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stepan [7]
3 years ago
8

After Lydia spends 20% of her savings on car repairs, she has $1500 left. How much was in her saving originally?

Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

$7,500

Step-by-step explanation:

1500/2 750, 750x10=7,500

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Find the x-intercepts/roots of the polynomial function. Also, identify the degree of the polynomial
Mrac [35]

Answer:

Step-by-step explanation:

7.

roots=-2,-1,1,3

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absolute minimum=-13

End behavior :approaches +infinity

Relative max=6 at (0,6)

Relative min. =-3 at (-1.5,-3)

and -13 at (2,-13)

interval of increase=(-1.5,0)∪(2,∞)

interval of decrease=(-∞,-1.5)∪(0,4)

8.

roots=-1,2

critical points=(0.5,10.5),(4,-10.5)

Abs.max/abs.min=not defined

End behavior:-∞ to +∞

Relative max=10.5

Relative min=-10.5

interval of increase=(-∞,0.5) ∪ (4,∞)

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3 years ago
Linda already owns 10 hair bands, and additional hair bands are priced at 1 for a dollar.
dybincka [34]

Answer:

Step-by-step explanation:

45 total hair bands

8 0
2 years ago
I need help on thiss​
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B because it is between x: 4 and 6. And it is linear and decreasing
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the constant of proportionality is always the point_______, where k is the constant of proportionality. Additionally, you can fi
MArishka [77]

Answer:

Step-by-step explanation:

When two variables say x and y are proportional let us assume y dependent variable and x independent variable

then we have y =kx

Here k is called the constant of proportionality.

Whenever x increases/decreases by 1 unit, the y value also increases/decreases by k units.

Whenever x=1, y =k

and always \frac{y}{x} =k

Thus we can fill up as

the constant of proportionality is always the point___(1.k)____, where k is the constant of proportionality. Additionally, you can find the constant of proportionality by finding the ratio of___y to x____, for any point on the___graph of the function.___.

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3 years ago
Help please! <br>using quadratic formula <br>round ti nearest hundred ​
Lera25 [3.4K]

Answer:

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reordering the equation,

7x²-4x-2 = 0

Applying,

x = [-b±√(b²-4ac)]/2a..................... Equation 1

From the question,

Given: a = 7, b = -4, c = -2

Substitute these values into equation 1

x = [-4±√(-4²-(2×7×-2)]/(2×7)

x = [-4±√(16+28)]/14

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or

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x = (-4-6.63)/14

x = -10.63/14

x = -0.76

3 0
3 years ago
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