Answer: the number is - 18
Step-by-step explanation:
Let the number be represented by x.
If the sum of a number and seven is doubled, the result is four less than the number. The expression would be
2(x + 7) = x - 4
We would open the bracket on the left hand side of the equation by multiplying each term inside the bracket by 2. It becomes
2x + 14 = x - 4
Subtracting 14 and x from the left hand side and the right hand side of the equation, it becomes
2x + 14 - 14 - x =x - x - 4 - 14
x = - 18
Answer:
A) -1/5
Step-by-step explanation:
Let slope of line s be m₁.
m₁ = 5
Let the slope of L be m₂
As s and L are perpendicular,
m₁ * m₂ = -1
5 * m₂ = -1
m₂ = -1 /5
Answer:
c. 
Step-by-step explanation:
I'd generally say this would depend on what your definition of proportional is, but there's still one clear answer in this case regardless.
Here, a direct proportional relationship will pass through (0, 0), meaning it will not have a y-intercept and y will be 0 when x is 0.

Because b is the y-intercept, C is the answer as it is the only answer that does not have one.
1/4 is the fraction for the number of parents who prefer year round school.
Answer:
Is a right triangle
Step-by-step explanation:
step 1
Find the measure of angle C
Remember that
The sum of the internal angles of a triangle must be equal to 180 degrees
so

substitute the given values


therefore
The triangle is a right triangle, because has a internal angle of 90 degrees