Answer:
18. x= 15
19. x = 32.5
20. 82.097
Step-by-step explanation:
because any trianglw with 65 degrees the other abgle will be equal making the side equal as well
180-115= you know
The expression y = 4.998 · is the exponential function that passes through the points (- 1, 5 / 3) and (3, 135).
<h3>How to derive an exponential function that passes through two given points</h3>
Herein we find the location of two points set on Cartesian plane that belongs to an exponential function of the form:
Where:
- A - y-Intercept of the exponential function.
- B - Growth factor
- x - Independent variable.
- y - Dependent variable.
Which is equivalent to the following logarithmic expression:
㏑ y = ㏑ A + B · x
If we know that (x₁, y₁) = (- 1, 5 / 3) and (x₂, y₂) = (3, 135), then the following system of equations is generated:
㏑ (5 / 3) = ㏑ A - B
㏑ 135 = ln A + 3 · B
Then, we solve the system by numerical methods:
㏑ A = 1.609 (A = 4.998), B = 1.098
And the exponential function is equal to y = 4.998 · .
To learn more on exponential functions: brainly.com/question/11487261
#SPJ1
_Award brainliest if helped!
$ 65 Dress Final Price :
65 + (7% of 65) - (20% Of 65)
= 65 + 0.07*65 - 0.2*65
= $56.55
Answer:x=14.333
Step-by-step explanation:
Answer:
x= -2
Step-by-step explanation:
suppose,
the number is x
so,
Four more than 6 times a number = 6.x+4=6x+4
9 times the number increased by 10 =9x+10
Now,
6x+4 = 9x+10
⇒9x-6x=4-10
⇒3x=-6
⇒x=- 6/3 [divide both sides by 3 ]
⇒x= -2