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NARA [144]
2 years ago
11

Help me, please! I'll give a brainlist point! :)

Mathematics
2 answers:
Allisa [31]2 years ago
7 0

Answer:

105

Step-by-step explanation:

Area of a trapezoid is given by the formula:

A = (a+b)÷2×h

(where h is the vertical height, and a and b are the parallel lines)

Substituting values given gives us:

A = (6+15)÷2×10

A = 21÷2×10

A = 10.5×10

A = 105

Units will be m² as this is area.

Harman [31]2 years ago
7 0

Step-by-step explanation:

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If a polygon has 5 closed sides is it automatically a pentagon?
Sindrei [870]

Yes.  A pentagon is any closed polygon with five sides.


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4 years ago
Write the point-slope form of the equation for a line that passes through (–1, 4) with a slope of 2.
kondaur [170]

Point slope is a really easy form for linear equations. It lets you plug in the numbers from a cordinate that the line passes through on the graph and the slope directly. Here is the point slope equation:

y(2) - y(1) = m(x(2) - x(1)

(The (2) and (1) next to the x's and y's are suposed to be underneath them. There is also supposed to be an extra parentheses at the end.)

You would replace y(1) with the y value, x(1) with the x value, and m with the slope. For example, if you have a line that crosses through the point (6, 10) with a slope of 3, this is how you would write the equation of the line in point slope form:

y - 10 = 3(x - 6)

Now, for this problem, we have the point (1, 4) with a slope of 2. This is the point slope form for the given point and slope:

y - 4 = 2(x - 1)

The values of y1 and x1 are the values we plugged into this equation, 4 and 1.

8 0
3 years ago
Read 2 more answers
-17-5(x+3)=3x plz help
katovenus [111]
  1. Start by distributing the -5 into the x and 3
  2. -17-5x-15=3x
  3. add like terms
  4. -5x-32=3x
  5. add 32 to both sides
  6. -5x=3x+32
  7. subtract 3x from both
  8. -8x=32
  9. divide both by -8
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7 0
4 years ago
Read 2 more answers
Simplify: 5P3<br> A. 10<br> B. 15<br> C. 30<br> D. 60
mina [271]

Permutations and Combinations Quick Check

1) D 60

2) B 6

3) B 72

4) D 40,320

5) B 90 ways

4 0
4 years ago
A circular plate has circumference 17.6 inches. What is the area of this​ plate? Use 3.14 for piπ. WILL MARK BRAINLIEST ANSWER!
Mila [183]

Answer:

24.62 in^2

Step-by-step explanation:

The area of a circle is A=pi*r^2

Circumference is C=2*pi*r

Given a circumference of 17.6 inches, we get:

17.6=2*3.14*r

17.6=6.28r

2.8025=r

Given a radius of roughly 2.8 inches, we can find the area:

A=3.14*2.8^2

A=3.14*7.84

A=24.6176

So the area is around 24.62 in^2

6 0
4 years ago
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