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TiliK225 [7]
3 years ago
8

Write an expression equivalent to x+5+2x+2

Mathematics
1 answer:
n200080 [17]3 years ago
4 0
X + 5 + 2x + 2
x + 2x + 5 + 2
3x + 5 + 2
3x + 7
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Question
Mademuasel [1]

Answer: F

Step-by-step explanation:

  1. This does not have infinitely many solutions (adding the equations, we get a fixed value of x)
  2. This has no solutions (the left hand sides are the same but the right hand sides have different values)
  3. This has one solution (the first equation givess a fixed value for x)
  4. This has no solutions (same reason as 2)
  5. This has one solution (same reason as 3, just the second equation instead of the first)
  6. This has infinitely many solutions (multiplying both sides of the top equation by -2 gives the bottom equation).
6 0
3 years ago
State whether the slope of a line passing through (8, 8) and (6, -12) is positive, negative, zero or undefined.
hichkok12 [17]

(-12 - 8)/(6 - 8) = -20/-2 = 10.

It's positive.

3 0
4 years ago
The high temperature will be at least 75 degrees today write an equality
Elenna [48]
,
t \geqslant 75
4 0
3 years ago
Find the area in cm2 of a rhombus whose side length is 29 cm and
kotegsom [21]
\left(\frac{d}{2}\right)^2+\left(\frac{d+2}{2}\right)^2=29^2\\\\\frac{d^2}{4}+\frac{d^2+4d+4}{4}=841\ \ \ \ /\cdot4\\\\d^2+d^2+4d+4=3364\\\\2d^2+4d+4-3364=0\\\\2d^2+4d-3360=0\ \ \ \ /:2\\\\d^2+2d-1680=0

a=1;\ b=2;\ c=-1680\\\\\Delta=b^2-4ac\to\Delta=2^2-4\cdot1\cdot(-1680)=4+6720=6724\\\\\sqrt\Delta=\sqrt{6724}=82\\\\d_1=\frac{-b-\sqrt\Delta}{2a}\to d_1=\frac{-2-82}{2\cdot1} < 0\\\\d_2=\frac{-b+\sqrt\Delta}{2a}\to d_2=\frac{-2+82}{2\cdot1}=\frac{80}{2}=40\ (cm)\\\\d=40cm;\ d+2=42cm\\\\A_r=\frac{d(d+2)}{2}\to A_r=\frac{40\cdot42}{2}=840\ (cm^2)

3 0
3 years ago
Please help! It’ll give you 43 points!
Nesterboy [21]

Answer:

5

Step-by-step explanation:

divide the numerator by the denominator

3 0
3 years ago
Read 3 more answers
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