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2 years ago

7

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

1 answer:

bearhunter [10]2 years ago

5 0

No fewer than four female volunteers: x≥ 4.

A comedian needs up to ten volunteers: x+y ≤10.

y≥0

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Find an exponential function that passes through each pair of points.<br><br>(2,1.75) & (-2,28)

dusya [7]

Answer:

$f(x) = 7\, ((1/2)^{x})$ .

Step-by-step explanation:

An exponential function is typically in the form $f(x) = a\, (b^{x})$ , where $a$ and $b$ ( $b > 0$ ) are constants to be found.

In this question:

$f(2) = 1.75$ means that $a\, (b^{2}) = 1.75$ .

$f(-2) = 28$ means that $a\, (b^{-2}) = 28$ .

Divide one of the two equations by the other to eliminate $a$ and solve for $b$ .

The number of the right-hand side of the second equation is larger than that of the first equation. Hence, divide the second equation with the first:

$\displaystyle \frac{a\, (b^{-2})}{a\, (b^{2})} = \frac{28}{1.75}$ .

$\displaystyle b^{-4} = 16$ .

$b^{-1} = 2$ .

$\displaystyle b = \frac{1}{2}$ .

Substitute $b = (1/2)$ back into either equation (for example, the first equation) and solve for $a$ :

$a\, ((1/2)^{2}) = 1.75$ .

$a = 7$ .

Substitute $a = 7$ and $b = (1/2)$ into the other equation. That equation should also be satisfied.

Therefore, this function would be:

$f = 7\, ((1 / 2)^{x})$ .

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2 years ago

What measure describe a isosceles triangle

Shkiper50 [21]

it has 2 equal sides and 1 unequal side

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3 years ago

Who ever answers gets points

MAXImum [283]

Hello! How are you today?

6 0

2 years ago

Monica has 8 more than 3 times the number of marbles Regina has.if Regina has r marbles,how many marbles does Monica have?

jarptica [38.1K]

Monica has +8(3 times (Regina))or

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3 years ago

7x+3+6x+11 i need help solving this problem

____ [38]

Step-by-step solution:

7x + 3 + 6x + 11 = 0

7x + 6x + 11 + 3 = 0

13x + 11 + 3 = 0

13x + 14 = 0

13x = 0 - 14

13x = -14

x = -14 / 13

x = -1.077 approx.

Hope it helped,

BioTeacher101

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2 years ago