69 degrees because since angle CBE is a straight line ir adds up to 180 degrees and hence you add the angles but since the triangle is isosceles angle AEB is also 69 degrees

Step-by-step explanation:

180- 42 = 138 ÷ 2 = 69

4 0

3 years ago

If x-y=1 and xy= 56 then find the value of x+y

tester [92]

Answer:

x + y = ±15

Step-by-step explanation:

Step 1: Write out systems of equations

x - y = 1

xy = 56

Step 2: Rearrange 1st equation

x = y + 1

Step 3: Substitution

(y + 1)y = 56

Step 4: Distribute

y² + y = 56

Step 5: Solve for y

y² + y - 56 = 0

(y - 7)(y + 8) = 0

y = -8, 7

Step 6: Plug in y to find x

x - 7 = 1

x = 8

x - (-8) = 1

x + 8 = 1

x = -7

Step 7: Find answer

x + y = ?

8 + 7 = 15

-7 + -8 = -15

So both 15 and -15 could be the answer.

3 0

3 years ago

Read 2 more answers

A patio blueprint has a key that shows 1 inch is equal to 12 feet. If the owner wants the length to be 30 feet, how many inches

harkovskaia [24]

Answer:

hope it helps...

5 0

3 years ago

If winchester weighs 100 kilograms (220 pounds) and is 2 meters tall (6 feet 5 inches), his bmi would be

Rasek [7]

By definition, the body mass index (bmi) is given by:
$bmi = \frac{weight}{height ^ 2} 
$
Substituting values:
$bmi = \frac{100}{2^2}
$
Rewriting we have:
$bmi = \frac{100}{4}$
Making the corresponding calculations we have:
$bmi = 25
$
Answer:
The body mass index for winchester is given by:
$bmi = 25$

7 0

3 years ago