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3 years ago

Please help me! I don't understand this question at all

Mathematics

1 answer:

NikAS [45]3 years ago

6 0

Answer:

To solve this problem you can divide the figure is known figures that have exact formulas for calculate their areas. As you can see in the figure attached, you can divide in two trapezoids, one rectangle and two right triangles. Therefore, you have:

Area=((4+3)6)/2+((6+3)5)/2+(3x1)+(3x4)/2+(3x3)/2

Area=21+22.5+3+6+4.5

Area=57

The answer is: The area is 57

You might be interested in

Which of the following is a factor of 2xy + 8y − 8x − 32?

melamori03 [73]

We are given

$2xy+8y-8x-32$

We can write it as

$=2y*x+2y*4-8*x-8*4$

we can see that 2y is in first two terms

and -8 is in last two terms

so, we can factor it out

$=2y(x+4)-8(x+4)$

now, we can see that x+4 is common in both terms

so, we can factor it out

$=(x+4)(2y-8)$

we can see that

x+4 is one of factor of terms

so, option-B..........Answer

7 0

3 years ago

Can you plz help me with this, because I don’t know how to do this and can u plz explain how to do it

Alecsey [184]

Answer:

Step-by-step explanation:

You can start this in may ways but let's start by isolating one of the parenthesis:

x (x² - 5) = - (x - 3)

x³ - 5x = -x + 3 (here I multiplied x for what's inside the parenthesis and the "minus" signal by the other parenthesis which was (x - 3))

x³ - 5x + x = 3

x³ -4x = 3

x³ -4x -3 = 0 (now this right here is a "depressed cubic equation" and it's one of the toughest sit of all time, so good luck with that, you might wanna take a look at this:

ytb/watch?v=rNDy2ZFvG1E

or maybe I'm doing something wrong and it's simpler than that, but whaterver...)

4 0

3 years ago

Calculate the standard score of the given X value, X=28.3, where μ=26.3 and σ=28.1 and indicate on the curve where z will be loc

zmey [24]

Answer:

Standard score z=0.07

Step-by-step explanation:

The z-score, or standard score, represents an equivalent value for X but in the standard normal distribution, where μ=0 and σ=1.

For X=28.3 in a normal distribution with μ=26.3 and σ=28.1, the standard score can be calculated as:

$z=\dfrac{X-\mu}{\sigma}=\dfrac{28.3-26.3}{28.1}=\dfrac{2}{28.1}=0.07$