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3 years ago

Please make sure this is the right answer!!

Mathematics

2 answers:

Colt1911 [192]3 years ago

6 0

Answer:

Step-by-step explanation:

It is 15 3/4 Because 2 negatives equal a positive

and that means u add ur whole numbers. The Denominator stays the same the top number gets added or multiplied

if its right Mark brainliest u dont have to

Nitella [24]3 years ago

6 0

Answer:

this is the ans

Step-by-step explanation:

hope it helps you

can u mark me as brainliest pls

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The equation of a line is −2x 5y=−20−2x 5y=−20. what is the x-intercept of the line? enter your answer in the box.

kotegsom [21]

The criteria to find out the x-intercept of the line is we find out the result when
y = 0

- 2x + 5y = -20
- 2x + 0 = -20

x = -20 / -2
x = 10

hope this helps

5 0

3 years ago

Select the correct expressions. 1 Identify each expression that represents the slope of a tangent to the curve y= * +1 at any po

Olegator [25]

The expressions which represents the slope of a tangent to the curve $y=\frac{1}{x+1}$ at any point (x, y) are:

$f'(x) =limh \rightarrow 0\frac{-h}{h(x+1)(x+h+1)}\\\\f'(x) =limh \rightarrow 0\frac{-h}{x^2h+2xh+xh^2+h^2 +1}$

<h3>The slope of a tangent to the curve.</h3>

Mathematically, the slope of a tangent line to the curve is given by this equation:

$f'(x) =limh \rightarrow 0\frac{f(x+h)-f(x)}{h}$

Given the function:

$f(x)=y=\frac{1}{x+1}$

When (x + h), we have:

$f(x+h)=y=\frac{1}{x+h+1}$

Next, we would find the derivative of f(x):

$f'(x) =limh \rightarrow 0\frac{\frac{1}{x+h+1} -\frac{1}{x+1}}{h}\\\\f'(x) =limh \rightarrow 0\frac{x+1 -(x+h+1)}{h(x+1)(x+h+1)}\\\\f'(x) =limh \rightarrow 0\frac{x+1 -x-h-1}{h(x+1)(x+h+1)}\\\\f'(x) =limh \rightarrow 0\frac{-h}{h(x+1)(x+h+1)}\\\\f'(x) =limh \rightarrow 0\frac{-h}{x^2h+2xh+xh^2+h^2 +1}\\\\f'(x) = \frac{-1}{(x+1)(x+1)} \\\\f'(x) = \frac{-1}{(x+1)^2}$

Read more on slope of a tangent here: brainly.com/question/26015157

#SPJ1

5 0

3 years ago

Carmen paid $10.50 for a T-shirt at the mall. it was on sale for 30% off. what was the original price before the discount

Kruka [31]

The answer is 35 because if you do 30 over 100 it will be 0.3 so then you are going to take the 10.50 and divide that to 0.3 and that's how you get your answer your answer is going to be 35

8 0

3 years ago

3 3/4)÷(−2 1/2)=<br> please answer fast!

Zina [86]

Answer:

-1.5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The proportion of American births that result in a birth defect is approximately 1/33 according to the Centers for Disease Contr

faltersainse [42]

Answer:

c. binomial distribution with n = 5 and p = 1/33.

Step-by-step explanation:

For each birth, there are only two possible outcomes. Either it results in a defect, or it does not. The probability of a birth resulting in a defect is independent of other births. So we use the binomial probability distrbution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The proportion of American births that result in a birth defect is approximately 1/33 according to the Centers for Disease Control and Prevention (CDC).

This means that the probability of a birth resulting in a defect is $p = \frac{1}{33}$

A local hospital randomly selects five births.

This means that $n = 5$

So the correct answer is:

c. binomial distribution with n = 5 and p = 1/33.

8 0

3 years ago