Using the correct number of significant figures?

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

3 0

For seven it would be 93.1, 3 sig figs and same for ten. It would be 2.78*10^3

You might be interested in

Does someone know the answer

seropon [69]

11 square. units × 7 square. units × 1/2= B. 38.5 square. units.

7 0

2 years ago

Which equation represents a line that intersects the line 2y − 4x = 3? A.-2y + 4x = 1 B. 3y − 6x = 6.5 C. y − 2x = 3 D. -2y − 4x

irga5000 [103]

Convert all the equations to slope-intercept form:
$2y-4x=3 \ \ \ |+4x \\
2y=4x+3 \ \ \ |\div 2 \\
y=2x+\frac{3}{2}$

$A. \\
-2y+4x=1 \ \ \ |-4x \\
-2y=-4x+1 \ \ \ |\div (-2) \\
y=2x-\frac{1}{2} \\ \\
B. \\
3y-6x=6.5 \ \ \ |+6x \\
3y=6x+6.5 \ \ \ |\div 3 \\
y=2x+\frac{13}{6}$

$C. \\
y-2x=3 \ \ \ |+2x \\
y=2x+3 \\ \\
D. \\ 
-2y-4x=3 \ \ \ |+4x \\
-2y=4x+3 \ \ \ |\div (-2) \\
y=-2x-\frac{3}{2}$

Lines A, B and C have the same slope as the line 2y-4x=3, so they are parallel and don't intersect it.
Line D has another slope, so it intersects the line 2y-4x=3.
The answer is D.

3 0

3 years ago

How would I solve for this ?

Daniel [21]

Multiply the length and width for a rectangle like the one shown.
5.3(2.6) = 13.78 square yards.

3 0

2 years ago

What percent of 863.6 is 380

Aleks04 [339]

Hello there! To solve types of questions like these, we can write and solve a proportion. We are looking for the percentage of 380 out of 863.6. Let's set up the proportion like this: 380/863.6 = x/100. Cross multiply the values in order to get 38,000 = 863.6x. Now, divide each side by 863.6 to isolate the "x". 38,000/863.6 is 44.00185271 or 44 when rounded to the nearest whole number. 380 is appox. 44% of 863.6.

4 0

2 years ago

What is the domain of the<br> quadratic parent function y=x2?

hichkok12 [17]

Answer:

$\Large \boxed{\mathrm{All \ real \ numbers}}$