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3 years ago

Identity each pair of angles

Mathematics

2 answers:

ElenaW [278]3 years ago

5 0

Do you have a protractor? You’ll need one measure the angles.

daser333 [38]3 years ago

3 0

Answer:

∠x and ∠y are a pair CORRESPONDING ANGLES.

Step-by-step explanation:

Corresponding Angles: The angles formed on a same side of traversal when it passes through two parallel lines is called corresponding angles.

Corresponding angles are non- adjacent in nature

Also they are congruent to each other as they lie between the same parallel lines.

Here, ∠x and ∠y are a pair of CORRESPONDING ANGLES.

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A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator

JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

$\frac{37}{19}$ * $\frac{3}{1}$ = 37! $\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}$ = 53017895700

The number of possible ways to choose 20 calculators out of 40 calculators will be:

$\frac{40}{20}$ = $\frac{40!}{20!(40-20!)}$ =137846528820

The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%

4 0

3 years ago

Define product. give an example of two whole number factors with a product of 9

Kryger [21]

Answer:

Product is the answer of two numbers that are multiplied together.

3 x 3=9

Step-by-step explanation:

8 0

3 years ago

The length of a rectangle is (x + 1) cm and its width is 5cm less than its length.

NeX [460]

Answer:

a) the area of a square is in terms of x is

$(x+1)^2$ centimeter square

b)The length of the rectangle is l = (x+1)

l = 7+1 =8 cm

The width of the rectangle is w = [(x+1)-5]

w = (7+1)-5 =3 cm

Step-by-step explanation:

a) the area of a square is in terms of x is

area of square is $l^{2} = (x+1)(x+1)$

= $(x+1)^2$

b) Given length is l = (x+1) cm and

the width is 5 cm less than its length.

so we have take width is w = (x+1)-5 cm

Given area of triangle is 24 cm

Area of rectangle = length X width

24 = (x+1)(x+1 -5 )

now simplification $24 = (x+1)^2 - 5 (x+1)$

apply (a+b)^2 = a^2+2 a b+b^2

$x^2+2 x+1-5 x-5 =24$

$x^2 -3 x -4-24=0$

$x^{2} -3 x -28 =0$

now find factors of 28 = 7 X 4 is

$x^{2} -7 x+4 x-28=0$

$x(x-7)+4(x-7)=0$

$(x+4)(x-7)=0$

x = -4 and x=7

there fore you have to choose x = 7

The length of the rectangle is l = (x+1)

l = 7+1 =8

The width of the rectangle is w = [(x+1)-5]

w = (7+1)-5 = 3

<u>Verification:-</u>

Given area of rectangle = 24 = 8 X 3

24 =24

so we can not choose x=-4

we have to choose x =7 only

7 0

3 years ago

What is 2x + 3y< =543 +3x> 3,456,789<12+12+12+12+12+12+12+12+18+19+10+19

artcher [175]

Answer:

65.434

Step-by-step explanation:

4 0

2 years ago

Attend to precision. Suppose that 21 and 22 are same-side interior angles formed by two parallel lines cut by a transversal, and

Zepler [3.9K]

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5 0

2 years ago