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3 years ago

Which expression would the model be most helpful in solving?

Mathematics

1 answer:

vovangra [49]3 years ago

4 0

This question is awfully vague without any images of the equation to back it up, sorry

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Solve for W. 4w-4+2(5w+8)=-2(w+3) Simplify your answer as much as possible.

gayaneshka [121]

Answer:

w = $-\frac{9}{8}$

Step-by-step explanation:

The question is $4w-4+2(5w+8)=-2(w+3)$

We can first use distributive property to simplify, the distributive property is $a(b+c)=ab+ac$

Thus we have:

$4w-4+2(5w+8)=-2(w+3)\\4w-4+10w+16=-2w-6$

Now we combine like terms and simplify to get the final answer for w.

$4w-4+10w+16=-2w-6\\14w+12=-2w-6\\14w+2w=-6-12\\16w=-18\\w=\frac{-18}{16}\\w=-\frac{9}{8}$

Thus, w = $-\frac{9}{8}$

8 0

2 years ago

Read 2 more answers

NNEED HELP!! GEETSS BRAINLIEST**

sergejj [24]

Answer:

D. $y=3\cos \left(\dfrac{4}{3}x-2\pi\right)+2$

Step-by-step explanation:

The period of the functions $y=\cos x,\ y=\sin x$ is $2\pi.$

The period of the function $y=a\cos (kx+b),\ y=a\sin(kx+b)$ is ALWAYS $\dfrac{2\pi}{k}$

In your case, you have function $y=-3\sin \left(\dfrac{2}{3}x-2\pi \right)+2$ and this function has the period

$\dfrac{2\pi}{\dfrac{2}{3}}=3\pi.$

You need to find the function that will have the period that is half of $3\pi,$ so

$\dfrac{3\pi}{2}=\dfrac{2\pi}{k}\\ \\3k=4\\ \\k=\dfrac{4}{3}.$

So, correct choice is

$y=3\cos \left(\dfrac{4}{3}x-2\pi\right)+2$

7 0

2 years ago

Read 2 more answers

PLEASSE HELP URGENT WILL GIVE BRAINLIEST FOR CORRECT ANSWER Brian wanted to find out if studying for the algebra test is effecti

Viefleur [7K]

Answer:

2/130 or 1/65

Step-by-step explanation:

64+4+2+60 (all the people) =130

Given the fact that ''2 learners studied but failed the test.'' Brian is the same.

So you would do 2/130 or simplify it, 1/65.

Hope it helps :)

6 0

3 years ago

Amy has completed 21 deliveries so far this week.she needs to make 60 deliveries for the week.what percentage of her deliveries

Nonamiya [84]

Answer:

65% to go or 35% already delivered

Step-by-step explanation:

Amy has completed 35% of her deliveries since 21/60 is .35

If the question is how much she has left, Amy needs to complete 65% more of her deliveries.

If the question is how much she has completed, she has delivered 35% of her deliveries.

7 0

2 years ago

Please help! :))

denis23 [38]

Answer:

Check below

Step-by-step explanation:

Hi,

We're dealing with linear functions. $f(x)=mx+b$

We have here the first function.

$g(x)=3x$

That's a linear function, with slope, and no linear coefficient since

But on the other hand, the functions below, they all describe parallel lines, since their slope has the same value. I've changed the letters to make it easier the comprehension.

Even though each one has the same slope value, they have different non zero linear coefficients, {-6,-18,6,18}. Unlike, the first one

$h(x)=3(9x-2) \rightarrow h(x)= 27x-6\\i(x)=9(3x-2)\rightarrow i(x)=27x-18\\j(x)=3(9x+2)\rightarrow j(x)=27x+6 \\k(x)=9(3x+2)\rightarrow k(x)=27x+18\\$

A possible solution would be adjusting any of these, whose operation would result in g(x)=3x, but

$y=9(\frac{3x}{9}-2)+18 =3x$

4 0

2 years ago