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2 years ago

What does 3k-5=7k-33 equal

Mathematics

1 answer:

kramer2 years ago

3 0

Hello There

Answer: k = 7

I hope this helps

-Chris

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3x^2 + 14x how do you factories this

I am Lyosha [343]

Answer:

x(3x+14)

Step-by-step explanation:

what do those terms share? they share the letter "x"

therefore we multiply x by 3x^2/x + 14x/x

3x^2/x = 3x and 14x/x = 14

8 0

2 years ago

Find the value of x that makes lines u and v parallel

gogolik [260]

Answer:

x = 4 for Lines U and V to be parallel

Skills needed: HS Geo, Angle Theorems, Equations

Step-by-step explanation:

1) We see that there are two angle measures given to us. There is an angle marked with the measure of $130$ °, and the other is marked with ( $33x-2$ )°.

First of all, these two angles are categorized alternate interior angles. They are on alternate sides of the transversal, and are within the two lines (not on the outer side of the lines). I will add an image for reference regarding this idea.
If 2 lines are parallel, alternate interior angles are congruent. This means that: $33x-2=130$

2) Solving this equation is fairly straightforward.

$33x-2+2=130+2$ (add 2 to both sides in order to get the $33x$ by itself.
$33x\div33=132\div33$ (to get $x$ by itself)
132 divided by 33 is 4, and 33x divided by 33 is x, so $x=4$

--------------------------------------------------------------------------------------------------------------Hope you understood, have a great day.

7 0

2 years ago

Katie has read 32% of a book. If she has read 80 pages how many more pages does Katie have left to read?

butalik [34]

B. 170. Hope this helped :D

8 0

3 years ago

Read 2 more answers

Find the derivative of 9x³ + 4x² + x + 3 at x = 3.

Ilia_Sergeevich [38]

Solution:

268

=============================

$\sf \bold{ \rightarrow } \ y = 9x^3 + 4x^2 + x + 3$

$\sf \bold{ \rightarrow } \ \dfrac{dy}{dx} = \dfrac{d}{dx} ( \ 9x^3 + 4x^2 + x + 3 \ )$

$| | \ \mathrm{ If \ y = x^n , \ then \ \frac{dy}{dx} = nx^{n-1}} \ | |$

$\sf derivative \ of \ constant \ is \ always \ 0 \ || \ \sf\dfrac{d}{dx}\left(a\right)=0 \ ||$

solving step wise

$\sf \bold{ \rightarrow } \ \dfrac{d}{dx} ( 9x^3) + \dfrac{d}{dx}(4x^2) + \dfrac{d}{dx}(x )+ \dfrac{d}{dx}(3 )$

$\sf \bold{ \rightarrow } \ \sf ( 3(9x^{3-1}) +2(4x^{2-1}) + (1)(x^{1-1} )+ 0$

$\sf \rightarrow 27x^2+8x+1+0$

$\sf \rightarrow 27x^2+8x+1$

when x = 3

$\sf \hookrightarrow 27(3)^2+8(3)+1$

$\sf \hookrightarrow 243+24+1$

$\sf \hookrightarrow 268$

8 0

1 year ago

Read 2 more answers

Suppose that F(x) = x^3 and G(x) = (4x)^3 − 5. Which statement best compares the graphs of F(x) and G(x)?

Rom4ik [11]

We have that
F(x) = x^3 and G(x) = (4x)^3 − 5
so
G(x) = F(4x) -5

the visual effect is
1) shrink horizontally by 1/4
2) shift down by 5

therefore
the answer is the option
D.The graph of G(x) is the graph of F(x) compressed horizontally and shifted 5 units down.

3 0

3 years ago