Ask question

Ask question

All categories

3 years ago

5

Can u help me i'm not good at math (cap)

1 answer:

Alborosie3 years ago

6 0

Step-by-step explanation:

1. 2.30% ,1/5,0.23

2. 1.7%,17/100,17

You might be interested in

Which of these is an example of discrete data?

Nadya [2.5K]

Do you still need help

7 0

3 years ago

Which of these is an example of multi-stage sampling?

zlopas [31]

Answer:

The answer is D.) Choosing New York as a sample, then selecting a sample of zip codes within New York, then sampling the names of people living in those zip codes.

Explanation:

When you use multistage sampling, you take a sample from a population by breaking it down into smaller and smaller groupings (units) at each stage. It's frequently used in nationwide surveys to collect data from a big, geographically dispersed group of people. I hope I helped! ^-^

5 0

3 years ago

Simplify 2y^2 + 2y + 2y + 2x^2.

klio [65]

Answer:

2x^2+2y^2+4y would be your answer

Step-by-step explanation:

7 0

3 years ago

Twice the difference between a number and 10 is equal to 6 times the number plus 16. What is the number?

oksano4ka [1.4K]

This is a lot of math to write.... so I'll just say the answer is -21 :D

8 0

3 years ago

I need help please with this 1 problem

Lyrx [107]

Answer:

See below, please

Step-by-step explanation:

We know

$f(x) = {x}^{2} + 3x - 7$

$g(x) = 3x + 5$

$h(x) = 2 {x}^{2} - 4$

Hence

$f(g(x))$

$= {(3x + 5)}^{2} + 3 \times (3x + 5) - 7$

$= (9 {x}^{2} + 30x + 25) + (9x + 15) - 7$

$= 9 {x}^{2} + 39x + 33$

$h(g(x))$

$= 2 \times {(3x + 5)}^{2} - 4$

$2 \times (9 {x}^{2} + 30x + 25) - 4$

$= 18 {x}^{2} + 60x + 50 - 4$

$= 18 {x}^{2} + 60x + 46$

$(h - f)(x)$

$= h(x) - f(x)$

$= (2 {x}^{2} - 4) - ( {x}^{2} + 3x - 7)$

$= {x}^{2} - 3x + 3$

$(f + g)(x)$

$= f(x) + g(x)$

$= ( {x}^{2} + 3x - 7) + (3x + 5)$

$= {x}^{2} + 6x - 2$

5 0

2 years ago