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3 years ago

Help me pleaseeesssss

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

The answer is: y = 2x + 2

Step-by-step explanation:

The reason being that if you were to subsitute each x value into the equation you would get:

y = 2(0) + 2

y = 0 + 2

y = 2

y = 2(1) + 2

y = 2 + 2

y = 4

y = 2(2) + 2

y = 4 + 2

y = 6

y = 2(3) + 2

y = 6 + 2

y = 8

y = 2(4) + 2

y = 8 + 2

y = 10

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Given that e= 2i – 5j + 9k and f= 8i + 15j + k, find 3f – 2e.

ipn [44]

Plug in "8i + 15j + k" for "f", and "2i – 5j + 9k" for "e"

3(8i + 15j + k) - 2(2i – 5j + 9k)

Distribute 3 to (8i + 15j + k) & - 2 to (2i – 5j + 9k)

3(8i + 15j + k) = 24i + 45j + 3k

-2(2i - 5j + 9k) = -4i + 10j - 18k

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Simplify. Combine like terms

24i - 4i + 45j + 10j + 3k - 18k

(24i - 4i) + (45j + 10j) + (3k - 18k)

20i + 55j - 15k is your answer, or (C)

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hope this helps

5 0

3 years ago

Read 2 more answers

Explain why the function of f(x)=4x^2+8x is neither even or odd

myrzilka [38]

Answer:

By putting x = -x in f(x) i.e. f(-x) we didn't get f(x) or -f(x) so, the function is neither even nor odd.

Step-by-step explanation:

We need to explain why the function of $f(x)=4x^2+8x$ is neither even or odd

First we will understand, when the function is even and odd

Even function:

<em>A function is even if f(-x) = f(x) </em>

Odd function:

<em>A function is odd if f(-x) = -f(x) </em>

So, if we get the above result by putting x = -x, then we can say that the function is even or odd.

If we don't get any of the above results then the function is neither even nor odd.

So, for the given function: $f(x)=4x^2+8x$

Put x = -x

$f(x)=4x^2+8x\\Put x=-x\\f(-x)=4(-x)^2+8(-x)\\f(-x)=4x^2-8x$

So, by putting x=-x in f(x) i.e. f(-x) we didn't get f(x) or -f(x) so, the function is neither even nor odd.

6 0

3 years ago

Tobi Foods grocery began the year with 300 boxes of cookies with a unit cost of $1.89. During the year, the following additional

Flura [38]

we know that

The first-in-first-out method (FIFO), states that the earliest costs (first costs) are assigned to cost of goods sold and the remaining costs (the more recent costs) are assigned to ending inventory.

The FIFO method assumes that the earliest-goods purchased are sold first.

in this problem

<u>Part a) </u>cost of ending inventory

<u>Find the total cost</u>

Total cost=200*$2.1+400*$2.2+250*$2.4=$1,900

<u>Find the cost of ending inventory</u>

475-250=225 boxes

Cost of ending inventory=225*$2.20+250*$2.40=$1,095

therefore

<u>the answer Part a) is</u>

The cost of ending inventory is $1,095

<u>Part b</u>) cost of goods sold

we know that

The cost of goods sold is equal to the total cost minus the cost of ending inventory

cost of goods sold=$1,900-$1,095=$805

therefore

<u>the answer part b) is</u>

The cost of goods sold is $805

6 0

3 years ago

HELP PLSSSSS!!!! ITS OVERDUE AND I NEED HELP FOR THE ANSWER TO B!! CAN SOMEONE ALSO TELL ME IF I GOT A RIGHT?? sorry for all cap

ludmilkaskok [199]

Step-by-step explanation:

A is 16.9%

B is 352,181

nqjxjdnwndjjdwnssj (this is spam so that i have enough characters)

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2 years ago

What are the slope and y-intercept of the line?

MaRussiya [10]

Answer:

the slope is 1.33 and the y intercept is 2

7 0

3 years ago