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3 years ago

6

Albie wants to build a ramp from his porch to a point on the ground 4 feet away from the base of the porch. What is the length,

in feet, of the ramp if the porch has a height of 3 feet?

2 answers:

Andrew [12]3 years ago

4 0

The answer is 12 feet

blagie [28]3 years ago

3 0

12 feet I am pretty sure

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6x-8 = -4x+7 solve for x

Fantom [35]

Answer:

so look

Step-by-step explanation:

6x=7+8

2 Simplify 7+87+8 to 1515.

6x=156x=15

3 Divide both sides by 66.

x=\frac{15}{6}x=

6

15

4 Simplify \frac{15}{6}

6

15

to \frac{5}{2}

2

5

.

x=\frac{5}{2}x=

2

5

Done

Decimal Form: 2.5

5 0

3 years ago

Read 2 more answers

A group of 2n people, consisting of n men and n women, are to be independently distributed among m rooms. Each woman chooses roo

vfiekz [6]

Step-by-step explanation:

Assume that

$X_i = \left \{ {{1, If , Ith, room, has,exactly, 1,man, and , 1,woman } \atop {0, othewise} \right.$

hence,

$x = x_1 + x_2+....+x_m$

now,

$E(x) = E(x_1+x_2+---+x_m)\\\\E(x)=E(x_1)+E(x_2)+---+E(x_m)$

attached below is the complete solution

7 0

3 years ago

A bouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous

ahrayia [7]

Answer:

0.4 ft

Step-by-step explanation:

It can be convenient to let a spreadsheet compute the values for you. Here, we have written an explicit formula for the height of the n-th bounce:

h = 5.5×0.64^(n-1)

We have written the formula this way because we are given the height of the first bounce, not the starting height. Each bounce multiplies the height by a factor of 0.64. Then the 7th bounce will have a height of ...

h = 5.5×0.64^6 ≈ 0.378 ≈ 0.4 . . . . feet

6 0

4 years ago

ollegr [7]

Answer:

$FC=25.9$

Step-by-step explanation:

<u>Congruent Triangles</u>

The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.

Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

$13x-16=4x+11$

Solving

$9x=27$

$x=3$

The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

$13x-16=23$

Or

$4x+11=23$

Thus

$FD^2=12^2+23^2=673$

Solving

$FD=\sqrt{673}$

$\boxed{FC=25.9}$

5 0

3 years ago

Help me PLEASEEEEEEEEEEEEE

steposvetlana [31]

Answer: d

Step-by-step explanation:

its d

4 0

3 years ago