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4 years ago

If I had five rows under the first row with four units in each , what is the area of my shape

1 answer:

5 0

We know that one row contains four units each and there are five rows. To find out the area of the shape, we do:
5 (row) × 4 (units) = 20 units

So the area of the shape is 20 units².

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How do I even start this? And how to i order the equation to solve

Kobotan [32]

$f(g(h(x)))=f(g(\sqrt x))=f(\sqrt x-1)=\boxed{(\sqrt x-1)^4+4}$

This is because

$h(x)=\sqrt x$

$g(x)=x-1$

$\implies g(h(x))=\sqrt x-1$

(that is, replace any instance of x in the definition of g with √x )

and

$f(x)=x^4+4$

$\implies f(\sqrt x-1)=(\sqrt x-1)^4+4$

(replace any x in f with √x - 1)

Also acceptable:

$(\sqrt x-1)^4+4=((\sqrt x)^4-4(\sqrt x)^3+6(\sqrt x)^2-4\sqrt x+1)+4$

$=\boxed{x^2-4x\sqrt x+6x-4\sqrt x+5}$

(assuming x is not negative)

6 0

3 years ago

Several students made comments about this image. A triangle has angles B, C, D. The exterior angle to angle B is A. Which commen

professor190 [17]

A Comment "If i know the measures of angles C and B, I can find the measures of A and D" is TRUE

Explanation :

If we know angles C and B we can find angles A and D as,

As from figure we know

A+B = 180°

∴ A = 180° - B ... we know B so we get A

Also,

B+C+D = 180° ... as BCD is a triangle

∴ D = 180° - (B+C) ... we know B and C so we get D

8 0

3 years ago

Read 2 more answers

Which graph represents the function f(x) =-lx-2l-1

zimovet [89]

It’s the second one from the right

Since there’s a - behind x it means it has to be facing down so it’s either 2 or 4

Now it’s x-2 and we know that x moves the opposite so it needs to move 2 to the right so the answer is 2

6 0

4 years ago

What is the value of x? A. 4 B. 4√3 C. 8 D. 8√3

Paladinen [302]

The answer is B. I used the trigonometric sine formula

$\sin(60) = \frac{x}{8 }$

$\sin(60) \times 8 = x$

$x = 6.93$

And

$4 \sqrt{3} = 6.93$

8 0

3 years ago

The equation of line r is y = 3x − 7 Line s includes the point(6, -9)and is perpendicular to line What is the equation to find s

tiny-mole [99]

Answer:

y=-.3x-7

Step-by-step explanation:

So, if you want to find a line perpendicular to another line, you have to put a decimal in front, or make it a reciprocal. In this case, I put a decimal in front to make it both perpendicular, and cross through (6, -9). Nice.

Edit: Spelling

4 0

4 years ago