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3 years ago

Does this graph represent a function?? NEED ASAP PLEASEEE

Mathematics

1 answer:

Goshia [24]3 years ago

7 0

Yes it’s a function and for every hour the fee will go up .50

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Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

4 0

3 years ago

Read 2 more answers

If you draw two cards from the deck at the same time, what is the probability that they will both be hearts?

koban [17]

Answer:

The probability is 1/17.

Step-by-step explanation:

The total number of ways in which 2 cards can be selected from a pack of 52 cards is $\binom{52}{2}$

The total number of combinations of 2 cards with hearts equals $\binom{13}{2}$

Thus the probability of the event that both the cards have hearts becomes

$P(E)=\frac{\binom{13}{2}}{\binom{52}{2}}=\frac{1}{17}$

4 0

3 years ago

Is 9/27 squared rational?

aliina [53]

No it is an irrational number i think

4 0

3 years ago

Whats 8u2-42u2 simplified

Alex73 [517]

If your 2 means "u squared" then

Just do 8-42=-34
The answer is -32u^2

I use ^ to show exponents

7 0

3 years ago

S.O.S I desperately need math help

rjkz [21]

I'm pretty sure that your answer is the Distributive Property, if I were you, I'd check your notes if you have notes or anything, and THEN, search it up. Just to make sure. I'm not always a hundred percent sure of my answer, but, I *THINK* it's the distributive property.

7 0

3 years ago

Read 2 more answers