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3 years ago

Please help 14 points !!

Mathematics

2 answers:

Marrrta [24]3 years ago

7 0

Answer:

Step-by-step explanation:

saw5 [17]3 years ago

5 0

Answer:

there is no real number solution

Step-by-step explanation:

Given

x² + 6x = - 10

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = - 10 + 9

(x + 3)² = - 1 ( take the square root of both sides )

x + 3 = ± $\sqrt{-1}$

there is no real number whose square is - 1

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Let f(x)=x^3 and g(x)=1/3x. Use the composition of functions to determine if f(x) and g(x) are inverse functions. Drag and drop

Alex

Answer:

f(x)=3x-9

Step-by-step explanation:

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7 0

2 years ago

Round 8,764 to the nearest hundred

Zigmanuir [339]

Answer: 8,800

Step-by-step explanation:

Since the hundredth place is 764 we will round up to 800

which will give you 8,800!

Tip: Rounding the number up only takes place if the last two digits in the number are 50 or above.

If not, Round down if the last two digits in the number are 49 or below.

IF the last digits are 00 no rounding takes place.

5 0

3 years ago

Read 2 more answers

A bus is travelling from Addis Ababa to Ambo. It travels 43 km in the first hour

zhuklara [117]

<h3>Answer: 43 km per hour</h3>

==================================================

Work Shown:

total distance = 43+40+46 = 129 km

total time = 1+1+1 = 3 hours

average speed = (total distance)/(total time)

average speed = (129 km)/(3 hrs)

average speed = (129/3) (km/hr)

average speed = 43 km per hour

8 0

3 years ago

Read 2 more answers

Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following p

igor_vitrenko [27]

The required probability of success is given by 0.98906500

Assume the random variable X has a binomial distribution with the given probability of obtaining a success.
P(X<5), n=6, p=0.3

<h3>What is binomial distribution?</h3>

In binomial distribution for number trials we are investigating the probability of getting a success remain the same.

n = number of trails,
p = probability of success
x = the number of success

p(x<5) = P(x=0)+ p(x=1) + p(x=2)+p(x=3)+p(x=4)

= $\binom{6}{0}(0.3)^0(1-0.3)^6+\binom{6}{1}(0.3)^1(1-0.3)^5+\binom{6}{2}(0.3)^2(1-0.3)^4+\binom{6}{3}(0.3)^3(1-0.3)^3+\binom{6}{4}(0.3)^4(1-0.3)^2$

p(x<5) = 0.98906500

Thus the required probability of success is given by 0.98906500

Learn more about Binomial distribution here:
brainly.com/question/14565246

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3 0

3 years ago

What’s the derivative of the function: A) f(x)= 1/x , in point 2. B) f(x)= 5x^2 , in point 3

bija089 [108]

Using the power rule, the derivatives are given as follows:

a) $f^{\prime}(2) = -\frac{1}{4}$ .

b) $f^{\prime}(3) = 30$ .

<h3>What is the power rule for a derivative?</h3>

Suppose we have a power function given by:

$f(x) = x^n$

The derivative of the function is given by:

$f^{\prime}(x) = n \times x^{n-1}$

Item a:

The function is:

$f(x) = \frac{1}{x} = x^{-1}$

Then the derivative is:

$f^{\prime}(x) = -x^{-2} = -\frac{1}{x^2}$

When x = 2, the derivative is:

$f^{\prime}(2) = -\frac{1}{4}$

Item b:

The function is:

$f(x) = 5x^2$

Then the derivative is:

$f^{\prime}(x) = 10x$

When x = 3, the derivative is:

$f^{\prime}(3) = 30$

More can be learned about derivatives at brainly.com/question/2256078

#SPJ1

5 0

2 years ago