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Lisa [10]
2 years ago
6

X^2-x-42=0 Help I just need the line of symmetry

Mathematics
1 answer:
siniylev [52]2 years ago
4 0

Answer:

Step-by-step explanation:

answers:      x = 7

    x = -6

let me know if you need anymore help.

mark me brainliest please.

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A principal of $4700 is invested at 8.25% interest compounded annually. How much will the investment be worth after 7 years?
Mariana [72]

Answer:

$7562.50

Step-by-step explanation:

4700 (1.0825)^7-1

8 0
3 years ago
Find the value of x. O is the center of the circle. Round your answer to the nearest hundredth.
katrin [286]

x=5.38 . Correct option C)5.38

<u>Step-by-step explanation:</u>

Here we have , Find the value of x. O is the center of the circle. Round your answer to the nearest hundredth.  picture is attached  . Let's find out:

In the given figure , Let's draw a line from center to the point where cord of length 8 unit is touching the circle or intersecting or , where this chord finishes . This line is radius of circle and is denoted by x , So now we have a right angle triangle with dimensions as :

Perpendicular =3.6\\Base=\frac{8}{2}=4\\Hypotenuse=x

By Pythagoras Theorem ,

Hypotenuse^2=Perpendicular^2+base^2

⇒ x^2=(3.6)^2+(4)^2

⇒ x=\sqrt{(3.6)^2+(4)^2}

⇒ x=\sqrt{12.96+16}

⇒ x=\sqrt{28.96}

⇒ x=5.38

Therefore , x=5.38 . Correct option C)5.38

6 0
3 years ago
What is the volume of the following rectangular prism?
sergij07 [2.7K]

Answer:

33 cubic unit

Step-by-step explanation:

Volume of the prism = base area * height

                                  = 9 * 3 2/3            {Change improper to proper fraction}

                                  = 9*\frac{11}{3}\\\\= 3* 11\\\\= 33 unit^{3}

8 0
3 years ago
In square ABCD, AC = 6x + 10, and BD = 10x + 2. What is the length of AC?
Oksanka [162]

Answer:

B) 22

Step-by-step explanation:

AC = BD

6x+10 = 10x+2

simplify:

subtract 6x and 2 from both sides:

4x = 8

x = 2

then:

AC = 6(2)+10 = 22

6 0
3 years ago
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Convert 20 milligrams into grams.<br> Can somebody help ?
Fantom [35]

Answer:

0.02

Step-by-step explanation:

4 0
4 years ago
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