All categories

4 years ago

What is the square root of 16

2 answers:

8 0

$The\ square\ root\ of\ 16:\\\\\sqrt{16}=4\ because\ 4^2=4\cdot4=16\\--------------------\\de finition\ of\ the\ square\ root:\ \sqrt{a}=b\ if\ b^2=a\ where\ a\geq0\ and\ b\geq0$

777dan777 [17]4 years ago

4 0

$\sqrt{16} = \sqrt{4\times 4} = \sqrt{4^2} =4^{\frac {2}{2}} =4^1=4$

You might be interested in

Laura has a step of 50cm She walks along by taking two steps forward and one step back. What is the least number of steps counti

Vilka [71]

Answer:

The least number of steps she takes to reach 20 m is 118 steps

Step-by-step explanation:

For Laura, the length of a walking step = 50 cm = 0.5 m

The repeating number of steps she takes = Two steps forward one step backwards

The number of forward steps it would take for her to reach 20 m = (20 m)/(0.5 m) = 40 steps

Given that she always takes two steps forward and one step backwards, we have;

The number of steps forward every three steps = 2 step forward + (-1) step (backward)

The number of steps forward every three steps = 2 - 1 = 1 step forward

To reach 39 steps forward, she would need 39 × 3 = 117 steps

To get to the 40 steps she needs just a step forward, making the total number of steps to reach 40 steps = 117 + 1 = 118 steps

Therefore, the least number of steps she takes to reach 20 m = 118 steps.

3 0

3 years ago

Read 2 more answers

An article presents a study of the failure pressures of roof panels. A sample of 15 panels constructed with 8-inch nail spacing

wariber [46]

Answer:

There is sufficient evidence to conclude that six inches spacing has a higher mean failure pressure than 8 inches

Reject $H_0\ at\ 5%$ level of significance

Step-by-step explanation:

From the question we are told that:

Sample size 1 $n_1=15$

Spacing 1 $s_1=8$

Mean 1 $\=x_1=8.48$

Standard deviation 1 $\sigma_1=0.96 kPa$

Sample size 2 $n_2=16$

Spacing 2 $s_2=6$

Mean 1 $\=x_1=9.93$

Standard deviation 1 $\sigma_1=1.02 kPa$

Generally the hypothesis is mathematically given as

Null $H_0:\mu_1-\mu_2$

Alternative $H_a:\mu_1\mu_2$

Generally the equation for pooled estimate is mathematically given by

$S=\sqrt{\frac{(n_1-1)\sigma_1^2+(n_2-1)\sigma_2^2}{n_1+n_2-2} }$

Therefore

$S=\sqrt{\frac{(15-1)0.96^2+(16-1)1.02^2}{15+15-2} }$

$S=0.9905$

Generally the equation for test statistics is mathematically given by

$t=\frac{\=x_1+\=x_2}{S\sqrt{\frac{1}{n _1}+\frac{1}{n_2}}}$

$t=\frac{\=8.48-9.93}{0.9905\sqrt{\frac{1}{15}+\frac{1}{15}}}$

$t=-4.00091$

Therefore From table

$P value=P(t_{15+15-2}=4.00091)$

$P value=0.00041918$

$P$

Therefore

There is sufficient evidence to conclude that six inches spacing has a higher mean failure pressure than 8 inches

Reject $H_0\ at\ 5%$ level of significance

3 0

3 years ago

BRAINLIEST URGENTTT

marusya05 [52]

Answer:

$890,600

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is 0.11 in simplest form

valentinak56 [21]

0.11 in simplest form is 11/100

7 0

3 years ago

Number sense write a six-digit number in which the digit 4 has the value of 40,000

topjm [15]

You just need to add any digit in front of 40,000 for a 6-digit number meeting those requirements.

Hope this helps!

4 0

3 years ago