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kolbaska11 [484]
2 years ago
15

HELP I WILL GIVE OUT BRAINLETS I didnt spell it right uwu

Mathematics
1 answer:
bekas [8.4K]2 years ago
8 0
4:5 I think I’m not sure
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A pizzeria charged 12 per pizza plus an addition $3.00 for delivery which equation represents the cost of having any number of p
Liula [17]
Y=12x+3

y: total cost
x: number of pizzas
3 0
3 years ago
Solve for x use the completing the square method x^2+6x=5
Mrac [35]

Answer:

x_{1} =-3 +\sqrt{14} \\\\x_{2} =-3 -\sqrt{14}

Step-by-step explanation:

x^{2}+6x-5=0

we divide the coefficient of the X by half :

in this case: 6/2 = 3 , then we do the following

The result obtained is raised to square power:  3^2=9

we sum and subtract by 9 to maintain the balance of the equation:

x^{2}+6x+9-9-5=0

we have:

(x+3)^{2}-9-5=0

(x+3)^{2} = 14

lets apply square root on both sides of the equation:

\sqrt{(x+3)^{2}}=\sqrt{14}

we know:

\sqrt{a^{2}} = abs(a)

so we have:

abs(x+3)=\sqrt{14}

from where two solutions are obtained

x_{1} + 3 =\sqrt{14} \\\\x_{2} + 3 =-\sqrt{14}

finally we have:

x_{1} =-3 +\sqrt{14} \\\\x_{2} =-3 -\sqrt{14}

5 0
3 years ago
Read 2 more answers
Simplify the expression: 1/4+4/5(3/4x-1 1/9)
sweet-ann [11.9K]

Answer:

 108x + 29

 —————

       180  

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Find the value of y for a given value of x, if y varies directly with x. If y = 0.15 when x = 1.5, what is y when x = 6.3? a. –0
Studentka2010 [4]

Answer:

b

Step-by-step explanation:

I believe its b, because1.5 is 10 times 0.15

and 6.3 is 10 times 0.63

7 0
3 years ago
The square shown has a perimeter of 32 units. The square is rotated about line k. what is the circumfrence of the base
boyakko [2]

The circumference equal to 25 units

<h3>What is perimeter of square?</h3>

The perimeter of square is 4 times the side.

P= 4* side

The perimeter of the square,

4x = P

Now P is =  32 units then,

32 units = 4(x)

x = 8 inches

So,  the diameter of the cylinder formed by the rotation of 8 inches  

Now, the circumference of the base is

C = 2πr = πD

If r =8  inches

                           

C = π(8 units) = 8π units

C = 8(3.14) = 25.12 units

Hence, the circumference equal to 25 units

Learn more about perimeter of square here:

brainly.com/question/11495285

#SPJ1

6 0
2 years ago
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