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Artyom0805 [142]
3 years ago
6

What is the area of an isosceles trapezoid, if its shorter base has length of 18 cm, the length of the altitude is 9 cm, and the

measure of the acute angle is 45°? Answer: A = cm2
UUUUURRRRRRRGGGGGGEEEEEEEENNNNNNNNTTTTTT!!!!!!!!!!!
Mathematics
1 answer:
padilas [110]3 years ago
5 0

The formula for the area of a triangle of base b and altitude h is A = (1/2)(b)(h).

Here, b = 18 cm and h = 9 cm.  Thus, the desired area is:

        (18 cm)(9 cm)

A = ----------------------- = 81 cm^2

                  2

This problem gives you more info than is needed to solve it.  The area of the given triangle is 81 cm^2.

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A golfer attempts to hit a golf ball over a valley from a platform above the groun
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Answer: NO

Step-by-step explanation:

The functions that models the height of the ball is given as

h(t) = -5t2 + 40t + 100

Where

a = -5, b = 40, c = 100

The time the ball will reach the maximum height will be the vertex of the parabola. At the line of symmetry, the time t will be:

t = -b/2a

Substitute b and a into the formula above.

t = - 40 / -5 = 8

Substitute 8 for t in the function f(t)

h(t) = - 5(8)^2 + 40(8) + 100

h(t) = -5(64) + 40(8) + 100

Open the bracket

h(t) = -320 + 320 + 100

h(t) = 100

The maximum height of the ball is 100m

Given that the power lines is 185 metres above the ground. The golf ball will therefore not hit power lines because the maximum height the ball can go is 100 metres

3 0
3 years ago
1. Mr. Green works as the art teacher at Hamburg Summer Day Camp. Six hundred
NeTakaya
The amount of percentaile of 600 to 6 is 1%
6 0
3 years ago
I forgot to do slopes
Minchanka [31]
To find the slope of the line, use the rise over run formula:

\frac{y_{2} - y_{1}}{x_{2} - x_{1}}

Take any two points from the line and plug them into the formula.

(0,0) and (10, 5)

\frac{5 - 0}{10 - 0} = \frac{5}{10} = 0.5

The slope of the line is 0.5.

Using the form y = mx, the following equation will be your answer:

y = 0.5x
7 0
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Which is a true statement<br><br> 5/6 &gt; 10/12<br> 1/4 &gt; 1/3<br> 13/15 &gt; 4/5<br> 6/9 = 1?3
Svetach [21]

Answer:

1/4 > 1/3

Step-by-step explanation:

because its the only that is not equal

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Rama09 [41]
The original price was $142.50. What I did was that I added 40% with $101.79 which was the sales price. With the 40% the person saved $40.71.

Hope this helps : )*****
5 0
3 years ago
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