Answer:
b = -10.5, a = 3.5
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
Find the two numbers their sum is -7 and their difference is 14.
a + b = -7
a - b = 14
<u>Step 2: Solve for a in the first equation</u>
a + b - b = -7 - b
a = -7 - b
<u>Step 3: Find the b in the second equation</u>
a - b = 14
(-7 - b) - b = 14
-7 - 2b + 7 = 14 + 7
-2b / -2 = 21 / -2
<em>b = -10.5</em>
<em />
<u>Step 4: Substitute into a</u>
a = -7 - b
a = -7 - (-10.5)
a = -7 + 10.5
<em>a = 3.5</em>
<em />
Answer: b = -10.5, a = 3.5
Answer:
(0.5,-6)
Step-by-step explanation:
mid point=(x1+x2)/2
=(-3+4)/2
= 1/2
=0.5
midpoint=(y1+y2)/2
=(-9+(-3))/2
=(-9-3)/2
=--12/2
=-6
When you have a right triangle, you can use the Pythagorean Theorem to find the missing side length. (this can only be used for RIGHT triangles)
Pythagorean Theorem:
a² + b² = c² [c is the hypotenuse, or the longest line]
Since you know b = 8 and c = √73, plug it into the equation
a² + 8² = (√73)²
a² + 64 = 73
a² = 9
a = √9
a = 3
Answer:
x-3
Step-by-step explanation:
Jerry is three years younger than Laura whose age is x.
Laura's age (x) – 3 years equals Jerry's age.
What does that mean? Sorry I am dumb
