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seraphim [82]
3 years ago
10

Using elimination solve 4x-y=4 and 7x-3y=-3

Mathematics
2 answers:
Charra [1.4K]3 years ago
5 0
Well I got m=3 and b=8
lilavasa [31]3 years ago
3 0
The answer to this is x=3 and y=8
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The cone shown has a radius of 5 inches and a slant height of 8 inches. Rounded to the nearest whole number, what is the total s
elena55 [62]
Basically apply your radius and slant height to the formula to find the surface area of a cone which is S=3.14r^2+3.14rl

4 0
3 years ago
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An object is placed 21 cm from a concave lens of focal length 25 cm. what is the magnification?
wariber [46]

The magnification is 0.54

Given,

The distance between object and concave lens, u = -21 cm

Focal length of the concave lens, f = -25 cm

Let m be the magnification.

m = v/u

Here v is the position of image.

We have to find v first.

By using lens equation we can determine v.

That is,

1/f = 1/v – 1/u

So,

- (1/25) = 1/v – (-1/21)

- (1/25) = 1/v + 1/21

1/v = - (1/25) – 1/21

1/v = (-25 – 21) / (21 x 25)

1/v = - (46/525)

Therefore v = - (525/46)

   v = -11.41 cm

Now we have to find magnification, m.

m = v/u

   = (-11.41) / (-21)

   = 0.54

Here magnification is 0.54

Learn more about concave lens here: brainly.com/question/12944945

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6 0
2 years ago
Altitudes are congruent segments true or false
Snezhnost [94]
Not true, at least not always. When we are talking about an isosceles triangle there will be two equal altitudes and one is different. In case of a regular triangle all the other three altitudes have equal length! :)
6 0
3 years ago
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s344n2d4d5 [400]
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8 0
3 years ago
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MakcuM [25]

Answer:

$24.50

Step-by-step explanation:

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3 0
4 years ago
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