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3 years ago

How do you find the surface area for a 3d star

Mathematics

1 answer:

cluponka [151]3 years ago

8 0

Calculate the area of each side and find the sum of the areas of all sides to find the surface area of a star.

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Someone can help me, pleasee

eimsori [14]

Answer:

x+y-10 -1

Step-by-step explanation:

if x is 3 and y is 6 then 3+6= 9

9-10=-1

7 0

3 years ago

A tree forms a right angle with the ground. If you place the base of a 12-foot ladder 3ft from the tree, how high up the tree wi

Igoryamba

Answer: 12.37ft

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Step-by-step explanation:

The formula to find the missing side of a triangle is a^2 + b^2 = c^2

so all you have to do is put 3 and 12

3^2 + 12^2 = c^2

9 + 144 = c^2

153 = c^2

√153 = 12.37

7 0

4 years ago

3. Find the value of x.<br> (2x-71

fomenos

Wait is their only three answer choices? I got 40 but I’m guessing the closest one would be 36.5.

8 0

3 years ago

Read 2 more answers

Find the solutions to the equation by completing the square. x2-6x=7

lianna [129]

Subtract 7 from both sides

x^2 - 6x - 7 = 7 - 7

Simplify

x^2 - 6x - 7 = 0

Answer :

The final solutions to the quadratic equation are:

x = 7, -1

3 0

3 years ago

Graph the line that represents a proportional relationship between Y And x where the unit rate of change of y with their respect

aksik [14]

Answer:

$y=\frac{3}{8}x$

The graph in the attached figure

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Remember that

The unit rate of change is the same as the slope

In this problem

$m=\frac{3}{8}$

The linear equation is equal to

$y=\frac{3}{8}x$

To graph the line we need two points

we have (0,0) because the line passes through the origin

Determine other point

assume a value of x and calculate the value of y

For x=8

$y=\frac{3}{8}(8)=3$

The other point is (8,3)

Plot the points and join them to draw the line

The graph in the attached figure

3 0

3 years ago