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3 years ago

Help ASAP with the question.

Mathematics

2 answers:

givi [52]3 years ago

6 0

The answer is 5 x 10^10

Hope this helped! :)

Darya [45]3 years ago

6 0

Subtraction in scientific notation is pretty similar to adding, first because the exponents are the same, you can subtract 4 from 9 and =get 5 and because the exponents need to be the same, you just keep 10^10

Your final answer is 5x10^10

Hope this helped!

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The areas a circle is 28.26 square centimeters. What is the circles radius

Tanzania [10]

Answer:

Step-by-step explanation:

area πr²=28.26

r²=28.26/π

r=√(28.26/π)≈ 9cm

4 0

3 years ago

Can someone please help me! Big ideas 8.4 number 20

Harlamova29_29 [7]

<u>Answer:</u> The perimeter is about 20.26 units

<u>Step-by-step explanation:</u>

To calculate the distance between the points, we use the formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

where,

d = distance

$x_2\text{ and }x_1$ are the coordinates of the points on x-axis

$y_2\text{ and }y_1$ are the coordinates of the points on y-axis

For the given points:

B(0,3), C(4,-1), E(2,-3) and F(-2,1)

Calculating the distance BC:

$x_2=4\\x_1=0\\y_2=-1\\y_1=3$

Putting values in above equation, we get:

$BC=\sqrt{(4-(0))^2+(-1-3)^2}\\\\d=\sqrt{16+16}=5.66units$

Calculating the distance CE:

$x_2=2\\x_1=4\\y_2=-3\\y_1=-1$

Putting values in above equation, we get:

$CE=\sqrt{(2-(4))^2+(-3-(-1))^2}\\\\d=\sqrt{36+4}=4.47units$

To calculate the perimeter of a rectangle, we use the equation:

$Perimeter=2(l+b)$ ....(1)

where,

l = length of the rectangle = BC = 5.66 units

b = breadth of the rectangle = CE = 4.47 units

Putting values in equation 1, we get:

$Perimeter=2(5.66+4.47)\\\\Perimeter=20.26 units$

Hence, the perimeter is about 20.26 units

7 0

3 years ago

A study reported that finger rings increase the growth of bacteria on health-care workers' hands. Research suggests that 31 perc

raketka [301]

Answer:

Despite some evidence that suggest that finger ring use is associated with higher bacterial

colonization, healthcare providers continue to wear finger rings in a healthcare setting. The aim

of this systematic review was to synthesize the evidence to date regarding whether finger ring

use increases bacterial colonization of healthcare providers' hands. Articles that studied the

association finger ring use with hand hygiene and bacterial colonization were searched using

PubMed, Google Scholar, and Georgia State University's online library systems. The overall

results of this review suggest that finger ring use does increase the bacterial colonization on the

hands of HCPs but not with significant difference when compared to no finger ring use;

therefore, further research needs to be conducted to decide whether finger rings should be used in

a healthcare setting or not.

6 0

4 years ago

Read 2 more answers

Sos easy Math like first grade

Advocard [28]

I think it's B. Because of the places...

3 0

4 years ago

Read 2 more answers

39 is what percent of 156

Romashka-Z-Leto [24]

39 is 25% of 156.
Work: 156 x 0.25 = 39 which means that 25% of 156 is 39.

Hope this helps and please mark as brainliest!

8 0

3 years ago