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3 years ago

Is a polyhedron basically a 3-D shape?

Mathematics

2 answers:

bazaltina [42]3 years ago

8 0

Yep! Poly means "many," and hedron means "face." It quite literally means many faces.

e-lub [12.9K]3 years ago

8 0

A polyhedron is a 3-D shape but it is the 3-D form of a 2-D shape from a pentagon upwards.

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14. If f(x) = 3x - 4 and g(x) = x2 - 4x + 6, then f(x) - g(x) for what values of x?

Ugo [173]

Answer:

X = 2

Step-by-step explanation:

6 0

2 years ago

This Venn diagram shows the pizza topping preferences for 9 students. Let event A = The student likes pepperoni. Let event B = T

victus00 [196]

Answer:

$P(A\ or\ B)=\frac{7}{9}$

Step-by-step explanation:

We need to use the formula to calculate the probability of (A or B) where

A=Probability a student likes pepperoni

B=Probability a student likes olive

A and B =Probability a student likes both toppings in a pizza

A or B =Probability a student likes pepperoni or olive (and maybe both), a non-exclusive or

The formula is

$P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)$

Since 6 students like pepperoni out of 9:

$P(A) = \frac{6}{9}$

Since 4 students like olive out of 9:

$P(B) = \frac{4}{9}$

Since 3 students like both toppings out of 9

$P(A\ and\ B) = \frac{3}{9}$

Then we have

$P(A\ or\ B)=\frac{6}{9}+\frac{4}{9}-\frac{3}{9}$

$P(A\ or\ B)=\frac{7}{9}$

7 0

3 years ago

I need help in confused

bixtya [17]

8 divided by 12 is about .67
the degrres fell .67 in 1 hr

8 0

3 years ago

Find the equation of a line that passes through the point (-2,3) and has a gradient of 3.

nadya68 [22]

Answer:

y = 3x+9

Step-by-step explanation:

The standard form of equation of a line is in the form y = mx + c

m is the gradient

c is the y intercept

Get the y-intercept

Substitute m = 3 and the point (-2, 3) into the formula y = mx+c

3 = 3(-2) + c

3 = -6+c

c = 3+6

c = 9

Get the required equation;

y = 3x + 9

Hence the required equation is y = 3x+9

5 0

3 years ago

PLEASE HELP Simplify (a^6)*(a^8)*(a^n)

Varvara68 [4.7K]

Answer:

$a^{14+n}$

Step-by-step explanation:

You add the exponents when the number/variable is the same, so:

6+8+n= 14+n

So:

$a^{14+n}$

4 0

3 years ago