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2 years ago

Plz help brainiest to the correct answer!

Mathematics

2 answers:

siniylev [52]2 years ago

6 0

$\\ \sf{:}\dashrightarrow 24\times \dfrac{3}{4}=18$

$\\ \sf{:}\dashrightarrow 24\div \dfrac{-3}{4}=-32$

$\\ \sf{:}\dashrightarrow 12-15=-3$

$\\ \sf{:}\dashrightarrow 12-(-15)=27$

$\\ \sf{:}\dashrightarrow -18\div \dfrac{-3}{4}=24$

Stolb23 [73]2 years ago

4 0

Answer:

1. x (multiplication)

2. / (division)

3. - (subtraction)

4. - (subtraction)

5. / (division)

Step-by-step explanation:

1. 24 x 3/4= 18

2. 24/-3/4=-32

3. 12- 15= -3

4. 12- (-15)= 12 + 15 = 27

5. -18 / -3/4= 24

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3 years ago

Explain in your own words what domain and range mean

a_sh-v [17]

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Hope this helps and please mark as brainliest!

3 0

3 years ago

Read 2 more answers

How do u do b??????????

horrorfan [7]

the assumption being that the first machine is the one on the left-hand-side and the second is the one on the right-hand-side.

the input goes to the 1st machine and the output of that goes to the 2nd machine.

if she uses and input of 6 on the 2nd one, the result will be 6² - 6 = 30, if we feed that to the 1st one the result will be √( 30 - 5) = √25 = 5, so, simply having the machines swap places will work to get a final output of 5.

clearly we can never get an output of -5 from a square root, however we can from the quadratic one, the 2nd machine/equation.

let's check something, we need a -5 on the 2nd, so

$\bf \underset{final~out put}{\stackrel{y}{-5}}=x^2-6\implies 1=x^2\implies \sqrt{1}=x\implies 1=x$

so if we use a "1" as the output on the first machine, we should be able to find out what input we need, let's do that.

$\bf \underset{first~out put}{\stackrel{y}{1}}=\sqrt{x-5}\implies 1^2=x-5\implies 1=x-5\implies 6=x$

so if we use an input of 6 on the first machine, we should be able to get a -5 as final output from the 2nd machine.

$\bf \stackrel{first~machine}{y=\sqrt{\boxed{6}-5}}\implies y=\sqrt{1}\implies y=1 \\\\\\ \stackrel{second~machine}{y = \boxed{1}^2-6}\implies y = 1-6\implies y = -5$