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4 years ago

22 + Ча= За –13 Solve for a

Mathematics

2 answers:

romanna [79]4 years ago

3 0

Answer:

mark as brainliest!!!!!!

Step-by-step explanation:

22+13=-4a+3a

35= -a is ur answer

sukhopar [10]4 years ago

3 0

Answer:

-35

Step-by-step explanation:

Adding 13 to both sides, you get:

35+4a= 3a

Then, you can subtract 4a from both sides to get:

35=-a

Finally, you need to multiply both sides by -1:

a=-35

Hope this helps!

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if BA is extended all the way through A creating BF and A becomes the midpoint of BF, then what are the coordinates of F

gogolik [260]

Answer:

$F(2x_A-x_B,2y_A-y_B)$

Step-by-step explanation:

Let points A, B and F have coordinates $A(x_A,y_A),$ $B(x_B,y_B)$ and $F(x_F,y_F).$

If BA is extended all the way through A creating BF and A becomes the midpoint of BF, then the midpoint A of the segment BF has coordinates:

$\dfrac{x_B+x_F}{2}=x_A\\ \\\dfrac{y_B+y_F}{2}=y_A$

Express coordinates of point F:

$x_B+x_F=2x_A\Rightarrow x_F=2x_A-x_B\\ \\y_B+y_F=2y_A\Rightarrow y_F=2y_A-y_B$

Hence,

$F(2x_A-x_B,2y_A-y_B)$

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3 years ago

What is the answer <br>3y+6=-2x

Anika [276]

SOLVE FOR X (FIRST BOX) SOLVE FOR Y (SECOND BOX)

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3 years ago

A beach ball has a diameter of 18 inches. What is the approximate volume, rounded to the nearest whole number, of the Inflated b

Ivenika [448]

Answer:

The volume of the inflated beach ball is 13734in³

Step-by-step explanation:

We know that the formula to calculate the volume of a sphere is

v = 3/4 * π * r³

π = 3.14

r = 18in

we replace the values and calculate the volume of a sphere

v = 3/4 * 3.14 * (18in)³

v = 3/4 * 3.14 * (5832in³)

v = 13734.36 in³

the nearest whole number

13734in³

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3 years ago

Which equation represents a proportional relationship that has a constant of proportionality equal to -10?

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Step-by-step explanation:

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3 years ago

Find the equation of a line that is perpendicular to 4x+6y=1 that has a greater y intercept compared to 2x+3y=18

Marina86 [1]

Answer:

4y = 6x + 40

Step-by-step explanation:

The general equation of a straight line is y = mx + b

m is the slope and b is the y-intercept

let us write both equations in this form;

we have this as;

6y = -4x + 1

y = -4x/6 + 1/6

and;

2x + 3y = 18

3y = -2x + 18

y = -2x/3 + 6

So firstly we want to find an equation that is perpendicular to the first

When two lines are perpendicular, their slopes has a product of -1

The slope of the first line is -4/6

let the slope of the line we want be m

As per they are perpendicular;

-4/6 * m = -1

-4m/6 = -1

-4m = -6

m = 6/4

So now, we want the y-intercept greater than that of the second equation which is a y-intercept of 6

we can choose 10

and we have the equation as:

y = 6x/4 + 10

multiply through by 4

4y = 6x + 40

7 0

3 years ago