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bixtya [17]
3 years ago
15

If y=3x 2 find the value of y when x=-3

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0
Y=3(-3) x 2
y= -9 x 2
y=-18
.............
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devlian [24]

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2 years ago
Find S5 for a geometric series for which a1=81 and r=1/9.
Minchanka [31]

ANSWER

S_5=91\frac{10}{81}




EXPLANATION


The sum of the first n terms of a geometric sequence is given by;


S_n=\frac{a_1(1-r^n)}{1-r} ,-1


Where n, is the number of terms and a_1 is the first term.


When n=5, we have a_1=81, we get;


S_5=\frac{81(1-(\frac{1}{9})^5)}{1-\frac{1}{9}}


S_5=\frac{81(1-\frac{1}{59049})}{1-\frac{1}{9}}


S_5=\frac{81(\frac{59048}{59049})}{\frac{8}{9}}




S_5=\frac{7381}{81}


S_5=91\frac{10}{81}




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3 years ago
2 square5 + 5 square5
lora16 [44]

Answer:

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3 0
3 years ago
Given the polynomail function below, find f(-5) f(x)=x^2-2x-7
SIZIF [17.4K]
F(-5) = -5^2 - 2*(-5) - 7 = 25 - (-10) - 7 = 25 + 10 - 7 = 25 + 3 = 28
8 0
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Please help I’ll give brainiest!
Marizza181 [45]

Answer: h(3)= -4 h(-3)=-16

Step-by-step explanation:

Plug in 3 and -3 for x and solve

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4 0
3 years ago
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