<span>let's analyze two cases
</span>
case A) <span>2(√x)−4=10
2</span>√x=10+4----> 2√x=14----> √x=14/2----> square---> x=7²----> x=49
case B)
2√(x-4)=10
√(x-4)=10/2-----> square---> x-4=5²----> x=25+4-----> x=29
Answer:
Hello There!!
Step-by-step explanation:
The answer is 10.00
hope this helps,have a great day!
~Pinky~
Answer:
(-2,-5)
Step-by-step explanation:
y = 2x-1
3x-y = -1
We can use substitution
3x - (2x-1) = -1
Distribute the minus sign
3x -2x+1 = -1
x +1 =-1
Subtract 1 from each side
x+1-1 = -1-1
x=-2
Now we need to find y
y = 2x-1
y = 2(-2) -1
y = -4-1
y = -5
(-2,-5)
Answer:
x = 14.02 units
Step-by-step explanation:
Finding unknown value using Pythagorean theorem:
This is an isosceles trapezium. The two perpendiculars divide the trapezium into two congruent triangles and a rectangle. Let the base of the triangle by 'y'. We can find the value of 'y' using Pythagorean theorem.
In ΔABC,
AC² = AB² + BC²
19² = 17 ² + y ²
361 = 289 + y ²
361 - 289 = y ²
y ² = 72
y =√72
y = 8.49
x = 31 - 8.49 - 8.49
x = 14.02
Answer:
<h2>34 earrings</h2>
Step-by-step explanation:
Step one:
given that the total lenght of the wire is 25 1/2 inches
in decimal, this is 25.5 inches
we are told that each earring requires 3/4 in of wire
in decimal this 0.75 in
Step two:
<em>The number of earrings that can be mad is found by dividing the total length of wire by the length needed to make one earring</em>
The number of earrings that can be made is given as
=25.5/0.75
=34 earrings