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Maurinko [17]
2 years ago
15

Anybody know the answer to this?

Mathematics
1 answer:
fiasKO [112]2 years ago
4 0
It is x=-3 just use Photomath bro
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(Which is the simplified form of the expression ? 3(7/5x+4)-2(3/2-5/4x)
Illusion [34]

Answer:

let's see what to do buddy....

Step-by-step explanation:

3( \frac{7}{5}x + 4) - 2( \frac{3}{2} -  \frac{5}{4}x) \\  \\  =  \frac{21}{5}x + 12  - 3 +  \frac{5}{2}x \\  \\  =  \frac{(21 \times 2) + (5 \times 5)}{10}  x + 9 =  \\  \\  \frac{42 + 25}{10} x + 9 =  \frac{67}{10}x + 9 = 6.7x + 9

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if you get 24 dollars ever week and you save 2/3 of it how much have you been saving i need help please
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3 years ago
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What is the relationship between the tables, equations and graphs as it relates to rate of change/slope?
Mazyrski [523]

Answer:

What is the relationship between equations and graphs?

Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

Step-by-step explanation:

5 0
2 years ago
Hi. I need help with these questions.<br> See image for question. <br> Please answer no 10 and 11
Tanya [424]

9514 1404 393

Answer:

  10. (x, y) = (-3/8, 2 9/16)

  11. k = -1

Step-by-step explanation:

10. The value of x at the vertex is ...

  x = -b/(2a)

  x = -(-3)/(2(-4)) = -3/8

The corresponding value of y is ...

  y = 2 +(-3/8)(-3 +(-3/8)(-4)) = 2 +(-3/8)(-3/2) = 2 +(9/16)

The vertex is (x, y) = (-3/8, 2 9/16).

__

11. The discriminant is zero when the roots are equal.

  b² -4ac = 0

  (k-1)² -4(1)(-k) = 0

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  k² +2k +1 = 0 . . . . . collect terms

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  k = -1 . . . . . . . . . . . . the value of k that satisfies

<em>Check</em>

  x² -2x +1 = (x -1)² = 0 . . . . has equal roots: x=1.

3 0
3 years ago
89.87 is 215% of what number
andre [41]
<span>215% of 89.87=193.2205</span>
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3 years ago
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