Which pair of figures has the same number of faces as vertices

Mathematics

1 answer:

ira [324]3 years ago

3 0

Answer:

1.triangular prism and triangular pyramid

2. triangular prism and rectangular prism

3. rectangular pyramid and triangular pyramid

4. rectangular pyramid and rectangular prism

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Solve the equation on the<br> interval [0, 27r).<br> 4(sin x)2 - 2 = 0

Ket [755]

$4[sin(x)]^2 - 2 = 0\implies 4[sin(x)]^2=2\implies [sin(x)]^2=\cfrac{2}{4}\implies [sin(x)]^2=\cfrac{1}{2} \\\\\\ sin(x)=\pm\sqrt{\cfrac{1}{2}}\implies sin^{-1}[sin(x)]=sin^{-1}\left( \pm\sqrt{\cfrac{1}{2}} \right)\implies x=sin^{-1}\left( \pm\sqrt{\cfrac{1}{2}} \right)$

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2 years ago

What is the slope of a line that contains the points (12,17) and (-8,-17)

professor190 [17]

$\frac{y2 - y1}{x2 - x1}$
$\frac{ - 17 - 17}{ - 8 - 12} = \frac{ - 34}{ - 20} = \frac{17}{10}$
Alternative forms:
$1 \frac{7}{10} \: or \: 1.7$
Slope: 17/10
Equation : y= 17/10x

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3 years ago

Iel travels 400 miles in 8 hours. What is her rate of change or speed? A) 40 miles per hour B) 50 miles per hour C) 55 miles per

kupik [55]

The speed is 400/8=50mph

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3 years ago

APEX

Natalka [10]

The answer would be D. Conditional Statement

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Sergio039 [100]

(2/3)x+4= 7

Subtract 4 from both sides
(2/3)x= 3

Divide both sides by 2/3. To divide by a fraction, multiply the first number by the reciprocal of the second.
3*3/2= 9/2

Final answer: 9/2 or 4.5

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3 years ago