Answer:
13 1/3
Step-by-step explanation:
10 divided by 3/4 =10 times 4/3 =40 /3 = 13 1/3
sorry don´t really know how to explain my work i just kinda do it .plus it was on my homework .
Answer:
Option C is correct.
Step-by-step explanation:
y = x^2-x-3 eq(1)
y = -3x + 5 eq(2)
We can solve by substituting the value of y in eq(2) in the eq(1)
-3x+5 = x^2-x-3
x^2-x+3x-3-5=0
x^2+2x-8=0
Now factorizing the above equation
x^2+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
(x-2)=0 and (x+4)=0
x=2 and x=-4
Now finding the value of y by placing value of x in the above eq(2)
put x =2
y = -3x + 5
y = -3(2) + 5
y = -6+5
y = -1
Now, put x = -4
y = -3x + 5
y = -3(-4) + 5
y = 12+5
y =17
so, when x=2, y =-1 and x=-4 y=17
(2,-1) and (-4,17) is the solution.
So, Option C is correct.
The equation given above is written here below with all the terms transposed to only one side of the equation.
2x² + 3x + 8 = 0
The quadratic formula used for the determination of the roots is,
x = (-b +/- sqrt (b² - 4ac)) / 2a
In the quadratic equation above, we have the numerical coefficients.
a = 2
b = 3
c = 8
Substituting the known values,
x = (-3 +/- sqrt (3² - 4(2)(8))/ (2)(2)
x = -0.75 + 1.854i and x = -0.75 - 1.854i
By the calculated roots above, it is known that the roots are imaginary.
Answer:
31.4
Step-by-step explanation:
C = 2πr OR C = πd
But, we need to find r first.
![A = \pi r^2\\25\pi = \pi r^2\\\sqrt{25} = \sqrt{r^2} \\r=5\\\\C=2\pi r\\C=2\pi (5)\\C= 10\pi \\C= 31.4](https://tex.z-dn.net/?f=A%20%3D%20%5Cpi%20r%5E2%5C%5C25%5Cpi%20%3D%20%5Cpi%20r%5E2%5C%5C%5Csqrt%7B25%7D%20%3D%20%5Csqrt%7Br%5E2%7D%20%5C%5Cr%3D5%5C%5C%5C%5CC%3D2%5Cpi%20r%5C%5CC%3D2%5Cpi%20%285%29%5C%5CC%3D%2010%5Cpi%20%5C%5CC%3D%2031.4)
Answer:
270 times
Step-by-step explanation:
The number of times Indian Ocean is bigger than Colorado = 28,080,000 ÷ 104,000 = 270 times.