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2 years ago

Is -7, -5, -2, 2, 7 arithmetic or geometric

Mathematics

1 answer:

kipiarov [429]2 years ago

5 0

Answer: arithmetic

Step-by-step explanation:

arithmetic is if it is added or subtracted by a common number while geometric is multiplied or divided by a common number.

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Simplify the expression

erastova [34]

Answer : A

We need to simplify the given expression

Lets factor numerator first

$2x^2-5x-3$ =(2x+1)(x-3)

$x^2+8x+15$ =(x+5)(x+3)

Now we factor the denominator

$x^2+x-20$ =(x+5)(x-4)

$2x^2+9x+4$ =(2x+1)(x-4)

Now we simplify it

$\frac{(2x+1)(x-3)}{(x+5)(x-4)} * \frac{(x+5)(x+3)}{(2x+1)(x-4)}$

Now cancel out same factors. so we left with

$\frac{(x+3)(x-3)}{(x+4)(x-4)} }$

Now multiply the factors

$\frac{x^2-9}{x^2-16} }$

6 0

2 years ago

PLZZZZ HELPPPPPPPPP!!!! a survey asks teachers and students whether they would like the new school mascot to be a Viking or a Pa

VARVARA [1.3K]

Answer:

Step-by-step explanation:

Two events A and B are called independent, when

$P(B|A)=P(B),$

where $P(B|A)$ is the probability that B occurs given that A has already occurred.

A = randomly selected person is a student

B = randomly selected person prefer "Vikings"

B|A = randomly selected student prefer "Vikings"

Probabilities:

$P(A)=\dfrac{100}{125}=\dfrac{4}{5}=0.8\\ \\P(B|A)=\dfrac{80}{85}=\dfrac{16}{17}\approx 0.94$

Since

$0.80\neq 0.94$

we can state that events are not independent.

8 0

2 years ago

Read 2 more answers

Is 1/2*4/5 less than 4/5

kati45 [8]

No hope this helps bc it’s being multiplied and even then u simplify

4 0

2 years ago

8z+12+3

yarga [219]

Answer:

8z+15

Step-by-step explanation:

7 0

2 years ago

Write n+6 in a word phase

Delvig [45]

The sum of a number and 6.

Or

The sum of n and 6

7 0

3 years ago