Answer:
The equation of the straight line in point-slope form
The equation of the straight line
7x -9y +36 =0
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the points (0,4) and (-9,-3)
The slope of the line
<u><em>Step(ii):-</em></u>
Equation of the straight line passing through the point (0,4) and having slope m = 7/9
9 y - 36 = 7x
9y = 7x + 36
Slope - intercept form
<u><em>Final answer:-</em></u>
The equation of the straight line in point-slope form
The equation of the straight line
7x -9y +36 =0
What does Y equal I need that to be able to help you
Answer: The car will skid 200 miles
Step-by-step explanation:
The formula S= 7/2√2D
can be used to approximate the speed S, in miles per hour, of a car that has left skid marks of length D, in feet. To determine how far a car will skid at 70 mph, we will substitute 70 mph for S in the formula. It becomes
70 = 7/2√2D
We will take squares of both sides. This is to simplify the square root on the right had side of the equation. It becomes
70^2 = 7^2/2^2(√2D)^2
4900 = 49/4 × 2D
4900 = 49D/2
Cross multiplying,
49D = 2 × 4900 = 9800
D = 9800/49 = 200
Answer:
= The exponent is 12
Step-by-step explanation:
(9.1 × 10^9)(7.5 × 10^2)
When multiplying terms in scientific notation, we multiply the numbers in front and add the exponents
(a* 10^b) (c* 10^d) = ac * 10^(b+d)
(9.1 × 10^9)(7.5 × 10^2) = (9.1*7.5) * 10^(9+2)
=68.25 * 10^11
But this is not proper scientific notation. We can only have 1 number in front of the decimal. We need to move the decimal 1 place to the right. That adds 1 to the exponent.
=68.25 * 10^11 = 6.825 * 10^(11+1)
= 6.825 * 10^12
