Answer:
=5
Step-by-step explanation:
(5)=-7/2(-2)-7
5=7-7
=5
Answer:

Step-by-step explanation:
Angle <em>b</em> and 135° form a <em>linear pair</em>, so when summing them up to 180°, you will have 45° left over:

Now, by the <em>Vertical</em><em> </em><em>Angles</em><em> </em><em>Theorem</em>, angle <em>a</em> and 70°, in this case, are to be in <u>congruence</u> with each other, so you have that.
Now you must find the the measure of angle <em>c</em> sinse you have already found the measure of two angles already:

I am joyous to assist you at any time.
Answer:
48 kg
Step-by-step explanation:
She can make 24 kg of dough in 3 hours
Multiply each by 2
She can make 24*2 kg of dough in 3*2 hours
She can make 48 kg of dough in 6 hours
Answer:
225/4
Step-by-step explanation:
x²– 15x – 23 = 0
To complete the square
We take to coefficient of the x term
-15
divide by 2
-15/2
Square it
225/4
Add it to each term