Answer:
Look at my ista
Step-by-step explanation:
Given:
ABC is an isosceles triangle in which AC =BC.
D and E are points on BC and AC such that CE=CD.
To prove:
Triangle ACD and BCE are congruent.
Solution:
In triangle ACD and BCE,
(Given)
(Common angle)
(Given)
In triangles ACD and BCE two corresponding sides and one included angle are congruent. So, the triangles are congruent by SAS congruence postulate.
(SAS congruence postulate)
Hence proved.
9514 1404 393
Answer:
Step-by-step explanation:
The system of equations can be written ...
n + d = 20 . . . . . . . . coins in the jar
5n +10d = 130 . . . . . value in cents
_____
Using the first equation, we can write an expression for n:
n = 20 -d
We can substitute this into the second equation:
5(20 -d) +10d = 130
100 +5d = 130 . . . . . . simplify
5d = 30 . . . . . . . . . . . . subtract 100
d = 6 . . . . . . . . . . . . divide by 5
n = 20-d = 14
The jar contains 14 nickels and 6 dimes.
Answer:
Step-by-step explanation:
Answer:
y=-3x-4
Step-by-step explanation:
To put this in slope-intercept first put it in slope-point then simplify. So in slope-point, this would be y - 5 = -3 (x + 3), then solve
First, distribute the -3
y-5 = -3x-9
Then, move the five to the right side by adding it to both sides
y=-3x-4, therefore the slope is -3 and the intercept is -4.
