All categories

3 years ago

How do you know x when f(x)=2

Mathematics

2 answers:

AlexFokin [52]3 years ago

6 0

Its always 2 does not matter what is defined to x

frosja888 [35]3 years ago

3 0

Say your function is
f(x) = 2x + 3
If f(x) is 2 & you want to find x, replace f(x) with 2:
2=2x+3
And solve for x:
-1=2x
x=-1/2
Hope this helps!

You might be interested in

3(12 – 9x) = -16x + 58 i need the justifiction for each step because idk how to do it

krok68 [10]

I hope this helps :)

4 0

3 years ago

This figure consist of a rectangle a semi circle and a quarter circle what is the perimeter of this figure use 3.14 for pi

alexandr402 [8]

Answer:

37.55 m

Step-by-step explanation:

To find the perimeter, we have to add the lengths of each part of the figure.

We start from the circle on top. We see that its diameter is 10 m, therefore its radius is

r = 5 m

(because the radius is half the diameter). The perimeter of a circle is given by

$p=2 \pi r$

However, here we have half a circle, so its perimeter is

$p_1 = \pi r=(3.14)(5)=15.7 m$

Then continuing in a clockwise direction, we have to add the length of the side of 2 m:

$p_2 = 2 m$

Then we have two sides of a square of side 5 m, so:

$p_3 = 5 m + 5 m= 10 m$

Then we have a quarter of a circle of radius r = 5 m, so its perimeter is:

$p_4 = \frac{\pi r}{2}=\frac{\pi (5)}{2}=7.85 m$

Finally, we have one more side of length 2 m:

$p_5 = 2m$

Therefore, the total perimeter is:

$p=p_1+p_2+p_3+p_4+p_5=15.7+2+10+7.85+2=37.55 m$

4 0

4 years ago

If s=7 cm and t= 24 cm, what is the length of r?

marin [14]

A^2 + B^2 = C^2.

so 49 + 576 = C^2

625 = C^2

Now find the square root of 625.

25 = C (in your case r)

3 0

4 years ago

In a school the ratio of the boys to the girls is 4:3. there are 216. how many girls are there?

seraphim [82]

Put 4:3 into a fraction like 4/3 and make it equal to the number of boys
4/3=216/x
(find x by cross multiplying)
x=162 girls

3 0

4 years ago

Can someone help me with this

MA_775_DIABLO [31]

Answer:

what is that i dont answering this sorry

4 0

3 years ago