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UNO [17]
3 years ago
11

Find the area of the triangle, also am I correct???

Mathematics
2 answers:
Delicious77 [7]3 years ago
7 0

Answer:

10.92 cm^2

Step-by-step explanation:

The area of a triangle is found from

A = 1/2 bh where b is the base and h is the height

b = 2.8 and h = 7.8

A = 1/2 (2.8) * (7.8)

10.92 cm^2

Ierofanga [76]3 years ago
3 0

Answer:

The area of the triangle is 10.92 cm².

Step-by-step explanation:

The formula for the area of a triangle is

A=\frac{1}{2}bh

where b is the length of the base and h is the height. We know that b = 2.8 and h = 7.8, so you would substitute into the formula:

A=\frac{1}{2}(2.8)(7.8)=10.92 cm²

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Please help me I will give you brain list
xz_007 [3.2K]

1 triangle=3 sticks.

2 triangle= 6 sticks.

3 triangle= 9 sticks.

4 triangles=12 sticks.

5triangles=15sticks.

10 triangles= 30 sticks.

30 triangles=90 sticks

8 0
3 years ago
Find a parabola with equation y=ax^2+bx+c that has a slope 10 at x=1, slope -26 at x=-1, and passes through the point (2,29)
Hatshy [7]

9514 1404 393

Answer:

  y = 9x^2 -8x +9

Step-by-step explanation:

The given equation has derivative ...

  y' = 2ax +b

The requirements on slope give rise to two equations:

  2a(1) +b = 10

  2a(-1) +b = -26

Adding these equations together gives ...

  2b = -16   ⇒   b = -8

Then we have ...

  2a -8 = 10

  a = (10 +8)/2 = 9

__

The given point lets us find the constant term c.

  y = 9x^2 -8x +c

  c = y -(9x -8)x = 29 -(9(2) -8)(2) = 29 -20 = 9

The equation of the parabola is ...

  y = 9x^2 -8x +9

6 0
3 years ago
I need help with number 8 and 9 someone please help ASAP
vichka [17]
I just know #8 but it's c
7 0
3 years ago
What is the common ratio of the geometric sequence?
DanielleElmas [232]

Answer:

1/2

Step-by-step explanation:

16,8,4,2

it is decreasing by 2 each time

or we can call it multiplying by 1/2

16* 1/2 = 8

8* 1/2 = 4

4* 1/2 =2


4 0
4 years ago
Write a sentence that explains the relationship between the values of the two sevens in 277,180
Alecsey [184]
7 in the ten thousands place is ten times the 7 in the thousands place.

7 x 10,000 = 70,000
7 x   1,000 =  7,000

7,000 x 10 = 70,000
 
4 0
3 years ago
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