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2 years ago

13

Can the following biconditional be rewritten as two conditional statements? If so, identify the two conditionals. If not, explai

n why.
"A quadrilateral is a trapezoid if and only if it has exactly one pair of parallel sides."

1 answer:

Alenkinab [10]2 years ago

6 0

Yes. 1 of them is ' a quad. is a trap.' and the 2nd one is 'trap. has at least 1 pair of parallel sides'

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A triangular fence is being built to surround a garden. If two of the side lengths must be 4 feet and 12 feet, which inequality

babymother [125]

The third side cannot be 16 or greater than 16.
also it must be greater than 8 ( because 4+8 = 12 = the other sde)

The answer is B 8 < x < 16

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3 years ago

Kiran has a toy car collection. He keeps some in a display case and the rest on the wall. 195 of his toy cars are on the wall, a

morpeh [17]

35% are in display cases which means 65% are on the wall.

this means 195 cars is 65% of the collection.

to get total number of cars in the collection divide 195 by 65%

195/0.65 = 300

answer: 300 total cars

4 0

2 years ago

What's 4x + 3 = 2x + 17

Svet_ta [14]

Answer:

x=7

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

2x+3=17

Move all terms not containing x to the right side of the equation.

2x=14

Divide each term by 2 and simplify.

x=7

7 0

3 years ago

The radius of a cylindrical vessel is 7 cm and height is 1400 m . Find the cost of painting its inner curved surface area at the

Olegator [25]

Answer:

Cost = 616000 DHS per square centimetre.

Step-by-step explanation:

curved surface of a cylinder = 2 $\pi$ rh

r = 7 cm

h = 1400 m = 140000 cm

The outer curved surface area of the cylinder = inner curved surface area of the cylinder

The inner curved surface of the cylinder = 2 $\pi$ rh

= 2 x $\frac{22}{7}$ x 7 x 140000

= 2 x 22 x 1 x 140000

= 6160000

The inner curved surface of the cylinder is 6160000 square centimetre.

But, the cost of painting is at the rate of 10 DHS per square centimetre.

The inner curved surface of the cylinder = 6.16 x $10^{6}$ square centimetre.

cost of painting the inner curved surface area = $\frac{6.16*10^{6} }{10}$

= 616000 DHS per square centimetre

The cost of painting the inner surface is 616000 DHS per square centimetre.

6 0

2 years ago

Need help question 11

Helga [31]

I am sorry i dont understand

5 0

2 years ago