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Assoli18 [71]
2 years ago
14

Need help with these questions please

Mathematics
1 answer:
butalik [34]2 years ago
4 0
Help me with these instead

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Which equation can be used to find x, the length of the hypotenuse of the right triangle?
zysi [14]

Answer:

Hypotenuse ^2= long leg^2 + short leg^2.

Step-by-step explanation:

THIS EQUATION ONLY WORKS FOR A RIGHT TRIANGLE

3 0
3 years ago
Read 2 more answers
You have 23 coins, including nickels, dimes, and quarters. if you have two more dimes than quarters, and the total value of the
Tanzania [10]
You can write three equations in the numbers of nickels (n), dime (d), and quarters (q).
  n + d + q = 23 . . . . . . . there are 23 coins total
  0n +d -q = 2 . . . . . . . . .there are 2 more dimes than quarters
  5n +10d +25q = 250 . .the total value is $2.50

The collection includes 11 nickels, 7 dimes, and 5 quarters.

_____
I used the matrix function of my calculator to solve these equations. You can find q by subtracting from the last equation five times the sum of the first two equations.
  (5n +10d +25q) -5((n +d +q) +(d -q)) = (250) -5(23 +2)
  25q = 125 . . . . . . . simplify
  q = 5
From the second equation,
  d = q +2 = 7
And from the first,
  n = 23 -5 -7 = 11
7 0
2 years ago
Read 2 more answers
Y = 2x^2
GarryVolchara [31]

Answer:

y = 2x^2 is a parabola opening up with it's vertex at (0,0)... y=3x^2 -4 is also a parabola opening up, but it is 'thinner' in that it rises in y faster and it's vertex is at (0,-4)

Step-by-step explanation:

all equations of the type y = ax^2 + b are parabolas centered on the y-axis, soo the vertex is always on (0,b)

If a is positive then the parabola opens up,

the bigger a is, the 'thinner' the graph is, i.e. the faster the graph rises

the value of b determines the location of the vertex, if b is added, then the vertex rises over the x-axis, if b is subtracted then the vertex is below the x-axis

8 0
3 years ago
Could someone please help me on this
leonid [27]
The dependent variable would be b (affected by the change of n) and the independent variable would be n (affects b). The equation would be
b = 12n.
3 0
3 years ago
Which ordered pair is in Quadrant III?
Scilla [17]
(-2,-3) 
I. (+,+)
II. (-,+)
III. (-,-)
IIII. (+,-)
4 0
3 years ago
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