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tino4ka555 [31]
3 years ago
13

Formula for endpoint of line segment

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

M= (x1+x2/2),(y1+y2/2)

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A snowmobile traveled 32 miles in 2 1/3 hours.
sergey [27]

Answer:

  • 13.7 mph

Step-by-step explanation:

  • d = st

<u>Given</u>:

  • d = 32 miles
  • t = 2 1/3 hr = 7/3 hr

<u>Find the rate s:</u>

  • s = d/t
  • s = 32÷7/3 = 32 × 3/7 = 96/7 ≈ 13.7 mph (rounded)
4 0
2 years ago
Order of Operations with and without variables
lyudmila [28]
I think the answer is -4
6 0
3 years ago
(4x + 4)(ax – 1) – x2 +4
Oksana_A [137]

Answer:

b=-3

Step-by-step explanation:

If the expression simplifies to bx that means the x^{2} terms and the constant terms must be cancel out.

Simplify it first.

(4x+4)(ax-1)-x^{2} +4\\=(4ax^{2} -4x+4ax-4)-x^{2} +4\\=4ax^{2} -x^{2} -4x+4ax-4+4\\=4ax^{2} -x^{2} -4x+4ax

We know –4 + 4 will cancel out. If we simplify this expression to only an x term, then the x^{2} terms should be cancelled. Therefore, we say that 4ax^2 – x^2 = 0.

4ax^{2} -x^{2} =0\\x^{2} (4a-1)=0\\4a-1=0\\4a=1\\a=\frac{1}{4}

If we put a = ¼, then we can find the value of b:

=4(\frac{1}{4} )x^{2} -x^{2} -4x+4(\frac{1}{4} )x\\=x^{2} -x^{2} -4x+x\\ (cancel out x^{2} terms)\\

=-3x

bx=-3x\\      if the  expression is equivalent to bx

Therefore, b = –3.

8 0
3 years ago
Find the value of x. Show your work, congruent triangles
Nataly_w [17]

Answer:

x = 12

Step-by-step explanation:

130 + y = 180   {linear pair}

          y = 180 - 130

         y = 50°

3x - 6 +8x + 4 + 50 = 180        {Angle sum property of triangle}

3x + 8x - 6 +  4 + 50 = 180          {Combine like terms}

          11x + 48          = 180

                    11x        = 180 - 48

                          11x = 132

                            x = 132/11

x = 12°

5 0
3 years ago
PLEASE HELP ME ASAP :(
nexus9112 [7]

Step-by-step explanation:

y=4/3x+4

y int =4

x int = -1

the graph is an increasing graph line that touch 4 in y and -1 in x

m=4/3

4 0
2 years ago
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