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iragen [17]
3 years ago
5

The length of a rectangular garden is represented by 3x-4 and the width is represented by 2x-5. Which of the following represent

s the total area of the garden?
a.) 5x-9
b.) 6x+20
c.) 6x^2-23x+20
d.) 6x^2-14x-9
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
8 0
Well area of a rectangle is given by the equation

a = L x W

Since they give us the expression for length and width we can find the expression for the area...

a = (3x - 4) x (2x - 5) or simply
a = (3x -4)(2x - 5)

Now we multiply

6x^2 - 15x - 8x + 20 =
6x^2 - 23x + 20

Your answer is C.
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4x-6+x+3<br><br> what is the value of this expression if x=8
Dmitry [639]
4x - 6 + x + 3.....when x = 8

4(8) - 6 + 8 + 3 =
32 - 6 + 8 + 3 =
43 - 6 =
37 <==
6 0
3 years ago
In the distribution, the first quartile,median and mean are 30.8,48.5 and 42.0 respectively. If the co efficient skewness is -0.
finlep [7]

Answer:

The third quartile is 56.45

Step-by-step explanation:

The given parameters are;

The first quartile, Q₁ = 30.8

The median or second quartile, Q₂ = 48.5

The mean, \bar x = 42.0

Coefficient of skewness = -0.38

The Bowley's coefficient of skewness (SK) is given as follows;

SK = \dfrac{Q_3 + Q_1 - 2 \times Q_2}{Q_3 - Q_1}

Plugging in the values, we have;

-0.38 = \dfrac{Q_3 + 30.8 - 2 \times 48.5}{Q_3 - 30.8}

Which gives;

-0.38×(Q₃ - 30.8) = Q₃ + 30.8 - 2 × 48.5

11.704 - 0.38·Q₃ = Q₃ - 66.2

1.38·Q₃ = 11.704 + 66.2 =  77.904

Q₃ = 56.45

The third quartile = 56.45.

5 0
3 years ago
What is the distance between -2 and - 1 1/2
kow [346]
The distance between -2 and -1 1/2 is 1/2:

-2+1/2=-1 1/2
-1 1/2 =-1 1/2
I was trying to show my work but hope this could help you
3 0
3 years ago
A triangle has vertices X(2, 1), Y(5, 4), and Z(5, 1). What is the area of the triangle?
pochemuha

Answer:

Step-by-step explanation:

They gave you an easy triangle. You can tell by the coordinates that X and Z are horizontally aligned, and Y and Z are vertically aligned, so Z is a right angle.

Area = 0.5(XZ)(YZ) = 0.5(3)(3) = 4.5 square units.

3 0
3 years ago
on a recent test matthew got 18 out of 40 problems correct at the same rate how many problems would matthew get correct if there
Flauer [41]

Answer:

27

Step-by-step explanation:

18/40 = 27/60

8 0
3 years ago
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