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erastova [34]
3 years ago
10

Find two square roots of 400

Mathematics
2 answers:
Maru [420]3 years ago
7 0

Answer:

20

Step-by-step explanation:

when you put 400 under the square root we will get 20

nexus9112 [7]3 years ago
4 0

The square root of 400 is 20. Please give me brainliest

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Monica deposits ​$100 into a savings account that pays a simple interest rate of 3.6​%. Paul deposits ​$200 into a savings accou
Lady bird [3.3K]

Answer:

No, Paul will make more money in a year.

Step-by-step explanation:

Monica: 3.6% · 100 = $3.60 made in a year.

Paul: 2.2% · 200 = $4.4 made in a year.

6 0
2 years ago
Which would be the correct answer!
Blizzard [7]

Answer:

I think also option c ok

8 0
3 years ago
Prove that there are infinitely many primes of the form 4k + 3, where k is a non-negative integer. [Hint: Suppose that there are
Simora [160]

Answer:

The prove is as given below

Step-by-step explanation:

Suppose there are only finitely many primes of the form 4k + 3, say {p1, . . . , pk}. Let P denote their product.

Suppose k is even. Then P ≅ 3^k (mod 4) = 9^k/2 (mod 4) = 1 (mod 4).

ThenP + 2 ≅3 (mod 4), has to have a prime factor of the form 4k + 3. But pₓ≠P + 2 for all 1 ≤ i ≤ k as pₓ| P and pₓ≠2. This is a contradiction.

Suppose k is odd. Then P ≅ 3^k (mod 4) = 9^k/2 (mod 4) = 1 (mod 4).

Then P + 4 ≅3 (mod 4), has to have a prime factor of the form 4k + 3. But pₓ≠P + 4 for all 1 ≤ i ≤ k as pₓ| P and pₓ≠4. This is a contradiction.

So this indicates that there are infinite prime numbers of the form 4k+3.

6 0
3 years ago
Read 2 more answers
The diagonals of a kite have lengths of x inches and 18x inches. The area of the kite is given by A=9x^2. Identify the equation(
VladimirAG [237]

Answer:

Check Explanation

Step-by-step explanation:

The longer diagonal of a kite bisects the shorter diagonal.

The diagram of the kite is shown in the attached image to this solution.

The total area of the kite = The sum of the area of the two triangles that make up the kite.

Total area = (½bh + ½bh) = bh

b = 18x

h = (x/2)

Total area of the kite = (x/2)(18x) = 9x²

Just as the question predicts.

Hope this Helps!!!

7 0
3 years ago
Express the complex number in trigonometric form.
8090 [49]
We can answer this problem asking to express <span>the complex number -6i in trigonometric form. first thing to do is to evaluate the given expressions

cos 0 is 1
sin 0 is 0 
sin 180 is 0
cos 180 is -1
cos 270 is 0
sin 270 is -1
sin 90 is 1
cos 90 is 0.
Hence the answer to this problem is B.</span><span>6(cos 270° + i sin 270°)</span>
3 0
3 years ago
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