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3 years ago

PLS HELP ASAP PLS PLS PLS

Mathematics

1 answer:

Nana76 [90]3 years ago

6 0

Answer:

i think is D

i hope it’s help you but if not DO NOT FORGET STAY SAFE AT HOME

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I don't know how to do this

Dvinal [7]

$a_1=2;\ r=-\dfrac{3}{2}\\\\a_2=a_1r\to a_2=2\cdot\left(-\dfrac{3}{2}\right)=-3\\\\a_3=a_2r\to a_3=-3\cdot\left(-\dfrac{3}{2}\right)=\dfrac{9}{2}\\\\a_4=a_3r\to a_4=\dfrac{9}{2}\cdot\left(-\dfrac{3}{2}\right)=-\dfrac{27}{4}\\\\a_5=a_4r\to a_5=-\dfrac{27}{4}\cdot\left(-\dfrac{3}{2}\right)=\dfrac{81}{8}$

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4 years ago

Find the inverse of the function: f(x)= 2x-3/x+1

den301095 [7]

$f(x)=\frac{2x-3}{x+1}\\\\
y=\frac{2x-3}{x+1}\\\\
y(x+1)=2x-3\\\\yx+y=2x-3\\\\yx-2x=-3-y\\\\x(y-2)=-3-y\\\\
x=\frac{-3-y}{y-2}\\\\
f(x)=\frac{-3-y}{y-2}$

3 0

3 years ago

A random number is selected from the interval [6.35, 10]. Find the probability that the number is within a distance of 0.25 from

exis [7]

Let X be a random number selected from the interval. Then the probability density for the random variable X is

$f_X(x)=\begin{cases}\dfrac1{10-6.35}=\dfrac1{3.65}\approx0.2740&\text{if }6.35\le x\le 10\\0&\text{otherwise}\end{cases}$

8 and 10 are the only even integers that fit the given criterion (6 is more than 0.25 away from 6.35), so that we're looking to compute

P(|X - 8| < 0.25) + P(|X - 10| < 0.25)

… = P(7.75 < X < 8.25) + P(9.75 < X < 10.25)

… = P(7.75 < X < 8.25) + P(9.75 < X < 10)

(since P(X > 10) = 0)

… = 0.2740 (8.25 - 7.75) + 0.2740 (10 - 9.75)

… = 0.2055

6 0

3 years ago

??What's the balance ??

Elza [17]

I think the answer is A because the balance after 4 years is not on their and so we are trying to find the balance after three years. And after 3 years the balance is 805

8 0

3 years ago

Read 2 more answers

PLEASE HELP ASAP !!!! WILL MARK BRAINLIEST

kakasveta [241]

Answer:

Step-by-step explanation:

We can write the equation 38=4y-2 because LZ and DO are equivalent

Isolate x:

38=4y-2

38+2=4y-2+2 (add 2, addition property of equality)

40=4y

40/4=4y/4 (divide by 4, division property of equality)

10=y

3 0

3 years ago