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Lostsunrise [7]
3 years ago
13

Plz help.................

Mathematics
1 answer:
PtichkaEL [24]3 years ago
6 0
1) question 1 has been done for you

2) step one: square the two numbers that aren’t the hypotenuse(the longest side-opposite the right angle).
Step two: add the two numbers together
Step three: square the hypotenuse

If the two values squared and added together equal the hypotenuse squared then it is a right angled triangle.

3) a triangle with the side lengths of 11cm, 13cm and 15cm wouldn’t be a right angled triangle.

Because 11^2 + 13^2 = 290 and 15^2 = 225, therefore it isn’t a right angled triangle because 290 doesn’t equal 225.
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svet-max [94.6K]

Answer:

The square= 144 sq. meters

The rectangle= 6 meters

Step-by-step explanation:

Hope that helps!!

6 0
3 years ago
If the rate of decrease for the partial pressure of N2H4 in a closed reaction vessel is 76 torr/h , what is the rate of change f
fiasKO [112]

The reaction is missing and it's ;

N2H4 + H2 ---> 2NH3

It asks for the total pressure too.

Answer:

A) Rate of change for NH3 = 152 torr/h

B) The total pressure in the vessel will remain the same.

Step-by-step explanation:

N2H4 + H2 ---> 2NH3

1 mole of N2H4 yields 2 moles of NH3.

From the question, the rate given for N2H4 is 76 torr/h.

Thus, The rate of change for NH3 will be = 2 x 76 = 152 torr/h

Now, on the reaction side, 1 mole of N2H4 reacts with 1 mole of H2. So we have 2 moles on the left hand side.

While on the product side, 2 moles of NH3 are produced.

So the total pressure will remain the same because for every 2 moles on the reaction side, 2 moles are gotten on the product side.

3 0
3 years ago
5 Points
Degger [83]

Answer:

(x - 2)² + (y + 3)² = 9

Step-by-step explanation:

(x - h)² + (y - k)² = r²

(x - 2)² + (y - (-3))² = 3²

(x - 2)² + (y + 3)² = 9

4 0
3 years ago
3 parts List the ratios using angle A as the angle of reference reduce when necessary
Inga [223]
Answer:

Sin J= 42/58= 21/29
Cos J= 40/58= 20/29
Tan J= 42/40= 21/20

Explanation:
4 0
3 years ago
Read 2 more answers
An apartment complex has a total of 175 units. Of these, 154 units are occupied. What percent of the apartment are unoccupied?
Vikentia [17]

Answer:

22%

Step-by-step explanation:

100% - ( 154 / 175 )

1.00 - (0.88)

0.22 -------> 22%

3 0
3 years ago
Read 2 more answers
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