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fenix001 [56]
3 years ago
13

The base of a pyramid has n sides. write an expression for the number of faces of the pyramid.

Mathematics
1 answer:
Mandarinka [93]3 years ago
5 0
The base  is one face and there is one face for each of the sides of the base so the expression is  n + 1 (answer)
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Which of the following expressions is equal to -3x^2-27?
Iteru [2.4K]

Answer:

6

\sqrt{2}

3 0
3 years ago
Two more questions , 15 points.
Mumz [18]

The formula that is useful for solving both of these problems is ...

(v_2)^2-(v_1)^2=2ad\qquad\text{a=acceleration, d=distance}\\\\ \text{where $v_1$ and $v_2$ are initial and final velocities}

9. Given v₁=15, a=9.8, d=10, find v₂.

... (v₂)² = 15² + 2·9.8·10

... v₂ = √421 ≈ 20.5 . . . . m/s

10. Given d=12 m when a=-9.8 m/s² and v₂=0, find d when a=0.17·(-9.8 m/s²).

The formula tells us that d=(v₁)²/(2a), which is to say that the distance is inversely proportional to the acceleration. If acceleration is 0.17 times that on earth, distance will be 1/0.17 ≈ 5.88 times that on earth.

(12 m)/0.17 ≈ 70.6 m

7 0
3 years ago
Pls answer <br> take ur time
bekas [8.4K]

Answer:

y = 3/4x

Step-by-step explanation:

We need to find the slope of the line

We have point (0,0) and point (4,3)

m = (y2-y1)/(x2-x1)

    = (3-0)/(4-0)

     =3/4

The y intercept is 0 since it crosses the y axis at 0

The slope intercept form of the line is

y = mx+b

y = 3/4x +0

y = 3/4x

5 0
2 years ago
What is the slope of y=-1/2x+3
user100 [1]

Answer:

slope = - \frac{1}{2}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{1}{2} x + 3 ← is in slope- intercept form

with slope m = - \frac{1}{2}

7 0
3 years ago
Read 2 more answers
Please help worth 20 points! (this is legit my math grade .-.)
Natasha2012 [34]

Answer:

Step-by-step explanation:

a true

b false

5 0
2 years ago
Read 2 more answers
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