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avanturin [10]
3 years ago
7

± √2 write the quadratic eaquation with the given roots.

Mathematics
1 answer:
IrinaVladis [17]3 years ago
8 0
X= -√2          x=√2

-x=√2          ( x)²=2

(-x)²=2         x²=2

x²=2

Therefore, your answer is x²-2=0
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The Johnsons bought 3 burrito meals and 4 taco meals for $48. The Sloans bought 6 burrito meals and 2 taco meals for $60. How mu
faust18 [17]

Answer:

Each burrito meal cost 8$

Each taco meal cost 6$

Step-by-step explanation:

Johnsons= 3b +4t =48

Sloans= 6b+2t=60

multiple johnsons by -2

so, now the johnsons are -6b+-8t=-96

add that to the sloans so, -6b+6b-8t+2t=-96+60

the b's cancel eachother out, so you are left with -6t= -36

divide each side by -6 and you will get t=6

then you can pick either formula, lets say sloans this time

so, 6b + 2(6)=60 so, 6b+12=60, subtract 12 from each side, to get 48

so 6b=48, divde each side by 6 and you will get b=8

7 0
3 years ago
Which statement is true about the equation 3/4 z - 1/4 z + 1 = 2/4 z + 1?
Verizon [17]

Answer:

D, infinitely many solutions

Step-by-step explanation:

Let's first simplify the left side:

3/4 z - 1/4 z + 1 = 2/4 z + 1

Clearly, once you simplify the left side, it's the exact same as the right side. This is a true equation: 2/4 z + 1 = 2/4 z + 1

For any value that you put in for z, it will always be equal, no matter what.

Thus, the equation has D, infinitely many solutions.

Hope this helps!

8 0
3 years ago
Two pyramids are similar. The volume of the larger pyramid is 125 m³ and the volume of the smaller pyramid is 27 m³. The height
Aleks [24]
48m3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
5 0
3 years ago
Read 2 more answers
Find the solution(s) of the system of equations. x2 + y2 = 18 y = x + 6
Scorpion4ik [409]

Answer:

(-3,3)

Step-by-step explanation:

x² + y² = 18

y = x + 6

(Assuming you mean x and y to the power of 2. Use the ^ symbol to tell that is it an exponent like this: x^2)

First, substitute the y in the first equation

x² + (x + 6)² = 18

FOIL

x² + x² + 12x + 36 = 18

2x² + 12x + 36 = 18

Subtract 18 from both sides

2x² + 12x + 36 = 18

               - 18   - 18

2x² + 12x + 18 = 0

Divide both sides by 2

(2x² + 12x + 18)/2 = 0/2

x² + 6x + 9 = 0

Factor

(x + 3)(x + 3) = 0

x has to be -3 for the equation to be 0, so the x = -3

Plug the new x into one of the original equations; we'll use the second one

y = -3 + 6

y = 3

3 0
3 years ago
A local school has clubs. The number of students in each club is shown in the bar graph below. Use this bar graph to answer the
zysi [14]
C is correct I think
3 0
3 years ago
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