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3 years ago

Find the ratio of 3 3/4 to 7 1/4

Mathematics

1 answer:

Sergio039 [100]3 years ago

5 0

Answer:

15 : 29

Step-by-step explanation:

(3 3/4) / (7 1/4) = ((3·4+3)/4) / ((7·4+1)/4)

= (15/4) / (29/4) = 15/29

The ratio of the two numbers is 15 : 29.

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Which fraction is equivalent to -7/8 1. 8/-7 2. -7/-8 3. 8/7 4. 7/-8

IceJOKER [234]

Answer:

Your answer is answer no 4 = 7/-8

7 0

3 years ago

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Circle O, with center (x, y) passes through the points A(0, 0), B(-3, 0), and C(1, 2). Find the coordinates of the center of the

KonstantinChe [14]

Answer:

The center of the circle is

$(-\frac{3}{2},2)$

Step-by-step explanation:

Let the equation of the circle be

$x^2+y^2+2ax+2by+c=0$ , where (-a,-b) is the center of this circle.

The points lying the circle must satisfy the equation of this circle.

A(0,0)

We substitute this point to get;

$0^2+0^2+2a(0)+2b(0)+c=0$

$\implies c=0$

B(-3,0)

$(-3)^2+0^2+2a(-3)+2b(0)+c=0$

$\implies 9+0-6a+0+c=0$

$\implies -6a+c=-9$

But c=0

$\implies -6a=-9$

$\implies a=\frac{3}{2}$

C(1,2)

$1^2+2^2+2a(1)+2b(2)+c=0$

$1+4+2a+4b+c=0$

$2a+4b+c=-5$

Put the value of 'a' and 'c' to find 'b'

$2(\frac{3}{2})+4b+0=-5$

$3+4b+0=-5$

$4b=-5-3$

$4b=-8$

b=-2

Hence the center of the circle is

$(-\frac{3}{2},2)$

8 0

3 years ago

5) Consider the diagram. What is QS? 2 units 5 units 17 units 33 units

Shkiper50 [21]

Answer:

17 units

Step-by-step explanation:

8 0

2 years ago

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Ry-wy=t solve for y

Greeley [361]

Answer:

y = $\frac{t}{R-w}$

Step-by-step explanation:

Given

Ry - wy = t ← factor out y from each term on the left side

y(R - w) = t ( divide both sides by (R - w ) )

y = $\frac{t}{R-w}$

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3 years ago

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I really need help finding the surface area

SpyIntel [72]

There are 4 triangles and the formula for the area of a triangle is 1/2BH so 11x10 is 110 and then take half of that and you’ll get 55. Since there are 4 triangles you need to then multiply that by 4 to get 220. And then you have to find the area of the square base which is 11x11 which will come out to 121. So you add the 220 and 121 to get 341.

4 0

2 years ago