I just need the extraneous root

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

$2+√(2x-3) =√(x+7) ~~~(1)\n x \ge -7\nand ~x\ge (3)/(2) \nsquaring ~(1)\n4+2x-3+4√(2x-3) =x+7\n4√(2x-3) =x+7-2x-4+3\n4√(2x-1) =-x+6\nsquaring\n16(2x-3)=x^2-12x+36\n32x-48=x^2-12x+36\nx^2-12x-32x+36+48=0\nx^2-44x+84=0\n\nx^2-2x-42x+84=0\nx(x-2)-42(x-2)=0\n(x-2)(x-42)=0\nx=2,42\nx=2 is a solution.\nwhereas ~x=42 ~is~an~extraneous ~root.\nas~2+√(2*42-3) =√(42+7) \n2+√(81) =√(49) \n2+9=7\nor 11=7\nwhich~is~not~true.$

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The cost of a pizza varies directly with thelength of the diameter. If a pizza with a12-inch diameter costs $8.64, how muchshould a pizza with a 16-inch diameter cost?
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A circle is cut from a square piece of cloth, as shown: A square, one side labeled as 52 inches has a circle inside it. The circle touches all the sides of the square. The portion of the square outside the circle is shaed 52 inches How many square inches of cloth are cut from the square?

Erin has $52 to spend at the florist. She wants to buy a vase for $11.75 and several roses for $3.50 each. What are the possible numbers of roses Erin can buy?

Answers

Answer:

12 roses

Step-by-step explanation:

$52 to spend at the florist

a vase for $11.75

roses for $3.50 each

Calculating how much left after buying the vase:

$52 - $11.75 = $40.25

To Know the possible numbers of roses Erin can buy, divide:

$40.25 ÷$3.50 = 11,75, roundind 12 roses

Final answer:

Erin can buy 11 roses.

Explanation:

To find the possible numbers of roses Erin can buy, we need to subtract the cost of the vase from the total amount of money she has. Erin has $52 to spend and the vase costs $11.75, so she will have $52 - $11.75 = $40.25 left to spend on roses. The cost of each rose is $3.50, so the possible numbers of roses Erin can buy is $40.25 ÷ $3.50 = 11 roses.

Therefore, the answer is 11 roses.

Learn more about possible numbers of roses Erin can buy here:

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Darrien is making a solid figure out of folded paper. His solid figure has six congruent faces that are all squares. What sold figure did he make?

Answers

Darrien made a cube out of the six congruent squares.

Hope this helps :)

Explain the steps you would take to write 36/10 as a decimal

Answers

When anything is divided by 10 we just move the decimal 1 place to the left So 36.0 once divided by 10 would become 3.6

To make a fraction into a decimal, divide the numerator by thedenominator.
36/10=3.6

I hope this helped you!!

Ushma and her friends went to a movie at 7:35 p.m. The movie ended at 9:20 p.m. How long was the movie? Please explain.

Answers

The movie was 1 hour 45 minutes long because one hour, of course, makes it 8:35, and add five, making it 8:40. Add tens until you get 9:20, making it 1 hour 45 minutes.

Answer:

1 hour and 45 minutes

Can some explain me how to find the answers

Answers

(a) r = the weight of Rajesh's package and m = the weight of Mohib's package:

r = 2m + 3
r + m = 15

(b) The easiest way to solve this equation would be to use substitution. The first equation says that r is equal to "2m + 3", so we can plug 2m + 3 in for the r in the second equation, and then solve for m:

$r+m=15\(2m+3)+m=15\3m+3=15\3m=12\m=4$

Now that we have m, we can plug it into one of the equations to find r:

$r=2m+3\r=2(4)+3\r=8+3\r=11$

So, the weight of Rajesh's package is 11 pounds, and the weight of Mohib's package is 4 pounds. This makes sense because both of these add up to 15 and Rajesh's package is three more than two times the weight of Mohib's package, as described in the question.

(c) Mohib's graph is the correct graph because it intersects at the correct point (4 on the Mohib axis and 11 on the Rajesh axis). The other graph shows the intersection of the two lines at the wrong point, giving the wrong weights of the two packages.

what textbook and pg # is this? I wanna be able to practice

What is 0.97333... as a fraction

Answers

$x=0.97\overline{3}\n100x=97.\overline{3}\n1000x=973.\overline{3}\n1000x-100x=973.\overline{3}-97.\overline{3}\n900x=876\nx=(876)/(900)=(73)/(75)$

the answer is 73/75 :)

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