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4 years ago

How many vertices are in a polyhedron with 6 triangular faces?

Mathematics

2 answers:

Bingel [31]4 years ago

6 0

I believe it will be 36 Im sorry if im wrong.

dolphi86 [110]4 years ago

6 0

I think it is 36 too and sorry if i answered late

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The area of a parallelogram is 49.7 cm 2 , and the base of the parallelogram is 3.5 cm. What is the height of the parallelogram

brilliants [131]

Answer:

14.2 cm

Step-by-step explanation:

A parallelogram is a quadrilateral (a four sided object) with parallel sides

Some of the characteristics of a parallelogram includes :

1. Opposite sides and angles are congruent .

2. Opposite angels are congruent

3. Consecutive angles are supplementary

4. The diagonals bisect each other

Area of a parallelogram = base x height

49.7 = 3.5 x height

height = 49.7 / 3.5 = 14.2 cm

3 0

3 years ago

PLEASEEEE HELPPP MEEE <br> 6 and 7 PLEASE

Nitella [24]

Answer:

Question 6

$\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8$

Question 7

The width is 2x.

Step-by-step explanation:

Question 6)

Expand

$(5a+2)(a+4)$

solving to the expand

$(5a+2)(a+4)$

$\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$

$a=5a,\:b=2,\:c=a,\:d=4$

so the expression becomes

$=5aa+5a\cdot \:4+2a+2\cdot \:4$

$=5aa+5\cdot \:4a+2a+2\cdot \:4$

$=5a^2+20a+2a+8$

adding similar elements: 20a+2a=22a

$=5a^2+22a+8$

Hence,

$\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8$

Question 7)

Given

$A\:=\:8x^2$

$l=4x$

Using the formula

width = Area/Length

$=\:\frac{8x^2}{4x}$

$=2x$ ∵ $\mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2$

Therefore, the width is 2x.

5 0

3 years ago

Answer these 2 different questions ( i am so confused on this hellp!!)

Dmitry [639]

6) above 7) 0.058 or 0.048

5 0

2 years ago

For a quantity that changes frequently from month to month, the best kind of graph is a pie chart.

lana66690 [7]

For a quantity that changes frequently from month to month, the best kind of graph is a pie chart.a true

3 0

4 years ago

Read 2 more answers

a bag has red, green and blue marbles. The probability of selecting a red marble is 1/3 and the probability of selecting a green

Minchanka [31]

Answer:

I don't give answers sorry.

Step-by-step explanation:

What you would do is take 1 and subract the two probabilites from it. The equation should be $1-\frac{1}{3} -\frac{2}{5}$ . You can find a common denominator by making it both 15.

3 0

3 years ago