles that make a straight line and a straight line is 180

x + 50 + y = 180

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Combine like terms

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y = 55

We now have the triangle on the right

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55+85+ ? = 180

Combine like terms

140+ ? = 180

Subtract 140 from each side

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4 0
3 years ago
Which statement is true about the coordinates of points M and N?
Dominik [7]
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6 0
3 years ago
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Prove the trigonometric identity
Annette [7]

Answer:

Proved See below

Step-by-step explanation:

Man this one is a world of its own :D Just a quick question are you a fellow Add Math student in O levels i remember this question from back in the day :D Anyhow Lets get started

For this question we need to know the following identities:

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Lets solve the bottom most part first:

1-\frac{1}{1-sec^2x} \\\\

Take LCM

1-\frac{1}{1-sec^2x} \\\\\frac{1-sec^2x-1}{1-sec^2x} \\\\\frac{-sec^2x}{1-sec^2x} \\\\\frac{-(1+tan^2x)}{-tan^2x}

now break the LCM

\frac{-1}{-tan^2x}+\frac{-tan^2x}{-tan^2x}\\\\\frac{1}{tan^2x}+1\\\\cot^2x+1

because 1/tan = cot x

and furthermore,

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now we solve the above part and replace the bottom most part that we solved with cosec^2x

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4 0
3 years ago
Leo wants to paint a moral that covers a wall with an area of 1440 sq ft. the height of the wall is 2 fifths of its length. What
DerKrebs [107]
The length of the wall will be 288.... I think
4 0
3 years ago
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In the given graph, line AB is reflected over the:
melamori03 [73]
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So, from knowing this information of graphs, we now know that \left[\begin{array}{ccc}AB\end{array}\right] are reflecting over the (x-axis) which is the line that is (horizontal).

Your correct answer would be . . . 

\boxed{\boxed{x-axis \ would \ be \ your \ answer}}

Hope this helps you!
~Jurgen
5 0
4 years ago
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