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Naddik [55]
2 years ago
12

50 points helppppppppppppppppppppppppppppppppppppppppppppppp i need it fast

Mathematics
2 answers:
Neko [114]2 years ago
6 0

Answer:

area A = 5.25 cm²

area B = 5.25 cm²

area C = 5.25 cm²

Step-by-step explanation:

area of a triangle = 1/2 x base x height

area of A = 1/2 x 4.2 x 2.5 = 5.25 cm²

area of B = 1/2 x 4.2 x 2.5 = 5.25 cm²

area of C = 1/2 x 4.2 x 2.5 = 5.25 cm²

Triangles A, B and C have the same area as they all have the same measures of base and height.

Lapatulllka [165]2 years ago
5 0

All triangles in this shape have same area as they have same base length and height length.

  • area of triangle: 1/2 * base * height

Here the base is 4.2 cm and height is 2.5 cm for all the given triangles.

As a result, we can say that the area of \triangle A,  \triangle B,  \triangle C are equal.

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Jennifer has a map of Yellowstone National Park. The scale on this map is 1cm = 9.8 miles. Jennifer measured some distances on t
ankoles [38]

Answer: 24.5

Step-by-step explanation: 1cm/9.8 mi

                                             2.5cm/? 2.5 *9.8= 24.5

6 0
3 years ago
Read 2 more answers
The Super Bounce brand of bouncy balls rebounds to 85% of the height from which it was dropped. Write both the explicit and recu
jarptica [38.1K]

Answer:

Explicit formula is h(n)=4(0.85)^{n-1}.

Recursive formula is h_n=0.85h_{n-1}

Step-by-step explanation:

Step 1

In this step we first find the explicit formula for the height of the ball.To find the explicit formula we use the fact that the bounces form a geometric sequence. A geometric sequence has the general formula ,a_{n+1}=ar^{n-1}. In this case the first term a_o=4, the common ratio r=0.85 since the ball bounces back to 0.85 of it's previous height.

We can write the explicit formula as,

h(n)=4(0.85)^{n-1}.

Step 2

In this step we find the recursive formula for the height of the ball after each bounce. Since the ball bounces to 0.85 percent of it's previous height, we know that to get the next term in the sequence, we have to multiply the previous term by the common ratio.  The general fomula for a geometric sequene is a_n=a_{n-1}\times r.

With the parameters given in this problem, we write the general term of the sequence as ,

h(1)=4\\h(n)=h_{n-1}\times 0.85.


8 0
3 years ago
Read 2 more answers
Derive cos (2x - 1)​
ExtremeBDS [4]

Answer:

Step-by-step explanation:

I believe that what you want to do here is to "differentiate" cos (2x - 1).

We must use the rule for differentiating cos x and also the chain rule, since the input to cos x here is (2x - 1).

(d/dx) is the derivative operator.

(d/dx) (cos x) = -sin x

(d/dx) cos (2x - 1) = - sin (2x - 1) * (d/dx) (2x -1) = -sin (2x - 1)(2) = -2sin (2x - 1)

8 0
3 years ago
In the xy-plane, the line with equation
Nonamiya [84]
<h3>Answer:  E.  7</h3>

=======================================================

Explanation:

Any point on the x axis always has its y coordinate equal to 0.

Plug in y = 0 and solve for x

y = 4x-28

0 = 4x-28

4x-28 = 0

4x = 28

x = 28/4

x = 7

Therefore, the point (7, 0) is on the line y = 4x-28 and also on the x axis. This is known as an x intercept.

Comparing (7, 0) this to (a, b) shows that a = 7 and b = 0.

6 0
3 years ago
105,159 rounded to the nearest ten thousand
Zanzabum
110,000 is your answer

hope this helps
5 0
3 years ago
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