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2 years ago

9

20 POINTS

1 answer:

Nata [24]2 years ago

7 0

Answer:

1, 3, 7.

Step-by-step explanation:

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Use the parabola tool to graph the quadratic function f(x)=−12x2+7. Graph the parabola by first plotting its vertex and then plo

Fudgin [204]

First we find the vertex of parabola $f(x)=-12 x^{2} +7$

The vertex of parabola is $( \frac{-b}{2a},f( \frac{-b}{2a}))$
Here,
b = coefficient of x term
a = coefficient of x² term

For given parabola, b = 0 , a = -12

So,
$\frac{-b}{2a}= \frac{0}{-24} =0$

And,

$f( \frac{-b}{2a} )=f(0) = -12(0)+7=7$

Thus the vertex of parabola is (0, 7)

To find another point on parabola, substitute x by 1.

$f(1)=-12( 1^{2}) +7=-12+7=-5$

So the second point on parabola is (1,-5)

The plot of parabola is shown in image below:

5 0

3 years ago

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What is the equation in slope-intercept form of the line that passes through the point (5, 0) and is parallel to the line repres

alisha [4.7K]

Answer:

y=1.2x-5

Step-by-step explanation:

Parallel lines are equal lines that never intersect or touch each other.

When a problem gives you information about the line being parallel to another, you'll know the slope of the line is going to be the same.

3 0

3 years ago

Pls help I’ll brainlest solve it like this

sergey [27]

$\frac{3}{5} t = 6$

$t = 6 \div \frac{3}{5}$

$t = 6 \times \frac{5}{3}$

$t = 2 \times 5$

$t = 10$

____________________________

$\frac{1}{4} a = \frac{14}{15}$

$a = \frac{14}{15} \div \frac{1}{4}$

$a = \frac{14}{15} \times 4$

$a = \frac{56}{15}$

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2 years ago

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By what percent will the fraction change if its numerator is increased by 25% and its denominator is increased by 20%

givi [52]

Answer: 4.7%

Step-by-step explanation:

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3 years ago

Frieda and Joanne are laying a 17 meter track for model trains. They completed one stretch that is 7.44 meters long and another

Dvinal [7]

D is the correct answer. Hopes that helps.

3 0

3 years ago