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2 years ago

Referring to the figure, find the unknown

Mathematics

1 answer:

yulyashka [42]2 years ago

3 0

Answer:

Step-by-step explanation:

45-45-90 triangles always have two legs that are the same length, and a hypotenuse that is the length of the leg times sqrt 2.

Given the position of x, we know it is a leg and must be equal to the other leg, which is 19.

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Y = x2 – 15x + 26 y = -3x - 6

pychu [463]

Answer:

um im pretty sure y = -15 and x = -17 but im pretty sure i did that wrong too lol sorry if it is wront

Step-by-step explanation:

5 0

2 years ago

a father is twice as old as his son. 20 yrs ago the father was four times as old as his son. find their present ages

Roman55 [17]

Answer:

son's present age = 30

father's present age=60

Step-by-step explanation:

his son's present age = x years

his father's present age = 2x years

before 20 years his son's age=(x-20) years

before 20 years father's age=(2x-20) years4(x-20)=(2x-20)

4x-80=2x-20

4x-2x=80-20

2x=60

x=30

5 0

1 year ago

What is the surface area? 10 ft 8 ft 10 ft 12 ft 10 ft

amid [387]

Answer:

12×8/2=48

10×10=100

2(48)+3(100)

96+300= 396ft²

5 0

1 year ago

Simplify the expression. 11z - 11z

Yuliya22 [10]

Answer:

0=0

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Please help. Screenshot attachedn

NARA [144]

Answer:

x = -0.17 and x = -5.83

Step-by-step explanation:

We are asked to solve the quadratic equation

$x^2+6\,x+1=0$

We use the quadratic formula using a = 1, b = 6 and c = 1

for a general quadratic equation of the form: $ax^2+bx+c=0$

Then, the solutions are given by;

$x=\frac{-6+/-\sqrt{36-4\,(1)\,(1)} }{2} =\frac{-6+/-\sqrt{32} }{2}$

which produces the two following answers (rounded to two decimals):

x = -0.17 and x = -5.83

8 0

3 years ago