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olasank [31]
2 years ago
5

Please help me iffffffffffffffff

Mathematics
2 answers:
olganol [36]2 years ago
7 0

Answer:

10

Step-by-step explanation:

The pythagorean theorem states that a^2+b^2=c^2.  a and b are the shorter sides and c is the hypotenuse, or the longest side.  You can tell the hypotenuse because it is opposite to the right angle.

Therefore, a=6, b=8 and c=x.  You can switch a and b if you like, it doesn't really matter.

using the pythagorean thm. 6^2+8^2=x^2.  You simplify the exponents and combine like terms to get x^2=100.  You take the square root of both sides and get 10.

Zigmanuir [339]2 years ago
6 0

Answer:

x=10

Step-by-step explanation:

6^2+8^2=x^2

36+64=x^2

100=x^2

x=10

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The base of a triangle exceeds the height by 7 centimeters. If the area is 400 square centimeters, find the length of the base a
zvonat [6]

Answer:

Base = 32 cm

Height = 25 cm

Step-by-step explanation:

Area of a triangle can be calculated as:

Area = \frac{1}{2}\times Base \times Height

We are given that the base of triangle exceeds the height by 7 cm. This can be expressed in an equation form as:

Base = Height + 7

Lets use B to represent base and H to represent height

B = H + 7

The equation of area can be stated as:

Area=\frac{1}{2}bh\\\\ Area=\frac{1}{2}(h+7)(h)\\\\ 400=\frac{1}{2}h(h+7)\\\\ 800=h^{2}+7h\\\\ h^{2}+7h-800=0

This is a quadratic equation which can be solved using a quadratic equation as shown below:

h=\frac{-7+-\sqrt{49-4(1)(-800)} }{2(1)} \\\\ h=\frac{-7+-57}{2}\\\\h=-32,25

Since the height cannot be negative, we'll consider the positive value only i.e height is equal to 25 cm.

Therefore, the length of base will be 25 + 7 = 32 cm.

8 0
3 years ago
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11
pogonyaev
Answer is A: when you add all the percents it’s 50 the rest is 50%
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