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8_murik_8 [283]
2 years ago
7

I WILL MARK BRAINLIEST!!!

Mathematics
1 answer:
Ksivusya [100]2 years ago
5 0

Step-by-step explanation:

y=kx

where k is a constant

-5=k25

k=-5÷25

k=-1/5

The relationship between x an y is y=-1/5x

when x is -10

y= -1/5×-10

y=2

Pls follow

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Whats the answer & how do I solve it ?
Veseljchak [2.6K]

Answer:

Area of rectangle = 225/2 or 112.5

Step-by-step explanation:

Given,

Consider a rectangle ABCD.

Let AC be a diagonal of rectangle of length   = 15

In triangle  ABC.

Sin 45° =height/hypotenuse   {SinФ = height / hypotenuse}

Here, hypotenuse = diagonal of rectangle ( i.e AC = 15)

And height is AB

Therefore, sin 45° = AB/AC

or sin 45° = AB / 15

or 1/√2 = AB /15

AB = 15/√2

Similarly we can find Base (i.e BC) using cosine.

Cos 45° = Base/Hypotenuse

Cos 45° = BC / AC

or  1/√2 = BC/15

BC = 15/√2

Hence we got length of rectangle , AB= 15/√2

And width of rectangle , BC = 15/√2

Therefore, area of rectangle = Length × Width

Area of rectangle = 15/√2  ×   15/√2  = 225/2

Hence, area of rectangle = 225/2 = 112.5

6 0
3 years ago
7 7/8 - 3 1/4 equals what
ELEN [110]
The difference of 7 and 7/8 and 3 1/4 can be restated as the difference between 63/8 and 13/4. This is just a change from mixed numbers to improper fractions. 

We must now get a common denominator (the bottom part of a fraction). To get 8, we must multiply by 2 to the denominator of 13/4. Since we want this number to stay in the same value, we have to multiply the numerator by 2 as well (top part of the fraction). Therefore, we are getting the difference of 63/8 and 26/8. Doing this, we get (63-26)/8, so the answer is 37/8 = 4 5/8
3 0
3 years ago
Read 2 more answers
3. Sara has a basket of fruit that contains 10 lemons, 2 pears, 6 oranges, and 3 apples.
Tom [10]

Answer:

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Step-by-step explanation:

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2 years ago
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attashe74 [19]

Answer:

B. A conclusion proved by deductive reasoning

Step-by-step explanation:

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4 0
1 year ago
Cylinders Q and P are both right circular cylinders. The height of cylinder Q is 3 times the height of cylinder P, and the radiu
Helen [10]

Answer: The volume of cylinder Q is 12 times the volume of Cylinder P.

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

If cylinder Q has radius, r and height, h,

Then

Volume of cylinder Q = πr²h

For cylinder P,

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Radius = 2r

Volume of cylinder P = π(2r)² × 3h

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Therefore, the ratio of the volume of cylinder P to the volume of cylinder Q is

12πr²h/πr²h = 12

5 0
2 years ago
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