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Serjik [45]
3 years ago
9

Help please it’s confusing ⚠️⚠️

Mathematics
1 answer:
ElenaW [278]3 years ago
6 0
Y intercept= (0,4) slope= -4/5
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Help please!! ill give brainliest!
Juli2301 [7.4K]

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Actually Welcome to the Concept of the Linear equation.

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3 years ago
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Nhat is the slope of the line whose equation is y-4=(x-2)?
Readme [11.4K]

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3 years ago
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Indicate the answer choice that best completes the statement or answers the question.
Reil [10]

41 1/4 by 25 ft

Hope it helped!!!

7 0
2 years ago
5 AB is the diameter of a circle whose center is the point (4,-3). If the coordinates of A are (-1,5), Find AB>
Ostrovityanka [42]

Given:

AB is the diameter of a circle whose center is the point (4,-3).

Coordinates of A are (-1,5).

To find:

The measure of AB.

Solution:

Let point O(4,-3) be the center of the circle.

Then, OA is the radius of the circle.

We know that, diameter of a circle is twice of its radius.

So, AB=2(OA)       ...(i)

Distance formula:

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

Using distance formula, the distance between O and A is

OA=\sqrt{(-1-4)^2+(5-(-3))^2}

OA=\sqrt{(-5)^2+(5+3)^2}

OA=\sqrt{25+(8)^2}

OA=\sqrt{25+64}

OA=\sqrt{89}

Now, using (i), we get

AB=2(OA)

AB=2(\sqrt{89})

AB=2\sqrt{89}

Therefore, the measure of AB is 2\sqrt{89} units.

7 0
2 years ago
The first solution contains 15 % acid, the second contains 25 % acid, and the third contains 70 % acid. She created 48 liters of
earnstyle [38]

Answer:

First solution = 12 Liters

Second solution = 12 Liters

Third solution =  24 Liters

Step-by-step explanation:

Let the  number of  liters of 25% acid =  y

The number of  liters of 70 % acid = 2y

The number of  liters of  15 % acid = 48-3y

Volume of  acid in  first solution=  0.15 (48-3y)

Volume of  acid in  second solution=  0.25y

Volume of  acid in  third solution=  0.7 (2y)

Volume of acid in mixture  =  0.45 x48

                                             = 21.6 liters

Assuming no loss of volume,

0.15 (48-3y) + 0.25y + 0.7 (2y) = 21.6

7.2 -0.45y + 0.25y +1.4y = 21.6

7.2+ 1.2y = 21.6

1.2y = 21.6 - 7.2

1.2 y = 14.4

y = 14.4/1.2

y = 12 liters

Substituting the value of y above:

Volume of first solution =  48-3y

                                       =  48- 3(12)

                                       =  48-36

                                       = 12 liters

Volume of second solution =  y

                                              = 12 liters

Volume of third   solution =  2y

                                            = 2 (12)

                                            = 24 liters

7 0
2 years ago
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