3 years ago

What does Decreased by mean

Mathematics

2 answers:

borishaifa [10]3 years ago

6 0

It means A, subtraction

8_murik_8 [283]3 years ago

6 0

A. Subtraction

To "decrease by" means to take away something, in which subtracting will accomplish this goal.

You might be interested in

The product of 576 and 684 is irrational or rational

umka2103 [35]

Answer: rational

Step-by-step explanation:

Definitely rational because 576 and 684 are both natural numbers

6 0

4 years ago

Read 2 more answers

This Question: 1pt

Natali5045456 [20]

Answer:

No its -1

Step-by-step explanation:

x = -1 b/c

9x + 4 = 3x - 2

-3x -4. -3x -4

________________

6x = -6

_________

x= -1

7 0

4 years ago

What is the inverse of the function f(x) = one-ninthx + 2?

Bumek [7]

Answer: 9x - 18

Step-by-step explanation:

Inverse is when you swap the x's and y's and solve for y

$\text{Given: }\quad y=\dfrac{1}{9}x+2\\\\\text{Swapped: }x=\dfrac{1}{9}y+2\\\\.\qquad \quad x-2=\dfrac{1}{9}y\\\\.\qquad 9(x-2)=y\\\\.\quad \large\boxed{9x-18=y}$

3 0

3 years ago

4x-2y=-1 -4x+4y=-2 please help

Shtirlitz [24]

4x-2y=-1
Slope = 2
x-intercept = -1/4
y-intercept = 1/2

-4x+4y=-2
Slope = 1
x-intercept = 1/2
y-intercept = 1/-2

3 0

3 years ago

The university police department keeps track of the number of tickets it write in a year. Last year the campus police wrote 1460

AlladinOne [14]

Answer:

Step-by-step explanation:

We are given that Ticket writing on campus follows a Poisson process.

Last year the campus police wrote 1460 tickets

So, $X \sim Poisson (1460 / year)$

1 year = 365 days

So, E(Y) = $\frac{1460}{365}=4$

So, the standard deviation of the number of tickets written per day by the campus police = $\sqrt{4} =2$

Hence the standard deviation of the number of tickets written per day by the campus police is 2

5 0

3 years ago