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3 years ago

Use the interactive number line to find the difference. 4.7 - 2.3 = 4.7 + (-2.3) =

Mathematics

1 answer:

FromTheMoon [43]3 years ago

5 0

Answer:

Arrow from 0 to 4.7 and from 4.7 to 2.4

Step-by-step explanation:

4.7 is also 0+4.7

arrow from 0 to 4.7.

-2.3 from 4.7 is 4.7-2.3=2.4

arrow from 4.7 to 2.4.

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Simplify. Remove all perfect squares from inside the square root. √/3065 =

REY [17]

There are none. The factors are 1, 5, 613, and of course 3065 and none are perfect squares.

4 0

2 years ago

How do you write an equation in slope intercept form with the points (5,19) (-9,5)

Vika [28.1K]

Answer:

y=x+6

Step-by step

m = y2 - y1

-----------

x2 - x1

5 - 19 = -14

----------------

-9 - 5 -14

b = y + x

= 5 + 1

= 6

5 0

3 years ago

Please solve for X and find the measure of B

Vitek1552 [10]

Answer:

Step-by-step explanation:

A and B are both equal (corresponding parts)

A = B

5x - 5 = 3x + 13 Add 5 to both sides

5x = 3x + 13 + 5 Combine

5x = 3x + 18 Subtract 3x from both sides

5x - 3x = 18 Combine

2x = 18 Divide by 2

2x/2 = 18/2

x = 9

Angle B

B = 3x + 13 Let x = 9

B = 3*9 + 13

B = 27 + 13

Angle B = 40

5 0

2 years ago

I have to get this so I pass help plz

pshichka [43]

Answer:

$\boxed{\sf x=-2}$

$\boxed{\sf y=-4}$

Step-by-step explanation:

First, Let's solve for x in -2x+2y=-4:

$\sf -2x+2y=-4$

Subtract 2y from both sides:

$\sf -2x+2y-2y=-4-2y$

$\sf -2x=-4-2y$

Divide both sides by -2:

$\sf \cfrac{-2x}{-2}=-\cfrac{4}{-2}-\cfrac{2y}{-2}$

$\bold{ x=y+2}$

Now, we'll substitute x=y+2 to 3x+3y=-18:

$\sf 3x+3y=-18$

→ let x=2+y

$\sf 3\bold{(2+y)}+3y=-18$

Simplify:

$\sf 6+6y=-18$

Now, let's solve for y in 6+6y=-18

$\sf 6+6y=-18$

Subtract 6 from both sides:

$\sf 6+6y-6=-18-6$

$\sf 6y=-24$

Divide both sides by 6:

$\sf \cfrac{6y}{6}=\cfrac{-24}{6}$

$\bold{ y=-4}$

Now, substitute y=-4 into x=2+y:

$\sf x=2+y$

→ let y = -4

$\sf x=2+\bold{-4}$

$\bold{x=-2}$

Therefore, x=-2 and y=-4.

_____________________________________

5 0

2 years ago

Please help! It would be appreciated ! :)

Katarina [22]

Step-by-step explanation:

(x-9)²

= (x-9)(x-9)

= x²-9x-9x+81

= x²-18x+81

5 0

3 years ago