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3 years ago

If the diagonals of a quadrilateral bisectors of equal lengths, then the quadrilateral must be a

Mathematics

2 answers:

umka21 [38]3 years ago

6 0

A square?. This is because all four sides, angles, and segments of the square are perfectly equal.

HACTEHA [7]3 years ago

4 0

A square.

Hope I helped :))

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If w = t and t = 9, what is the value of w? –9 –1 1 9

9966 [12]

Answer:

Step-by-step explanation:

if t =9 and also t=w then w=9

6 0

2 years ago

Corrected work and description of error

hichkok12 [17]

Answer:

hmm i have no idea can u send a clear pic of question?

8 0

2 years ago

If y varies jointly with x and z and y=40 when x=10 and z=9 find z when x =55 and y=105

Eduardwww [97]

Answer:

z = 189/44

Step-by-step explanation:

The "varies jointly" relationship can be expressed by ...

y = kxz

We can find k from the given values.

40 = k(10)(9)

40/90 = k = 4/9 . . . divide by the coefficient of k

Now we want to find z for given values of x and y. That can be found from ...

y = (4/9)xz

9y/(4x) = z . . . . . multiply by 9/(4x)

Filling in the new numbers, we have ...

z = 9·105/(4·55)

z = 4 13/44 = 189/44 ≈ 4.2954...(repeating 54)

4 0

3 years ago

ou live in the building on the left in the drawing, and a friend lives in the other building. the two of you are having a discus

Alenkinab [10]

Answer:

1.3

Friend is wrong

Step-by-step explanation:

Given:

friend's claim: height of his building is more than 1.50 times the height of yours

line of sight to the top edge of the other building makes an angle of 21° above the horizontal

line of sight to the base of the other building makes an angle of 52° below the horizontal

Solution:

Let A be the height of your building is A

Let B+A his building is B higher than yours.

Let the distance between the buildings is x.

then

tan 52 = A/x

tan 21 = B/x

A/B = tan 52 / tan 21

= 1.27994 / 0.38386

A/B = 3.33

(A + B) / A = 1.5 0

A/A + B/A = 1.50

1 + B/A = 1.50

B/A is basically (B/x) / (A/x)

1+ 3.33 / 3.33

= 4.33/3.33

= 1.3

Since 1.3 is not equal to 1.5

Hence the friend's claim is wrong.

5 0

3 years ago

What are the side lengths of the equilateral triangle?

Alchen [17]

$5x + (6x - 5) + (3x + 10) = 360$

$5x + 6x - 5 + 3x + 10 = 360$

$11x - 5 + 3x + 10 = 360$

$14x + 5 = 360$

$14x = 360 - 5$

$14x = 355$

$x = 25.36$

$x = 25.36$

$5x = 5 \times 25.36 = 126.8$

$6x - 5 = 6 \times 25.36 - 5 = 147.16$

$3x + 10 = 3 \times 25.36 + 10 = 86.08$

4 0

2 years ago