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3 years ago

PLEASE HELP ! WILL GIVE BRAINLIEST

Mathematics

1 answer:

sergiy2304 [10]3 years ago

3 0

Answer:

11/20

Step-by-step explanation:

22/50 = 44% you have to divide 22 & 50

11/20 = 55% if u divide 11 by 20 it’s not 44%

11/25 = 44% you have to divide 11 by 25

.44 = 44%

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D=8.3m Calculate the circumference of the circle.

nikitadnepr [17]

Answer:

Step-by-step explanation:

C=2*3.14*r

we have the diameter d=2*r=8.3m

C=8.3*3.14=26.06 m

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3 years ago

In parallelogram , ABCD ∠A has a measure of 62° . Find the measures of ∠B and ∠C.

Anastasy [175]

Answer:

<C = 62 degrees, <B= 118 degrees

Step-by-step explanation:

Opposite angles of parallelograms are always congruent.

Consecutive ( angles that are next to each other ) always add up to 180.

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3 years ago

The x coordinate of the midpoint is the _____ the x coordinates of the endpoints.

Free_Kalibri [48]

Answer:

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Step-by-step explanation:

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3 years ago

which statements are true about the graph of the function f(x) = 6x – 4 x2? check all that apply. the vertex form of the functio

Brut [27]

Answer:

The vertex of the function is the point $(-3,-13)$

The graph increase over the interval--------> (-3,∞)

Step-by-step explanation:

we have

$f(x)=6x-4+x^{2}$

1) Convert to vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)+4=x^{2}+6x$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)+4+9=x^{2}+6x+9$

$f(x)+13=x^{2}+6x+9$

Rewrite as perfect squares

$f(x)+13=(x+3)^{2}$

$f(x)=(x+3)^{2}-13$ -----> function in vertex form

2) Find the vertex

The vertex of the function is the point $(-3,-13)$

3) Find the axis of symmetry

we know that

In a vertical parabola, the axis of symmetry is equal to the x-coordinate of the vertex

The x-coordinate of the vertex in this problem is equal to $x=-3$

therefore

the equation of the axis of symmetry is $x=-3$

4) Find the increase-decrease intervals

The graph increase over the interval--------> (-3,∞)

The graph decrease over the interval--------> (-∞,-3)

see the attached figure to better understand the problem

5) Find the x-intercepts of the function

we know that

the x-intercepts are the values of x when the value of the function is equal to zero

In this problem the x-intercepts are

$(-6.61,0)$ and $(0.61,0)$

The function cross the x-axis twice

see the attached figure

5 0

4 years ago

Read 2 more answers

The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has

alexgriva [62]

I belive this is the answer

x³ = 27/125; and

x = 3/5.

explanation:

Reducing the voltage 3 times would result in multiplying the unknown voltage, x, by itself 3 times; this gives us

x³.

The current voltage is 27/125; this gives us the equation

x³ = 27/125.

To solve this, take the cubed root of both sides:

∛(x³) = ∛(27/125)

x = (∛27)/(∛125)

x = (∛(3*3*3))/(∛(5*5*5))

x = 3/5

7 0

2 years ago