3 years ago

I need help with #4 and #5

Mathematics

1 answer:

GrogVix [38]3 years ago

6 0

I can’t readdddddddddddddddd send it back

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The solution of the equation (x+3)^2=7 please help!!

Elodia [21]

Root both sides of the equation

x+3= plus or minus root 7

Subtract 3 from both sides.

$x_{1} = \sqrt{7} -3\\\\ x_{2}= - \sqrt{7} -3$

6 0

4 years ago

7. (3 pt) What is the distance between points (−2, 8) and (6, −2)? Round to the nearest tenth of a unit.

inysia [295]

The Exact answer is 12.80625, Rounded to the tenth is 12.8

8 0

3 years ago

Factor the expression completely by first taking out a common factor<br> 3x^2 + 27x + 24

Marina CMI [18]

Answer:

=3(x+8)(x+1)

Step-by-step explanation:

3(x^2+9x+8)

3(x^2+8x+1x+8)

3[(x^2+8x)+(1x+8)]

3[x(x+8)+1(x+8)]

=3(x+8)(x+1)

3 0

3 years ago

Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *

stealth61 [152]

Answer:

CP = Rs 500

Step-by-step explanation:

Given that,

Selling price of a book, SP = Rs 550

Profit percent = 10%

We need to find the cost price of the book. The formula for profit percent is given by :

$P\%=\dfrac{SP-CP}{CP}\times 100\\\\\dfrac{10}{100}=\dfrac{550-CP}{CP}\times 100\\\\\dfrac{1}{10}=\dfrac{550-CP}{CP}\\\\CP=5500-10CP\\\\CP+10CP=5500\\\\11CP=5500\\\\CP=500$

So, the cost price of the book is Rs 500.

6 0

3 years ago

I rlly need helpppp

Anit [1.1K]

???? more info needed

5 0

3 years ago