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Flura [38]
3 years ago
10

15.00 + 1.75x = 7.50 + 2.25

Mathematics
1 answer:
vodomira [7]3 years ago
5 0
I believe it’s X=+15 sorry if I’m wrong
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Solve the equation
inysia [295]

Answer:

x ≈ 1.32, x ≈ - 5.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11}

Thus

x = - 2 - \sqrt{11} ≈ - 5.32 ( to 2 dec. places )

x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

8 0
3 years ago
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At how many different times will the digit 7 appear on a digital clock in 24 hours?(show your work and explain your strategy bel
exis [7]
There are 24 hours in one day. when you count from 1-24, (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24) the number 7 shows up twice
3 0
4 years ago
A large bottle of juice contains 500 milliliters of juice. A small bottle contains 50% as much juice as the large bottle. How ma
Elanso [62]
250milliliters
explanation: divide 500/2 since there is only half in the small bottle
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3 years ago
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Find the value of p so that the equation 2x²+PX_2=0
padilas [110]
Answer: P = 0

Explanation:

2x^2 + Px - 2 = 0
2x^2/2 + Px/2 - 2/2 = 0/2
x^2 + Px/2 - 1 = 0

If we plug P = 0

x^2 + 0x/2 - 1 = 0
x^2 + 0 - 1 = 0
x^2 - 1 = 0
(x - 1)(x + 1) = 0
8 0
3 years ago
I need help with these math questions :/
makkiz [27]
1. H (-4,-4) I (-2,-2) J (-5,-2)
2.B
3.J (-4,-1) K (-1,0) L (-2,-4)
4.B (0,-2) C (3,-3) D (4,1)
5.R (4,-3) S (3,-1) T (-1,1) U (0,4)
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3 years ago
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