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3 years ago

PLEASE HELP URGENT!! TIMED WILL GIVE 20 PTS What is the area of parallelogram ABCD?

Mathematics

2 answers:

My name is Ann [436]3 years ago

7 0

First, split up the shape into multiple other shapes. We can split it into two triangles, two different triangles, and a square.

The square has area 6.
The first triangle measures 3 x 1, meaning that the area is 3/2. Since we have two, their combined area is 3.
The other two triangles measure 4 x 1, meaning that their area is 2. Since we have two, their combined area is 4.

Thus, the area is 3 + 4 + 6 = 13.

Leto [7]3 years ago

3 0

You need the Pythagorean Theorem.
From D to C, we can make a right triangle. To plug this in, it's 1^2 + 3^2 = x^2. Anyway, we x = 3.16

Then we can do A to D. This is 1^2 + 4^2 = x^2. After this, we get x = 4.12

Now, normal formula for a rectangle. 3.16 x 4.12 = 13.04

ABCD is 13.04 units^2, or 13 units^2.

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A leprechaun places a magic penny under a girls pillow. The next night there are 2 magic pennies under her pillow. The following

kiruha [24]

Answer:

After 47 days she will have more than 90 trillion pennies.

Step-by-step explanation:

At the beginning there was 1 penny. At the second day the amount of pennies under the pillow became 2.

The amount of pennies doubled each day. So the series is,

$1,2,4,8,16,32,.....$

This series is in geometric progression.

As the pennies from each of the previous days are not being stored away until more pennies magically appear so the sum of series will be,

$S_n=\dfrac{a(r^n-1)}{r-1}$

where,

a = initial term = 1,

r = common ratio = 2,

As we have find the number of days that would elapse before she has a total of more than 90 trillion, so

$\Rightarrow 90\times 10^{12}\le \dfrac{1(2^n-1)}{2-1}$

$\Rightarrow 90\times 10^{12}\le \dfrac{2^n-1}{1}$

$\Rightarrow 90\times 10^{12}\le 2^n-1$

$\Rightarrow 2^n\ge 90\times 10^{12}+1$

$\Rightarrow \log 2^n\ge \log (90\times 10^{12}+1)$

$\Rightarrow n\times \log 2\ge \log (90\times 10^{12}+1)$

$\Rightarrow n \ge \dfrac{\log (90\times 10^{12}+1)}{\log 2}$

$\Rightarrow n \ge 46.4$

$\Rightarrow n\approx 47$

8 0

3 years ago

The angle formed by two spokes meeting at the center of a bicycle wheel is 30°. After the wheel rotates 540°, what will be the a

cluponka [151]

Answer:

Step-by-step explanation:

5 0

3 years ago

How many miles did Jayne travel in 4 hours

aleksandr82 [10.1K]

WHAT IS THE MPH

IF I DONT HAVE THAT I CANT ANSWER

7 0

3 years ago

Read 2 more answers

Find the volume of the figure. A 1,053 M^3 B 2,106 M^3 C 513 M^3 D 58,5 M^3

vampirchik [111]

The answer is )A
OK THANK YOU I HOPE THIS HOPED

7 0

3 years ago

is planning schedules for 30 students Sixteen students say they want to take French, 16 want to take Spanish, and 11 want to tak

ivann1987 [24]

Answer: There are 7 students who want French only.

Step-by-step explanation:

Since we have given that

Number of students is planning schedules = 30

Number of students who want to take French = 16

Number of students who want to take Spanish = 16

Number of students want to take Latin = 11

Number of students who take both French and latin = 5-3 =2

Number of students who take French and Latin and Spanish as well = 3

Number of students who only want Latin = 5

Number of students who only want spanish = 8

According to venn diagram, we get that

$a+b+g+f=16\\\\c+d+e+g=11\\\\b+e+f+g=16$

So, it becomes,

$c+d+e+g=11\\\\5+2+e+3=11\\\\e=11-(5+2+3)=1$

Similarly,

$b+e+f+g=16\\\\8+1+f+3=16\\\\12+e=16\\\\e=16-12\\\\e=4$

Similarly,

$a+d+g+f=16\\\\a+2+3+4=16\\\\a=16-(2+3+4)\\\\a=16-9\\\\a=7$

Hence, there are 7 students who want French only.

6 0

3 years ago