3 years ago

A quadrilateral has exactly 3 congruent sides. Davis claims that the figure must be a rectangle. Why is his claim incorrect?

Mathematics

1 answer:

max2010maxim [7]3 years ago

3 0

A rectangle has two pairs of congruent sides, but not 4 congruent sides.

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Xian and his cousin Kai both collect stamps. Xian has 56 stamps, and Kai has 80 stamps. The boys recently joined different stamp

timofeeve [1]

Answer:

A.After how many months will Xian and Kai have the same number of stamps?

Step-by-step explanation:

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3 years ago

Chris is having custom t-shirts printed for a family reunion. The total cost of custom t-shirts, y, in dollars, for x t-shirts i

Nuetrik [128]

Answer:

C. Each additional t-shirt being printed will increase the total cost by $11.

Step-by-step explanation:

We know that the total cost of custom t-shirts, y, in dollars, for x t-shirts is given by:

$y = 11x + 25$

Here 11 is the price of the shirt, x is the number of shirts that are printed and 25 might be some additional charges.

For each additional shirt that is printed, the total price, y, will increase by $11 so the correct answer option is C.

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3 years ago

What does -$20 -$15 +$30 $2 Equal

ad-work [718]

Answer:

-3

Step-by-step explanation:

-20-15+30+2

-35+32

-3

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3 years ago

Complete the table below for the function y = -3x+7

KiRa [710]

Answer:

(x,y)--> (2,1), (4, -5), (7, -14), (9, -20), (11, -26)

Step-by-step explanation:

y = -3x + 7

substituting x-values in y= -3x + 7

x = 2

y= -3 × 2 + 7

= -6 + 7

= 1

x=4

y= -3 × 4 + 7

= -12 + 7

= -5

x=7

y= -3 × 7 + 7

= -21 + 7

= -14

x=9

y= -3 × 9 + 7

= -27 + 7

= -20

x=11

y= -3 × 11 + 7

= -33 + 7

= -26

6 0

3 years ago

Shown is a regular pentagon, find y.

timama [110]

Answer:

54 degrees

Step-by-step explanation:

Every side of a regular pentagon is same.

So we have an isosceles triangle. The correspond angle of y, must equal to y (degree) too.

Also, every inner angle of a regular pentagon is 360/5=72. So we can calculate angle y, by the equation y+y+72=180.

y=54

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3 years ago