Answer:
1st option
Step-by-step explanation:
In right triangle BCD
cosC = =
( multiply both sides by a )
b - x = acosC ( subtract b from both sides )
- x = acosC - b ( multiply through by - 1 )
x = b - acosC
Nancy orders computer tables from a furniture showroom that charges $65 per table and an additional $30 for transportation. Rita
2 answers:
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Answer <u>(assuming it can be in slope-intercept format)</u>:
Step-by-step explanation:
When knowing the y-intercept of a line and its slope, we can write an equation representing it in slope-intercept form, or .
1) First, find the slope of the equation. Use the slope formula, , to find the slope. Substitute the x and y values of the given points into the formula and simplify:
Thus, the slope is .
2) Usually, we would have to use one of the given points and the slope to put the equation in point-slope form. However, notice that the point (0,7) has an x-value of 0. All points on the y-axis have an x-value of 0, thus (0,7) must be the y-intercept of the line. Now that we know the slope of the line and its y-intercept, we can already write the equation in slope-intercept format, represented by the equation . Substitute
and
for real values.
Since represents the slope, substitute
in its place in the equation. Since
represents the y-intercept, substitute 7 in its place. This gives the following equation and answer:
Answer:
Therefore the co-ordinate of the point on the line segment from (-9,-1) to(-9,-10) into a ratio internally is (-9,-7).
Therefore the co-ordinate of the point on the line segment from (-9,-1) to(-9,-10) into a ratio internally is (-9,-19).
Step-by-step explanation:
Given points are (-9,-1) and (-9,-10)
If a point divides the line segment by joining two points (x₁,y₁) and (x₂,y₂) into a ratio m:n internally.
Then the point of the coordinate is .
If a line segment is externally divided into a point by joining two points (x₁,y₁) and (x₂,y₂) with m: n ratio.
Then the point of the coordinate is .
Internally
The co-ordinate of the point is
Externally
The co-ordinate of the point is
= (-9,-19)