Ask question

Ask question

All categories

3 years ago

14

The perimeter of a square with side length s is P=

1 answer:

ss7ja [257]3 years ago

7 0

Answer:

4s

Step-by-step explanation:

P=4s

You might be interested in

Simplify the function c(x)=x^2+4x-5 over x+5

kolbaska11 [484]

<span>x2</span><span> + </span>4x<span> = </span>5<span>. </span><span>x2</span><span> + </span>4x<span> = </span>5<span>. </span><span>x2</span><span> + </span>4x<span> – </span>5<span> = 0

I think, but I may be wrong.</span>

3 0

3 years ago

Read 2 more answers

What is the ratio of 3 and 5

-Dominant- [34]

Answer:

in regards to ratios, think of fractions. If we have a ratio of 3:5, that means that in fraction form we can think of it as

3

---

5

If put this into a calculator (3 divided by 5), you will get a decimal of 0.6 as the answer. This means that any two numbers that divide and come to the same answer are equivalent to 3/5.

Now, from what it appears you are asking, they want you to find two other numbers that come to the same ratio / answer of 0.6, and that these numbers should be double. To do this, simply multiply the numerator and denominator by 2, which is double.

3 x 2 = 6

5 x 2 = 10

So our fraction now is

6

---

10

If you put that into a calculator (6 divided by 10), it will come to the same answer of 0.6. Therefore, this fraction / ratio is equivalent to the original.

If your answer is expected to be in ratio format, then it should be 6:10

Step-by-step explanation:

please mark me as brainlist please

6 0

3 years ago

Read 2 more answers

Here is part of a train timetable.

Fofino [41]

He has to wait 13 minutes for the 7:18 train

5 0

3 years ago

2x + 6 = x – 1<br> Real solutions

pogonyaev

Answer:

x = -7

Step-by-step explanation:

2x+6 = x-1

add -6 to both sides

2x = x-7

add -x to both sides

x = -7

6 0

3 years ago

Park officials make predictions of times to the next eruption of a particular geyser, and collect data for the errors (minutes

nalin [4]

Answer:

a) Null hypothesis: $\mu =0$

Alternative hypothesis: $\mu \neq 0$

b) t =-7.44

c) $p_v = 2*P(t_{98}$

d) Reject Null hypothesis. The is enough evidence to conclude that the mean prediction error is not equal to 0.

We reject the null hypothesis because the $p_v$ . So we can conclude that the difference is significantly different from 0 at 5% of significance.

Step-by-step explanation:

Assuming this output:

$t_{difference}=-0.395$

t(observed value) =-7.44

t(Critical value )= 1.984

DF = 98

p value (two tailed) < 0.0001

$\alpha =0.05$

a) What are the null and alternative hypothesis

Null hypothesis: $\mu =0$

Alternative hypothesis: $\mu \neq 0$

The reason is because the output says a bilateral test so for this case w eselect this option.

b) Identify the statistic

The correct formula for the statistic is given by:

$t=\frac{\bar X_1 -\bar X_2 -0}{\sqrt{(\frac{s^2_1}{n_1}+\frac{s^2_2}{n_2})}}$

Based on the output the calculated value its t =-7.44

c) Identify the p value

We have the degrees of freedom given 98

Based on the alternative hypothesis the p value is given by:

$p_v = 2*P(t_{98}$

d) State the final conclusion that addresses the original claim

Reject Null hypothesis. The is enough evidence to conclude that the mean prediction error is not equal to 0.

We reject the null hypothesis because the $p_v$ . So we can conclude that the difference is significantly different from 0 at 5% of significance.

4 0

3 years ago