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algol13
4 years ago
9

Given rectangle QRST, what is a logical first step to prove that the diagonals QS and RT are congruent?

Mathematics
1 answer:
Natasha_Volkova [10]4 years ago
8 0
Prove that QR is parallel to ST

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A 1.0 l buffer solution is 0.15 m in hcn and 0.10 m in nacn. which action will destroy the buffer?
rjkz [21]

The buffer will probably be destroyed by the addition of HCN.

<h3>What is buffer solution?</h3>

A weak acid and the conjugate base of the weak acid, or a weak base and the conjugate acid of the weak base, are combined to form the buffer solution, a water-based solvent solution. They withstand being diluted or having modest amounts of acid or alkali added to them without changing their pH.

Given that a 1.0 l buffer solution is 0.15 m in HCN and 0.10 m in NaCN.

We need to find a action which one destroy the buffer solution.

A buffer is a substance made of salt and a weak acid that is beneficial. From the aforementioned chemicals, HCN is a potent acid and NaCN is a salt between HF and NaCN. Therefore, the buffer will probably be destroyed by the addition of HCN.

To learn more about buffer solution from the given link

brainly.com/question/22390063

#SPJ4

8 0
2 years ago
Vicci designed a square tile in art class. Each corner of the square tile has a measure of 90 degrees. 30° Which equation could
miv72 [106K]
X=90 degrees you can get the answer by adding up all the angles
4 0
3 years ago
What is the lateral surface area of this right pyramid with a square base?
Brums [2.3K]

Answer:

The lateral surface area of a square pyramid is the sum of the areas of the side faces only, whereas the surface area is the lateral area + area of the base. The lateral area of a square pyramid = 2al (or) 2a√[(a 2 /4) + h 2]. To get the surface area, we need to add the area of the base (which is a 2) to each of these formulas.The surface area of a square pyramid = a 2 + 2al (or) a 2 + 2a[(a 2 /4) + h 2]. where, a = Length of the base (square) l = slant height; h = height of the pyramid.

Step-by-step explanation:

hope this helps if not let me know have a great day :)

7 0
2 years ago
Express your answer in scientific notation.<br> 8.8 x 10^7 + 3.1 x 10^8
hodyreva [135]

Answer:

398000000 x

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
A circular mirror has the diameter of 12 inches. what is the area in square inches?
nika2105 [10]
Hello!

To find the area of a circle you do \pi  r^{2}

Where r stands for radius.

The radius is just half the diameter

So you put that into a calculator and get 113.1in^{2}

Hope this helps!
5 0
4 years ago
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