3 years ago

In January Mr Timms class read 20 books in February his class read 15 books

Mathematics

1 answer:

Ivan3 years ago

6 0

Answer:

Step-by-step explanation:

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What is the solution of StartRoot x squared + 49 EndRoot = x + 5?

Natasha2012 [34]

$x=\frac{12}{5}$ or x= twelve-fifths

Option A is correct.

Step-by-step explanation:

We need to find the solution of:

$\sqrt{x^2+49}=x+5$

Solving:

Taking square on both sides:

$(\sqrt{x^2+49})^2=(x+5)^2\\x^2+49=x^2+2(x)(5)+25\\Simplifying:\\x^2+49-x^2-10x-25=0\\-10x+24=0\\-10x=-24\\x=\frac{-24}{-10}\\ x=\frac{24}{10}\\x=\frac{12}{5}$

Verifying the solution by putting x = 12/5 in the given equation, we get true result.

So, $x=\frac{12}{5}$ or x= twelve-fifths

Option A is correct.

Keywords: Solving Square root Equations

Learn more about Solving Square root Equations at:

#learnwithBrainly

5 0

4 years ago

Read 2 more answers

Find the integral.......

ICE Princess25 [194]

Answer:

1/5(2ln|x|+3*5^1/3)+c

Step-by-step explanation:

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3 years ago

Pls help! will give brainlist!

nataly862011 [7]

Answer:

B. (-2,3)

Step-by-step explanation:

-3x+5y = 21

x=2y-8

Substitution

-3(2y-8)+5y =21

-6y+24+5y=21

-y+24=21

-y=-3

y=3

Plug-in other equation

2*3-8=x

6-8=x

x=-2

7 0

3 years ago

I need help ASAP and I need to show the work.

jasenka [17]

Answer:the answer is e

Step-by-step explanation:

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3 years ago

Jim rolls a fair dice 54 times. How many times would Jim expect to roll a number greater than 2?

Novay_Z [31]

Answer:

36 times

Step-by-step explanation:

54:6=9

9.2=18

54-18=36

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3 years ago