Can someone help me please

Mathematics

1 answer:

irinina [24]3 years ago

8 0

Answer:

reghfjkvbnerfnhdbetuigkjoghbnurhjeuiogwr4th

Step-by-step explanation:

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If f(x)=2x and g(x)=−2x3+2x, then what is f(x)+g(x)?

Maurinko [17]

Answer:

$-2x^3+4x$

Step-by-step explanation:

I am assuming that the functions are:

$f(x)=2x\\\\g(x)=-2x^3+2x$

-----------------------

$f(x)+g(x)\\\\2x+-2x^3+2x\\\\2x+2x+-2x^3\\\\4x+-2x^3\\\\\boxed{-2x^3+4x}$

Hope this helps you!

3 0

3 years ago

Given the equation -4Square root x-3=12, solve for x and identify if it is an extranous solution

Nitella [24]

-4sqrt(x)-3 = 12 -> sqrt(x) - 3 = -3 -> sqrt(x) = 0
so x = 0, only solution, no extraneous solution

7 0

4 years ago

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The length of a rectangle is 5 m greater than the width. The perimeter is 150 m. Find the width and length.

Gre4nikov [31]

Hola Friend ✋✋✋

Let the length of rectangle be l

breadth be b

so ,

b+5 = l

perimeter = 2 × ( l+b) = 150

2b + 5 = 75

b = 35

so l = 40

7 0

3 years ago

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You order seventeen burritos to go from a Mexican restaurant, seven with hot peppers and ten without. However, the restaurant fo

Kisachek [45]

Answer:

$P=0.369$

Step-by-step explanation:

In this binomial probability case, the success is to pick a burrito with hot peppers, there are 7 out of 17, the probability is p=7/17=0.4118. The formula is

$P=_nC_kp^k(1-p)^{n-k}$

Where n is the number of burritos taken at random, k is the number of success (burrito with hot peppers), p is the probability of success. $_nC_k$ denotes the number of combinations and its formula is:

$_nC_k=\frac{n!}{k!(n-k)!}$

At least two burritos have hot peppers means having two or three burritos, these two cases are calculated and sum to get the probability of at least two burritos that have hot peppers.

$P=_nC_kp^k(1-p)^{n-k}=\frac{n!}{k!(n-k)!}p^k(1-p)^{n-k}$