3 years ago

F(x)=ax^2 +bx +c solve: heigh 275 width 290

Mathematics

1 answer:

AlekseyPX3 years ago

7 0

Answer:

800 i think

Step-by-step explanation:

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identify the type of proportion and solve the problem. rose bought 8 bags at 880. if rit buys 12 of such kind of bags, how much

salantis [7]

Answer:

1320

Step-by-step explanation:

880/8 = 110

12x110 = 1320

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3 years ago

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Let u = (1, 2 -2), v= (2, 1, 3) and w = j + 4k. a) Find cos theta, where theta is the angle in degrees between u and w.

vodka [1.7K]

Answer: The value of cos theta is -0.352.

Step-by-step explanation:

Since we have given that

$\vec{u}=1\hat{i}+2\hat{j}-2\hat{k}\and\\\\\vec{w}=\hat{j}+4\hat{k}$

We need to find the cos theta between u and w.

As we know the formula for angle between two vectors.

$\cos\ \theta=\dfrac{\vec{u}.\vec{w}}{\mid u\mid \mid w\mid}$

So, it becomes,

$\cos \theta=\dfrac{2-8}{\sqrt{1^2+2^2+(-2)^2}\sqrt{1^2+4^2}}\\\\\cos \theta=\dfrac{-6}{\sqrt{17}\sqrt{17}}=\dfrac{-6}{17}=-0.352\\\\\theta=\cos^{-1}(\dfrac{-6}{17})=110.66^\circ$

Hence, the value of cos theta is -0.352.

8 0

3 years ago

If Jun has 12 t-shirts, 6 pairs of pants, and 3 pair of shoes how many ways can he dress himself up for the day?

Serjik [45]

12 x 6 x 3 =216. He can dress himself up in 216 different ways.

I hope this helps!

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3 years ago

You recently invested $400,000 of your savings in a security issued by a large company. The security agreement pays you 12% per

ANTONII [103]

Answer:

$722444.49386776

Step-by-step explanation:

Use Compound Intrest Formula

$a = p(1 + \frac{r}{n} ) {}^{nt}$

where p is the original amount.
R is the amount of percentage compounded
N is amount of times compounded per year.
T is how long the interest last.

P is 400,00p

T is 12% or 0.12

N is 4 since it is compounded quarterly

T is 5.

Plug the values in

$400000(1 + \frac{0.12}{4} ) {}^{20}$

Ypu get

$722444.49386776

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3 years ago

Lea wants to save money on a new computer. At the store near her, the computer she wants is listed at a regular price of 400.00.

Kaylis [27]

Answer:

280

Step-by-step explanation:

400.00-40%=280

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3 years ago

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