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Greeley [361]
3 years ago
9

9-78 help me show work I need all ur help !

Mathematics
1 answer:
vaieri [72.5K]3 years ago
3 0
Angle 4 and 1 are the same. Since angle 4 is 49 degrees so is angle 1. So just plug 49 into the equation for angle 1 and that would look like 49=3x-18. Then solve. Check your work with other equations given.
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What is the surface area of the triangular prism? (please help)
hram777 [196]

Answer:

72 sq ft.

Step-by-step explanation:

Surface area of Triangular prism=[2*(1/2)*3*4]+(5*5)+(3*5)+(4*5)=12+25+15+20=72 sq ft.

6 0
3 years ago
Mai runs around a 400-meter track at a constant speed of 200 meters per minute. How many minutes does it take Mai to complete 4
Margaret [11]

Answer:

8 min

Step-by-step explanation:

4 0
3 years ago
1-:4(x-3)=5 what is x
Mkey [24]

Answer:

x = 23

Step-by-step explanation:

1/4(x-3)=5

Multiply both sides by 4.

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4 0
3 years ago
If the point (x,-1) is on the unit circle what is the value of x
finlep [7]
A unit circle has its center at the origin and has a radius of one. It is modeled by the equation
x² + y² = 1

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4 0
4 years ago
May I know why is the answer 1/2? Any idea <br><br> Thank you!
ElenaW [278]

let's put value of t in equation.

x = 2√t

x = 2√y

x/2 = √y

(x/2)^2 = y

y = x^2 /4

now let's differentiate it with respect to x.

dy/dx = 2x/4 = x/2

differentiating again wrt to x

d^2y/dx^2 = 1/2

8 0
3 years ago
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