2 years ago

Find two numbers with a sum of 20 and a difference of 14.

Mathematics

1 answer:

vivado [14]2 years ago

4 0

A and B Definitely. 3 and 17, -3 and -17

You might be interested in

629,999rounded to the nearest hundred thousand is?

Lerok [7]

629,999 =630,000. Nearest hundred

4 0

3 years ago

Read 2 more answers

BRAINLIEST ANSWER!!!!!

Shkiper50 [21]

Hmm....
I know that the first answer is a coin, but I'm not too sure about the second one.

8 0

3 years ago

Read 2 more answers

web based software company is interested in estimating the proportion of individuals who use the Firefox browser. In a sample of

nata0808 [166]

<h2>Answer with explanation:</h2>

Let $\hat{p}$ denotes the sample proportion.

As per given , we have

n= 200

$\hat{p}=\dfrac{30}{200}=0.15$

Critical value for 99% confidence : $z_{\alpha/2}=2.576$

Confidence interval for population proportion :-

$\hat{p}\pm z_{\alpha/2} \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.15\pm (2.576)(\sqrt{\dfrac{0.15(1-0.15)}{200}})\\\\\approx0.15\pm0.065\\\\=(0.15-0.065,\ 0.15+0.065)\\\\=(0.085,\ 0.215)$

Hence, a 99% confidence interval for the proportion of all individuals that use Firefox: $(0.085,\ 0.215)$

The lower limit on the 99% confidence interval = 0.085

6 0

3 years ago

Find.................

natka813 [3]

Its -7

use https://www.symbolab.com/solver/algebra-calculator

3 0

3 years ago

Help me with this please

tatyana61 [14]

Step-by-step explanation:

5x - 5° = 40° ( being vertically opposite angles)

5x = 40° + 5°

5x = 45°

x = 45°/ 5

x = 9°

Now

< 1 = 5 * 9° - 5 = 45° - 5° = 40°

Hope it will help :)

8 0

2 years ago