3 years ago

To make 5 dinner rolls 1/3. How much flour is need to make 1 diner roll

Mathematics

1 answer:

spayn [35]3 years ago

8 0

You will need 1/15 to make a dinner role

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Find the missing side. Round to the nearest tenth.

AnnZ [28]

Answer:

B. 29.5

Step-by-step explanation:

Cos=A/H

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x=12/cos66

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2 years ago

Find the standard deviation of 36,18,12,10 and 9

babunello [35]

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3 years ago

If the 16 boys in the classroom is 40% what is the percent of girls

notsponge [240]

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Which statement describes if there is an extraneous solution to the equation √x-3 = x-5? A. there are no solutions to the equati

Brrunno [24]

Remember that an extraneous solution of an equation, is the solution that emerges from solving the equation but is not a valid solution.

Lets solve our equation to find out what is the extraneous solution:
 $\sqrt{x-3} =x-5$
$(\sqrt{x-3})^2 =(x-5)^2$
$x-3=x^2-10x+25$
$x^2-11x+28=0$
$(x-4)(x-7)=0$
$x-4=0$ and $x-7=0$
$x=4$ and $x=7$

So, the solutions of our equation are $x=4$ and $x=7$ . Lets replace each solution in our original equation to check if they are valid solutions:
- For $x=7$
$\sqrt{x-3} =x-5$
$\sqrt{7-3} =7-5$
$\sqrt{4} =2$
$2=2$
We can conclude that 7 is a valid solution of the equation.

- For $x=4$
$\sqrt{x-3} =x-5$
$\sqrt{4-3} =4-5$
$\sqrt{1} =1$
$1 \neq 1$
We can conclude that 4 is not a valid solution of the equation; therefore, 4 is a extraneous solution.

We can conclude that the correct answer is: D. the extraneous solution is x = 4

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2 years ago

324 soldiers queued up such that the number of queues is equal to the number of soldiers in each queue. find the number of queue

Yanka [14]

I think so answer will be 164.

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3 years ago