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djyliett [7]
4 years ago
5

Help with question 9 I don't get it

Mathematics
2 answers:
Alik [6]4 years ago
5 0
I think that x may equal to -3. Because the sum of a triangle is always 180. 55+54=109 and 180-109=71 and -3+74=71
Margarita [4]4 years ago
5 0
Instead of = 360 it should be 180

X+183=180
X= -3

X is -3 that does not make the angle negative 3X -3+74 which is 71 for the angle but it is equal to -3
If you add 55+54+71= 180
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Each side of the smaller square in the figure below is n inches long, and each side of the larger square is p inches longer than
lana66690 [7]

Answer:

2np + p²

Step-by-step explanation:

The general formula for the area of a square is A = s², where s = the length of one side of the square.  In the case of the smaller square the area would be: n x n = n².  Since the side of the larger square is 'p' inches longer, the length of one side is 'n + p'.  To find the area of the larger square, we have to take the length x length or (n +p)².

Using FOIL (forward, outside, inside, last):

(n + p)(n+p) = n² + 2np + p²

Since the area of the first triangle is n², we can subtract this amount from the area of the larger square to find out how many square inches greater the larger square area is.

n² + 2np + p² - n² = 2np + p²


8 0
3 years ago
Write the formula for the volume of a square prism, V = s-h, in terms of h. Then find the height h of a square prism with volume
vodomira [7]

Answer:

h = \frac{3V}{s^2}

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Step-by-step explanation:

Volume of prism in terms of h (height):

V = \frac{1}{3}s^2h

V = \frac{s^2h}{3}

Multiply both sides by 3

V*3 = \frac{s^2h}{3}*3

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Divide both sides by s^2

\frac{3V}{s^2} = \frac{s^2h}{s^2}

\frac{3V}{s^2} = h

h = \frac{3V}{s^2}

Find height (h) given V = 60 cm³ and side length (s) = 6 cm. Plug the values into the formula above:

h = \frac{3(60)}{6^2}

h = \frac{180}{36}

h = 5

Height = 5 cm

6 0
4 years ago
Madeline was completing the square, and her work is shown below. Identify the line where she made her mistake.
erastovalidia [21]
In Line 2, Madeline subtracted one from -7, she was supposed to add 1. UR WELCOME!!!
3 0
3 years ago
Simplify the expression completely and show work if you can pls.
jenyasd209 [6]

Answer:

12^2/3 x 12^4/3

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=144

4 0
3 years ago
Evaluate 4 2/3-(-1 4/5)
Blababa [14]
Find a common denominator by multiplying the two different denominators by each other to get 15. 2/3 then becomes 10/15 and 4/5 becomes 12/15.

You now have 4 and 10/15 minus negative 1 and 12/15. Subtracting a negative number results in addition, so it's 4 and 10/15 PLUS 1 and 12/15. You get 5 and 22/15, which becomes 6 and 7/15.

The answer is C.
3 0
3 years ago
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