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larisa [96]
3 years ago
11

Someone help me please lol

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

this what i got

Step-by-step explanation:

1. x = 5.5

2. 14.2

3. 3.6

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3x-5y+6 how many terms are in this expression
djyliett [7]
3 terms are in the expression
7 0
3 years ago
can anyone help me with this ??
Mars2501 [29]

Answer:

A. 336

B. Arranging 3 people in 8 chairs.

C. 42

B. Arranging 2 people in 7 chairs.

Step-by-step explanation:

A.

P(n, r) = P(8, 3)

Formula for Permutation is given as:

P(n, r) = \dfrac{n!}{(n-r)!}

Putting the value of n = 8 and r =3 , we get:

P(8, 3) = \dfrac{8!}{(8-3)!} \\\Rightarrow \dfrac{8\times 7 \times 6 \times 5\times 4 \times 3 \times 2\times 1}{5\times 4 \times 3\times 2\times 1}\\\Rightarrow 8\times 7 \times 6 \\\Rightarrow 336

B. Real world situation for part A:

Arranging 3 people on 8 chairs.

First person has 8 options.

Second person has 7 options.

Third person has 6 options.

C.

P(n, r) = P(7, 2)

Formula for Permutation is given as:

P(n, r) = \dfrac{n!}{(n-r)!}

Putting the value of n = 7 and r = 2 , we get:

P(7, 2) = \dfrac{7!}{(7-2)!} \\\Rightarrow \dfrac{7 \times 6 \times 5\times 4 \times 3 \times 2\times 1}{5\times 4 \times 3\times 2\times 1}\\\Rightarrow 7 \times 6 \\\Rightarrow 42

D.  Real world situation for part AC:

Arranging 2 people on 7 chairs.

First person has 7 options.

Second person has 6 options.

4 0
3 years ago
Guys help me pls I need it immediately
julsineya [31]

Answer:

Hey there!

First, we want to find the side length of the large triangle.

1/2bh=y cm^2

bh=2y cm^2

Since b and h are the same here, we have b^2= 2y, b=\sqrt{2y}.

And we have FC=\frac{\sqrt{2y} }{2}.

Area of shaded triangle: \frac{1}{2} (\frac{\sqrt{2y} }{2})(\frac{\sqrt{2y} }{2}).

This is equal to: \frac{1}{2}(\frac{2y}{4}), or y/4.

Let me know if this helps :)

6 0
3 years ago
Find the slope of a line parallel to x+y=14
Alex787 [66]

Answer:

Slope = -1

Step-by-step explanation:

x+y = 14

First convert the equation into slope-intercept form

y = -x+14

Parallel lines have the same slope, so its -1.

4 0
3 years ago
What is the common difference or common ratio of the sequence 3,7,11,15...?
olga55 [171]

Answer: you only add 4 each time

Step-by-step explanation:

8 0
3 years ago
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