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1 year ago

10

I’m needing some help with this

2 answers:

Vesna [10]1 year ago

4 0

Answer:

Step-by-step explanation:

Vikentia [17]1 year ago

3 0

Answer: place points at (0,3) and (5,5)

Step-by-step explanation: the formula for a line is y = mx + b, where m is the slope and b is the y-intercept (the point where the line meets the y-axis). Since b is positive 3, place a point at (0,3).

m = 2/5, and since slope is rise over run (distance traveled in y axis over distance traveled in x axis) and it is positive, your next point is 2 up and 5 right, which is (5,5). You could also place a point at (-2,-2).

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Given the relation x=y4-9y2, identify the x- and y- axis intercepts

brilliants [131]

Answer:

The relation between x = y4 - 9y2 is that they are both unknown also that it equals 0

Step-by-step explanation:

i don't know what y and x are the only thing i know is the relation

Hope i could be helpful

8 0

3 years ago

A quadratic relation has zeros at 3 and –5. The parabola goes through the point (2, –14). What is the equation of the parabola i

olasank [31]

Answer:

$\displaystyle 2 {x}^{2} + 4x - 30 = 0$

Step-by-step explanation:

we are given the zeros and a point where it goes through of a quadratic equation

remember that when the roots are given then the function should be

$\displaystyle \: y = a(x - x_{1})(x - x_{2})$

where a is the leading coefficient and x1 and x2 are the roots

substitute:

$\displaystyle y = a(x - (3))(x - ( - 5))$

simplify:

$\displaystyle y = a(x - 3)(x + 5)$

now the given point tells us that when x is 2 y is -14 therefore by using the point we can figure out a

substitute:

$\displaystyle a(2 - 3)(2 + 5) = - 14$

simplify parentheses:

$\displaystyle a( - 1)(7) = - 14$

simplify multiplication:

$\displaystyle - 7a = - 14$

divide both sides by -7:

$\displaystyle a = 2$

altogether substitute:

$\displaystyle y = 2(x - 3)(x + 5)$

since it want the equation y should be

$\displaystyle 2(x - 3)(x + 5) = 0$

recall quadratic equation standard form:

$\displaystyle {ax}^{2} + bx + c = 0$

so simplify parentheses:

$\displaystyle 2( {x}^{2} + 2x - 15 ) = 0$

distribute:

$\displaystyle 2 {x}^{2} + 4x - 30 = 0$

hence,

the equation of the parabola in standard form is <u>2</u><u>x</u><u>²</u><u>+</u><u>4</u><u>x</u><u>-</u><u>3</u><u>0</u><u>=</u><u>0</u>

8 0

3 years ago

The test score for a class pf 101 students are computed. What is the percentage of score equal to or grater than the third quart

irina [24]

Answer:

Step-by-step explanation:

The third quartile is at 75% of total of number of students.

So percentage score great or equal to this is 25%.

4 0

2 years ago

PLEASE HAVE VERY IMPORTANT

Elena L [17]

Answer:

50.27

Step-by-step explanation:

The shape is a circle

Radius is 4

Diameter is 8 (diameter is always double of the radius)

π * r^2 = π * 16 ft^2 = 50.27 ft^2

(16 = 8 * 2)

7 0

3 years ago

Write an equation in point-slope form of the line that passes through the given points. (-2,-5), (4,-1)

grigory [225]

Answer:

Step-by-step explanation:

(-1 + 5)/(4 + 2) = 4/6= 2/3

y + 5 = 2/3(x + 2)

y + 5 = 2/3x + 4/3

y + 15/3 = 2/3x + 4/3

y = 2/3x - 11/3

6 0

3 years ago