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Masteriza [31]
3 years ago
7

I need help with this problem 30 points up for grabs if you answer.

Mathematics
1 answer:
Rama09 [41]3 years ago
7 0

Answer:

Step-by-step explanation:

13 cm

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A number divided by -3 is -5 what is the number
olga55 [171]

Answer:

+15

Step-by-step explanation:

Let No be x

X÷-(3)=-5

X=+15

Law (-ve times -ve=+ve)

6 0
3 years ago
Are there any limits to the value of Sine, Cosine and Tangent? if so, what are they and why?
worty [1.4K]
With Sine, Cosine, and Tangent there are no limits with the numbers you can use and they can be found on a calculator. When you press one of the 3 it will show up like:

Sine(
Cos(
Tan(

Than just add your number and press enter
8 0
2 years ago
What is the length of diagonal BD in rectangle ABCD if BC=5 and CD=8.
svetlana [45]
I hope this helps you

6 0
3 years ago
Are these correct???
Nutka1998 [239]

Answer:

They are all correct.

Step-by-step explanation:

1.

1/2(b)(h)

1/2(4)(6)

1/2(24)

12

2. l x w

7 x 5

35

3. (b)(h)

(8)(4)

32

8 0
3 years ago
Using mathematical induction prove whether or not the following statement is true for all positive integers n, or show why it is
aniked [119]

Base case: For n=1, the left side is 2 and the right is 2\cdot1^2=2, so the base case holds.

Induction hypothesis: Assume the statement is true for n=k, that is

2+6+10+\cdots+4k-2=2k^2

We want to show that this implies truth for n=k+1, that

2+6+10+\cdots+4k-2+4(k+1)-2=2(k+1)^2

The first k terms on the left reduce according to the assumption above, and we can simplify the k+1-th term a bit:

\underbrace{2+6+10+\cdots+4k-2}_{2k^2}+4k+2

2k^2+4k+2=2(k^2+2k+1)=2(k+1)^2

so the statement is true for all n\in\mathbb N.

5 0
3 years ago
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