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Varvara68 [4.7K]
3 years ago
8

find the area of a right angle triangle whose hypotenuse is 13 cm long and one of its legs is 12 cm long​

Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Answer:

30 cm^2

Step-by-step explanation:

a = 13 cm

b = 12 cm

using Pythagorean theorem:

a^2 = b^2 + c^2

--> c^2 = a^2 - b^2 = 13^2 - 12^2 = 169 - 144 = 25

--> c = √25 = 5

The area of that right triangle is:

S = b.c / 2 = 12 . 5 / 2 = 30 (cm^2)

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I rlly need help with this gr 11 math problem
prohojiy [21]

Answer:

a) \frac{d-5.50}{0.45}

b) The inverse function is a reflection of the original function across the line

y = x. For example, if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x. So you would use it to find the x-value at a y just like you use the original to find the y value at an x.

Step-by-step explanation:

To do an inverse of a function you first switch the independent variable (d) and the dependent variable (c).

d = 0.45c + 5.50

Then you solve for c

d - 5.50 = 0.45 c

c = (d-5.50)/0.45

8 0
3 years ago
The stock market dropped 220 points on Monday. It lost another 48 points on Tuesday, and on Wednesday, it gained 96 points. What
MissTica

48 points gained in those 3 days.

Subtract 220 with 48, then add 96. Last step would be subtracting 220 with the amount they have now in those 3 days to find how much points the stock market gained in those 3 days.

Subtract 220-48.It‘ll be 172.

Add 172 with 96. 172+96=268.

Subtract 268 with how much points the stock market had 3 days ago. 268-220.

Sot eh stock market gained 48 points in 3 days.

4 0
3 years ago
HELP PLEASE.................
Kryger [21]
Zero

There is no solution for these equations as there is no even one point of intersection between them



6 0
3 years ago
Cally
photoshop1234 [79]

Answer:

10.08+4.99x\leq 50

x\leq 8

The maximum pounds of cheese that Ariana can buy is 8

Step-by-step explanation:

Let

x ---> the amount of cheese In pounds, that  Ariana can buy

we know that

The cost of 3 loaves of bread plus the cost of the cheese must be less than or equal to $50

so

The inequality that represent this situation is

3(3.36)+4.99x\leq 50

10.08+4.99x\leq 50

solve for x

subtract 10.08 both sides

4.99x\leq 50-10.08

4.99x\leq 39.92

divide by 4.99 both sides

x\leq 8

Therefore

The maximum pounds of cheese that Ariana can buy is 8

3 0
3 years ago
HELP ME A cheetah ran 75 meters at a speed of 25 meters per second. How long was the cheetah running?
zepelin [54]
3 seconds is the correct answer :)
6 0
3 years ago
Read 2 more answers
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