All categories

2 years ago

The area of a parallelogram in which b = (3x + 5) ft and h = (7x - 1) ft

1 answer:

6 0

The area of a parallelogram is equal to the base multiplied by the height. So in this instance it would be (3x+5)*(7x-1). Foil out the binomials. 21x^2+35x-3x-5 Combine like terms. 21x^2+32x-5
The area is 21x^2+32x-5

You might be interested in

In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc

Daniel [21]

Answer:

The number is $N =1147$ students

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 281$

The standard deviation is $\sigma = 34.4$

The sample size is n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

$P(250 < X < 305 ) = P(\frac{ 250 - 281}{34.4 } < \frac{X - \mu }{\sigma } < \frac{ 305 - 281}{34.4 } )$

Generally

$\frac{X - \mu }{\sigma } = Z (Standardized \ value \ of \ X )$

$P(250 < X < 305 ) = P(-0.9012< Z$

$P(250 < X < 305 ) = P(z_2 < 0.698 ) - P(z_1 < -0.9012)$

From the z table the value of $P( z_2 < 0.698) = 0.75741$

and $P(z_1 < -0.9012) = 0.18374$

$P(250 < X < 305 ) = 0.75741 - 0.18374$

$P(250 < X < 305 ) = 0.57$

The percentage is $P(250 < X < 305 ) = 57\%$

The number of students that will get this score is

$N = 2000 * 0.57$

$N =1147$

6 0

2 years ago

Value of x in log5x = 4logx5 is

olchik [2.2K]

Log5 x=4 logx 5
Ln x/ln5=4(ln5 / ln x) logx z=ln x / ln z
least common multiple=ln5 * ln x

ln²x=4ln²5
√(ln² x)=√(4 ln²5)
ln x=2ln 5
x=e^2ln5=25

Answer: x=25.

4 0

2 years ago

There are 565 sheets of paper in a book

Kisachek [45]

565 sheets/ 1 book* 2,000 books= 1,130,000 sheets.

The final answer is 1.13*10^(6) sheets.

Hope this helps~

4 0

2 years ago

What is the result when 6x2 – 13x + 12 is subtracted from –3x2 + 6x + 7?

max2010maxim [7]

The answer is (2) 9x2-19x+5.Because you need to first put them together linking by minus sign

7 0

2 years ago

3. Convert 5 inches per second to feet per minute

goldfiish [28.3K]

The answer you are looking for is B your guess was correct.

6 0

2 years ago