No it is not a function, because a function cannot have more than one output per input. When x=-3, there are two solutions shown: (-3,2) and (-3,3), therefore it cannot be a function.
It differs because dilation changes the shape but not the orientation or place the shape is located.
Let's make a system of equations to solve for this:
n + q = 84
0.05n + 0.25q = 12.80
where n = nickels and q = quarters.
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Solve for n in the first equation by subtracting q from both sides.
n = 84 - q
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Plug n into the second equation.
0.05(84 - q) + 0.25q = 12.80
Distribute 0.05 inside the parentheses.
4.2 - 0.05q + 0.25q = 12.80
Combine like terms.
4.2 + 0.2q = 12.80
Subtract 4.2 from both sides.
0.2q = 8.6
Divide both sides by 0.2.
q = 43
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Plug 43 for q in the first equation.
n + (43) = 84
Subtract 43 from both sides.
n = 41
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There are 41 nickels and 43 quarters in the piggy bank. ✅
Answer:
15x-2+7x+4=90°[being complementary angle]
22x+2=90°
22x=90°-2
22x=88
x=88/22
x=4
Answer:
B. 5
D. 9
F. 7
Step-by-step explanation:
A triangle has sides a,b and c:
And a < b+c , b < a+c and c < b+a
Here, a = 4 and b = 7
Find c?
So, 4 < 7+c , 7 < 4+c and c < 4+7=11
A. 11 False, it doesn't satisfies inequality third
B. 5 True
C. 17 False, it doesn't satisfies inequality third
D. 9 True
E. 3 Not true it doesn't satisfies second inequality
F. 7 True
