X is 3!! you would set the equation as 4x+3=15. Subtract 3 from both sides to get 4x=12. Divide by 4, then you get your answer as x=3. hope this helped!!
Answer:
the longest side of the first triangle is 32 cm
Step-by-step explanation:
Given;
dimension of the smaller triangle = 4.5cm 6cm and 8 cm.
the longest side of this smaller triangle = 8 cm
Perimeter of the first triangle = 74 cm
let the increase in dimension of the similar first triangle = x
the longest side of the first triangle = 8x
4.5x + 6x + 8x = 74
18.5x = 74
x = 74/18.5
x = 4
the longest side of the first triangle = 8 x 4 = 32 cm
Answer:
y = 2x - 4
Step-by-step explanation:
<u>Step 1: Convert to slope intercept form which is y = mx + b</u>
y - 2 = 2(x - 3)
y - 2 + 2 = 2x - 6 + 2
y = 2x - 4
Answer: y = 2x - 4
Replace a with the length of the given leg and c with the length of the hypotenuse and solve for b:
7^2 + b^2 = 25^2
Simplify"
49 + b^2 = 625
Subtract 49 from each side:
b^2 = 625 - 49
b^2 = 576
Take the square root of both sides to solve for b:
b = √576
b = 24
