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3 years ago

Question 4................................(2)

Mathematics

1 answer:

lianna [129]3 years ago

4 0

Answer:

Step-by-step explanation:

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Which number line model shows 8 x 1/2

Vilka [71]

Answer:

D, the fourth one

Step-by-step explanation:

There are 8 jumps, and it says 1/2 so it would take 2 jumps for each number which would be 4 as the answer.

6 0

3 years ago

write the standard form of the equation of the circle for which the endpoints of a diameter are (0,0) and (4,-6)

Elenna [48]

Given:

The endpoints of a diameter are (0,0) and (4,-6).

To find:

The equation of the circle.

Solution:

The endpoints of a diameter are (0,0) and (4,-6). So, the length of the diameter is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$d=\sqrt{(-6-0)^2+(4-0)^2}$

$d=\sqrt{36+16}$

$d=\sqrt{52}$

$d=2\sqrt{13}$

Now, radius is half of the diameter.

$r=\dfrac{2\sqrt{13}}{2}$

$r=\sqrt{13}$

Center of the circle is the midpoint of the endpoints of a diameter.

$Center=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$Center=\left(\dfrac{0+4}{2},\dfrac{0+(-6)}{2}\right)$

$Center=\left(\dfrac{4}{2},\dfrac{-6}{2}\right)$

$Center=\left(2,-3\right)$

Standard form of a circle is

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

where, (h,k) is center and r is radius.

The center of the circle is (2,-3) and radius is $\sqrt{13}$ . So,

$(x-2)^2+(y-(-3))^2=(\sqrt{13})^2$

$(x-2)^2+(y+3)^2=13$

Therefore, the standard form of the circle is $(x-2)^2+(y+3)^2=13$ .

5 0

2 years ago

Denise has it 28 yards of fabric how many ties can can be made from the fabric is each type used is 3/4 yard of fabric

miss Akunina [59]

You have to divide , first you have to turn 28 into a fraction , 28 over one , then you have to flip 3/4 into 4/3 then multiply it

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3 years ago

3. Jessie has 25 small

elena-14-01-66 [18.8K]

Answer:

500 rocks

Step-by-step explanation:

25*20 = 500

7 0

2 years ago

What is the slope of the line that passes through (-4, 5) and (1, 3)?

Tasya [4]

M=-2/5 is the answer to this equation

7 0

3 years ago