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Andrej [43]
3 years ago
13

How to find the area of triangle?​

Mathematics
1 answer:
ikadub [295]3 years ago
5 0

Answer:

(i). \\ { \tt{area =  2(\frac{1}{2}  \times base \times height}} )\\  =   4 \times 3 \\  = 12 \: sq \: units \\  \\ (iii). \\  =  \frac{1}{2}  \times 8 \times  6 \\  = 24 \: sq \: units \\  \\ (ii). \\  =  \frac{1}{2}  \times 12 \times 5 \\  = 30 \: sq \: units

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4 subtracted from the product of a number n multiplied by 2 is greater than or equal to 20. which of the following equations mat
Doss [256]
2n - 4 ≥ 20 is your answer 
6 0
3 years ago
For this right triangle, what is the cosine of angle C?
ollegr [7]

Answer:

A  cos C = 12/13

Step-by-step explanation:

cos theta = adjacent side/ hypotenuse

cos C = BC/AC

But we don't know BC, but we can find it using the Pythagorean theorem

a^2 +b^2 = c^2

5^2 +BC^2 = 13^2

25 + BC ^2 =169

Subtract 25 from each side

BC^2 = 169-25

BC ^2 = 144

Taking the square root of each side

BC =12

cos C = 12/13

3 0
3 years ago
1. is he equation true , false, or open
RideAnS [48]

Question 1:

For this case we have the following equation:

 5x ^ 2 = 6x + 11

We observe that the equation is a polynomial of the second degree.

Therefore, the equation has two possible solutions.

The variable of the equation for this case is x.

In this case, we have an open equation because we have a variable.

Rewriting the equation we have:

5x ^ 2 - 6x - 11 = 0

Answer:

open, there is a variable.


Question 2:

For this case we have the following equation:

 2-8x = -6

From here, we must clear the value of x.

For this, we follow the following steps:

1) Pass the value of 8x adding:

2 = -6 + 8x

2) Pass the value of 6 adding:

2 + 6 = 8x

3) Add the values ​​on the same side of equality:

 8x = 8

4) Pass the 8 to divide:

x = \frac{8}{8} = 1

Answer:

The value of x is given by:

x = 1


Question 3:

For this case we have the following equation:

 y = x-4

The ordered pair solution is the one that satisfies both sides of the equation.

For the point (6, 2) we have:

x = 6  y = 2

Substituting values ​​we have:

2 = 6-4  2 = 2

We observe that both sides of the equation are equal.

Therefore, the ordered pair solution is (6, 2)

Answer:

An ordered pair that is a solution of the equation y = x-4 is:

(6, 2)

3 0
3 years ago
Read 2 more answers
Don’t understand 23 and 24
enot [183]

Answer:

23.  16x² + 4x + 0.25

24.  16x² - 4x + 0.25

Step-by-step explanation:

Given the functions f(x) = 4x + 0.5 and g(x) = 4x - 0.5, questions 23 and 24 are asking you to square the entire function.  So, you will take the expression given in each function and square it:

(f(x))² = (4x + 0.5)(4x + 0.5) Using FOIL:

(4x*4x) + (4x*0.5) + (4x*0.5) + (0.5*0.5)

16x² + 2x + 2x + 0.25 = 16x² + 4x + 0.25

(g(x))² = (4x - 0.5)(4x - 0.5) Using FOIL:

(4x*4x) - (4x*0.5) - (4x*0.5) + (0.5*0.5)

16x² - 2x - 2x + 0.25 = 16x² - 4x + 0.25

8 0
3 years ago
How can you write the equation for a linear function if you know only two ordered pairs for the function?
Veronika [31]

Step-by-step explanation:

m

one set of ordered pair

b

6 0
3 years ago
Read 2 more answers
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