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taurus [48]
3 years ago
9

Given: ABCD is a rhombus, Perimeter = 20, AC:BD = 4:3 Find: Area of ABCD.

Mathematics
1 answer:
REY [17]3 years ago
6 0
4a=20⇒a=5

we know diagonals are perpendicular. if u look at one of the right triangles, you can see that for hypotenuse to be 5, the legs have to be 4 and 3 to satisfy the given ratio 4:3.

so, diagonals are 8 and 6 as we know that diagonals bisect each other.

Area=8*6/2=24
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Expand & simplify
Wittaler [7]

Answer:

6(2a+4)-4(3a-4)= (12a+24) +(-12a+16) = 40

4 0
2 years ago
The length of a rectangle is 7 cm more than 4 times the width. If the perimeter of the rectangle is 44 cm, what are its dimensio
Alexxandr [17]

Answer:

3 by 19

Step-by-step explanation:

3 0
3 years ago
The picture has the question.
Alekssandra [29.7K]

Answer: 180 tickets for $40

Step-by-step explanation:

    To answer this question, we need to find a pattern;

15 / 3 = 5

60 / 15 = 4

-> If you divide, we find a pattern of the quotient with 5... 4... so we can assume the next is 3

    Using this pattern;

60 * 3 = 180 tickets for $40

8 0
1 year ago
Find the inverse f(x)=6x+7
Lorico [155]

Answer:

f^{-1} (x) = \frac{x-7}{6}

Step-by-step explanation:

let y = f(x) , then rearrange making x the subject

y = 6x + 7 ( subtract 7 from both sides )

y - 7 = 6x ( divide both sides by 6 )

\frac{y-7}{6} = x

Change y back into terms of x with x = f^{-1} (x) , then

f^{-1} (x) = \frac{x-7}{6}

7 0
2 years ago
Angle I and N are complementary. If angle N has a meause of 48 degrees, find the measure of angle I
Afina-wow [57]

Answer:

42°

Step-by-step explanation:

Complementary angles are two angles that add up to 90°

1) 90-48 = 42

Hope this helps! :)

8 0
3 years ago
Read 2 more answers
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