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Veseljchak [2.6K]
3 years ago
11

Help me with 1 , 3, 5pleasee show your work

Mathematics
1 answer:
guapka [62]3 years ago
3 0

Answer: 1. 8x+40

3. -6m-18

5. -5x-1

Step-by-step explanation:

1. 8*x=8x   8*5=40

3. -2*3m=-6m  -2*9=-18

5. -1*5x=-5x   -1*1=-1

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7 0
4 years ago
Please answer this correctly
Drupady [299]

Answer:

1/8

Step-by-step explanation:

The probability of picking a 3 is 1/4.

The probability of picking an even number is 2/4.

1/4 × 2/4

2/16 = 1/8

7 0
3 years ago
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What is the rate of change between the interval x= pi and x= 3pi/2
Romashka [77]

Answer:

\frac{6}{\pi } or 1.9099

Step-by-step explanation:

Look for y values at each of those given values of "x" and apply the slope formula.  When x = pi. y = -1 so the coordinate is (\pi,-1).  When x = 3pi/2, y = 2 so the coordinate is (\frac{3\pi }{2},2)

Plug those values into the slope formula:

\frac{2-(-1)}{\frac{3\pi }{2}-\pi}

You need a common denominator of pi:

\frac{3}{\frac{3\pi-2\pi}{2} }=\frac{3}{\frac{\pi }{2} }

Do the math on that to get a slope of \frac{6}{\pi } =1.9099

8 0
4 years ago
Given that B, D and F are midpoints, find the length of segment DA.
TiliK225 [7]

Answer:

The length of segment DA is 15 units

Step-by-step explanation:

  • <em>The segment which joining a vertex of  a triangle and the midpoint of the opposite side to this vertex is called a median </em>
  • <em>The point of intersection of the median of a triangle divides each median into two parts the ratio between them is 1: 2 from the base, which means </em><em>the length of the median is 3 times the part from the base</em><em>  </em>

Let us use this rule to solve the question

In Δ AEC

∵ D is the midpoint of EC

∴ AD is a median

∵ B is the midpoint of AC

∴ EB is a median

∵ F is the midpoint of AE

∴ CF is a median

→ The three medians intersected at a point inside the triangle,

   let us called it M

∵ AD ∩ EB ∩ CF at M

∴ M is the point of intersection of the medians of Δ AEC

→ By using the rule above

∴ AD = 3 MD

∵ MD = 5

∴ AD = 3(5)

∴ AD = 15 units

6 0
3 years ago
Read 2 more answers
Write an equation for the description.
Nesterboy [21]
Answer

x - 15 = 18

Explanation

X is the variable that is required to get the answer 18
8 0
3 years ago
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