3 years ago

Help please""..".....................

Mathematics

1 answer:

Galina-37 [17]3 years ago

6 0

Answer:

its upside down tho but let me see

its the first one

You might be interested in

Is y = 5x − 3 a linear function? If so, graph the function.

labwork [276]

It is
If you have a slope (which is before the x) then it’s a linear equation

7 0

3 years ago

3x + ky = 8

djyliett [7]

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

3 0

3 years ago

The equation below can be used to solve which of the following word problems? 2x + 4y = 18

densk [106]

One of the 4 options prolly D

7 0

3 years ago

What is the smallest number that has a remainder of 1, 2, and 3 when divided by 2, 3, and 4, respectively? Are there more number

Kitty [74]

Answer:

11 is the answer.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin

g100num [7]

Answer: $(24.28,\ 27.72)$

Step-by-step explanation:

Given : Sample size : $n=50$

Sample mean : $\overline{x}=26$

Standard deviation : $\sigma =6.2$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=26\pm(1.96)\dfrac{6.2}{\sqrt{50}}\\\\\approx26\pm1.72\\\\=(26-1.72,\ 26+1.72)\\\\=(24.28,\ 27.72)$

Hence, a 95% confidence interval for the population mean = $(24.28,\ 27.72)$

6 0

3 years ago