Ask question

Ask question

All categories

2 years ago

13

your a teacher pick whitch on is right abram 50 nadeen 18 which is right Explain what the student did wrong who has the incorrec

t answer 8+2•(6-1)

1 answer:

OverLord2011 [107]2 years ago

5 0

*Answer* : 50

*Explanation* :

8+2•(6-1)
10•(6-1)
10•6 10•-1
60 -10 = 50
I hope this helps :))

You might be interested in

Find the value of x in the figure.

Tresset [83]

It’s also 64 because the angles are congruent

8 0

2 years ago

Read 2 more answers

If you have a population standard deviation of 9 and a sample size of 144, what is your standard error of the mean?

andrezito [222]

So your answer would be 1296

6 0

2 years ago

Read 2 more answers

Example 4: Converting Rational Numbers to Decin

IceJOKER [234]

Answer: its 4

Step-by-step explanation:

gg

8 0

2 years ago

Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function.

seropon [69]

Answer:

$h'(x)=\frac{3r^{2}}{2\sqrt{r^3+5}}$

Step-by-step explanation:

1) The Fundamental Theorem of Calculus in its first part, shows us a reciprocal relationship between Derivatives and Integration

$g(x)=\int_{a}^{x}f(t)dt \:\:a\leqslant x\leqslant b$

2) In this case, we'll need to find the derivative applying the chain rule. As it follows:

$h(x)=\int_{a}^{x^{2}}\sqrt{5+r^{3}}\therefore h'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left (\int_{a}^{x^{2}}\sqrt{5+r^{3}}\right )\\h'(x)=\sqrt{5+r^{3}}\\Chain\:Rule:\\F'(x)=f'(g(x))*g'(x)\\h'=\sqrt{5+r^{3}}\Rightarrow h'(x)=\frac{1}{2}*(r^{3}+5)^{-\frac{1}{2}}*(3r^{2}+0)\Rightarrow h'(x)=\frac{3r^{2}}{2\sqrt{r^3+5}}$

3) To test it, just integrate:

$\int \frac{3r^{2}}{2\sqrt{r^3+5}}dr=\sqrt{r^{3}+5}+C$

5 0

2 years ago

A rectangle has a perimeter equal to 24 if we consider its width x how could we talk about its length y in terms of x what are t

riadik2000 [5.3K]

2x + 2y must equal 24. 24 - 2x = 2y and 24 - 2y = 2x. Therefore, 12 - y = x. x could be able to add with y to get 12.

example: x = 4, y = 8. (4 + 4 + 8 + 8 = 16 + 8 = 24)

x = 9, y = 3. (9 + 9 + 3 + 3 = 24)

x = 5, y = 7. (5 + 5 + 7 + 7 = 24)

5 0

3 years ago