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nlexa [21]
4 years ago
6

11) The sum of two numbers is 25. The difference of two numbers is 3.

Mathematics
1 answer:
kupik [55]4 years ago
5 0

Answer:

11) 14 and 11

Step-by-step explanation:

i can't help in number 12 , sorry !

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If the hypotenyse of an isosceles triangle is 8 inches, is there enough information to find the length of the legs? If yes, find
OLga [1]

Answer: 5..6 in.

Step-by-step explanation:

Given

Hypotenuse of isosceles triangle is 8 inches

In isosceles triangle two sides are equal

Suppose the other side is x

Using Pythagoras we can write

\Rightarrow x^2+x^2=8^2\\\Rightarrow 2x^2=64\\\Rightarrow x^2=32\\\Rightarrow x=4\sqrt{2}\approx 5.6\ in.

Therefore, the lengths of the legs is 5.6 inches

3 0
4 years ago
Suppose we want to choose 2 objects without replacement from the 4 colors red, blue, green, purple. How many ways can this be do
7nadin3 [17]

Answer:

Number of ways = 6

Step-by-step explanation:

Given:

Total number of choices = 4

Taken object choices = 2

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Number of ways

Computation:

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Number of ways = [4 × 3] / [2 × 1]

Number of ways = [12] / [2]

Number of ways = 6

6 0
4 years ago
There are currently 3 people signed up for the debate club. The school will not recognize the club officially until it has more
Arisa [49]
You want it to be greater than and equal to 2.  A closed circle means to include 2 so you want a closed circle and to the right is to bigger numbers so you want to the right.  So the answer is b. Number line with closed circle on 2 and shading to the right.
4 0
3 years ago
How many ways to make a password with 2 letters followed by 3 numbers if NO<br> repeats are allowed?
faust18 [17]

Answer:

my105

Step-by-step explanation:

I don't really know if this will work but

Hope it helped: )

5 0
3 years ago
Read 2 more answers
PLEASE HELLP I REALY NEED SOME HELP WITH THIS QUESTION
Yuliya22 [10]

It's a summation (sigma) notation.

\sum\limits_{i=1}^n a_i = a_1 + a_2 + ... a_n\\

This expression means the sum of all the terms a_i, where <em>i</em> takes the values from 1 to <em>n</em>.

So <em>i</em> is the index (like a counter) and <em>n</em> is the last value.

In this case:

\sum\limits_{n=1}^6\frac{n}{2n+1} =\frac{1}{2*1+1}+ \frac{2}{2*2+1}+ \frac{3}{2*3+1}+ \frac{4}{2*4+1}+ \frac{5}{2*5+1}+ \frac{6}{2*6+1} \\= \frac{1}{3}+ \frac{2}{5}+\frac{3}{7}+\frac{4}{9}+\frac{5}{11}+\frac{6}{13}=\frac{113623}{45045} \approx 2.522\\\\



3 0
4 years ago
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