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3 years ago

HELP ASAP PLEASE!!

Mathematics

1 answer:

LekaFEV [45]3 years ago

4 0

All I know is x is 81 degrees

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If the two dice are rolled 45 times, predict about how many times a sum of 9 will be rolled.

Liula [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

What should be multiplied by the expression in the image to obtain the smallest square

makkiz [27]

Answer:

2xy

Step-by-step explanation:

Here, we want to obtain the number with the smallest square

To get this, we simply find the nearest number square which is 2

The nearest x squared which is x (to get x^4)

The nearest y squared which is y (to get y^2)

Thus, the smallest number so we get a square will be; 2xy

4 0

2 years ago

HELP! Identify the equation of the circle that has its center at (-3, -4) and passes through the origin.

Lunna [17]

Answer:

Option B. (x+3) ^2+(y+4)^2=25

Step-by-step explanation:

we know that

The equation of the circle in standard form is equal to

$(x-h)^{2}+(y-k)^{2}=r^{2}$

where

(h,k) is the center and r is the radius

step 1

Find the radius of the circle

Remember that the distance of the center and any point on the circle is equal to the radius of the circle

Find the distance between the points (-3,-4) and (0,0)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute

$r=\sqrt{(0+4)^{2}+(0+3)^{2}}$

$r=\sqrt{(4)^{2}+(3)^{2}}$

$r=\sqrt{25}$

$r=5\ units$

step 2

Find the equation of the circle

$(x-h)^{2}+(y-k)^{2}=r^{2}$

the center is the point (-3,-4) and the radius is r=5 units

substitute

$(x+3)^{2}+(y+4)^{2}=5^{2}$

$(x+3)^{2}+(y+4)^{2}=25$

6 0

3 years ago

Kate begins solving the equation (6x – 3) = (6x – 4). Her work is correct and is shown below. (6x – 3) = (6x – 4) 4x – 2 = 3x –

Alexxandr [17]

Answer:

x = 0.

Step-by-step explanation:

4x = 3x

4x - 3x = 0

x = 0

Hope this helps!

3 0

3 years ago

The variables y and x have a proportional relationship, and y = 5 when x = 4.

Tema [17]

Given is -

The variables y and x have a proportional relationship, and y = 5 when x = 4.

$\frac{y}{x}=\frac{5}{4}$

As we have to find the value of x when y= 8 so putting y = 8 in the above relationship, we get :

$\frac{8}{x}=\frac{5}{4}$

$5x=32$

$x=6.4$

Hence, the answer is 6.4

8 0

3 years ago