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3 years ago

I really need help on this problem!!!

Mathematics

1 answer:

AURORKA [14]3 years ago

6 0

Answer:

Step-by-step explanation:

1/4 + 5/8

= (2+5)/8

= 7/8

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What is the equation of a circle that has a center at (-4, 10) and a radius of 8?

mars1129 [50]

Answer:

The equation of the circle is $(x + 4)^2 + (y - 10)^2 = 64$ , third option is correct.

Step-by-step explanation:

Equation of a circle:

The equation of a circle with center $(x_0,y_0)$ and radius r is given by:

$(x - x_0)^2 + (y - y_0)^2 = r^2$

Center at (-4, 10)

This means that $x_0 = -4, y_0 = 10$ .

Radius of 8:

This means that $r = 8$ . So

$(x - x_0)^2 + (y - y_0)^2 = r^2$

$(x - (-4))^2 + (y - 10)^2 = 8^2$

$(x + 4)^2 + (y - 10)^2 = 64$

The equation of the circle is $(x + 4)^2 + (y - 10)^2 = 64$ , third option is correct.

3 0

3 years ago

The equation t^3=a^2 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A

ankoles [38]

Answer:

2√2

Step-by-step explanation:

We can find the relationship of interest by solving the given equation for A, the mean distance.

<h3>Solve for A</h3>

$T^3=A^2\\\\A=\sqrt{T^3}=T\sqrt{T}\qquad\text{take the square root}$

<h3>Substitute values</h3>

The mean distance of planet X is found in terms of its period to be ...

$D_x=T_x\sqrt{T_x}$

The mean distance of planet Y can be found using the given relation ...

$T_y=2T_x\\\\D_y=T_y\sqrt{T_y}=2T_x\sqrt{2T_x}=(2\sqrt{2})T_x\sqrt{T_x}\\\\D_y=2\sqrt{2}\cdot D_x$

The mean distance of planet Y is increased from that of planet X by the factor ...

2√2

8 0

2 years ago

Brandon is half as old as his brother Ryan.Ryan is one eight the age of his fatherb if their father is 2 years old. How old are

Agata [3.3K]

1/8 of 32 is 4 so if Ryan is 4 then Brandon is 2

so Ryan = 4 and Brandon = 2

4 0

3 years ago

WIL GIVE BRAINLIEST ANSWER! HELP ASAP!

Evgesh-ka [11]

Answer:

Multiply the divisor and dividend by 100.

Step-by-step explanation:

The first step is to eliminate decimal points in both divisor and dividend. Since to convert 0.15 to a whole number you multiply by 100 then it means both the divisor and dividend should be multiplied by 100. So that we shall have 4860/15=324

6 0

3 years ago

Read 2 more answers

Can someone please help and explain

Y_Kistochka [10]

The coefficient is 2, the first number being multiplied by a variable will always be the coefficient.

3 0

3 years ago