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Paul [167]
3 years ago
11

NEED HELP WILL GIVE OUT BRAINLIEST AND POINTS

Mathematics
1 answer:
sattari [20]3 years ago
6 0
Part 1) <span>Find the area 

we know that
the area of the triangle is
A=b*h/2
in this problem
b=9
h=12
so
A=9*12/2-----> A=54 units</span>²

the answer part 1) is
Area=54 units²

Part 2) <span>Find the area of the kite

see the picture attached with letters to better understand the problem

we know that
The area of a Kite is </span><span>half the product of the diagonals
</span><span>
step 1
find CB
applying Pythagoras Theorem
AB</span>²=AC²+BC²------> BC²=AB²-AC²-----> BC²=5²-3²----> BC²=16
<span>BC=4
so
the diagonals are
(10+4) and (3+3)---------> 14 and 6
Area=(1/2)*[14*6]----> Area=42 units</span>²<span>

the answer Part 2) is
the area of a kite is 42 units</span>²

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I NEED HELP PICTURE PROVIDED!
Sav [38]
Question 2:
The answer is 21
The two angles are vertically opposite, which makes them equal and also means we can make an equation:
4x - 4 = 3x + 17
- 3x
x - 4 = 14
+ 4
x = 21

Question 3:
The answer is 23
Again, the angles are vertically opposite, so we can make them equal each other:
5x - 53 = 3x - 7
- 3x
2x - 53 = -7
+ 53
2x = 46
÷ 2
x = 23

I hope this helps!
7 0
2 years ago
Find the values of a b and c for which the quadratic equation ax^2+bx+c=0 has the solutions -3 and 1
zavuch27 [327]
It may be easier to start from

.. a(x +3)(x -1) = 0
.. a(x^2 +2x -3) = 0

The quadratic
.. ax^2 +bx +c = 0 will have solutions -3 and 1 for ...

.. a ≠ 0
.. b = 2a
.. c = -3a
7 0
3 years ago
A department store buys 400 shirts at a cost of $9,600 and sell them at a selling price of $30 each.
oksano4ka [1.4K]

Answer: where’s the question? You didn’t write any questions:c

Step-by-step explanation:

3 0
2 years ago
The formula for finding the horsepower of a vehicle is: Horsepower = weight × ( velocity 234 ) 3 Weight is the total weight of t
Luden [163]
The answer is option 2
 Power = 175 hp
 The correct formula to calculate the power is:
 Power = weight * (speed / 234) ³
 Where the weight is that of the vehicle plus the driver's
 Therefore the calculation is as follows:
 Power = (2200 + 180) * (98/234) ³
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 Rounding ...
 Power = 175 hp
8 0
3 years ago
If x + 2y = 8 and x is twice the value of y, what is x – y?
mezya [45]

Answer:

2

Step-by-step explanation:

x=4 and y=2

5 0
3 years ago
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