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balandron [24]
2 years ago
15

Can someone help me?

Mathematics
2 answers:
AnnyKZ [126]2 years ago
7 0
<h3>Answer:  -3.33</h3>

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

Explanation:

Everywhere you see an x, replace it with -4. Then apply the order of operations PEMDAS to evaluate.

f(x) = \frac{-14-x^2}{9}\\\\f(-4) = \frac{-14-(-4)^2}{9}\\\\f(-4) = \frac{-14-16}{9}\\\\f(-4) = \frac{-30}{9}\\\\f(-4) \approx -3.33333333 \\\\f(-4) \approx -3.33 \\\\

Mars2501 [29]2 years ago
4 0

Answer:

-3.33

Step-by-step explanation:

The question is simply asking you to plug -4 in for x.This turns our equation into:

(-14 - (-4)^2)/9.

Remember, PEMDAS.

First, let's square -4.

-4 * -4 = 16 (<em>A negative times a negative is a positive.</em>)

Next, let's turn the top into a single number.

-14 - 16 = -30

So, now our equation has boiled down to:

-30/9.

Our solution before we round:

-3.333333

Finally, we round it. Keep in mind the hundredths place is <em>two</em> decimal places.

-3.33 (REMEMBER: if the 3rd decimal place is ≥ 5, we would round up, however it isn't so we round down.)

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Answer: 1200 g pinapple

Step-by-step explanation:

800/2=400*3=1200

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3 years ago
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Show that the relation R consisting of all pairs(x, y)such that x and y are bit strings of length three or more that agree in th
Mice21 [21]

Answer:

See proof below

Step-by-step explanation:

An equivalence relation R satisfies

  • Reflexivity: for all x on the underlying set in which R is defined, (x,x)∈R, or xRx.
  • Symmetry: For all x,y, if xRy then yRx.
  • Transitivity: For all x,y,z, If xRy and yRz then xRz.

Let's check these properties: Let x,y,z be bit strings of length three or more

The first 3 bits of x are, of course, the same 3 bits of x, hence xRx.

If xRy, then then the 1st, 2nd and 3rd bits of x are the 1st, 2nd and 3rd bits of y respectively. Then y agrees with x on its first third bits (by symmetry of equality), hence yRx.

If xRy and yRz, x agrees with y on its first 3 bits and y agrees with z in its first 3 bits. Therefore x agrees with z in its first 3 bits (by transitivity of equality), hence xRz.

5 0
3 years ago
bridget recieved 1400 from her grandfather as a birthday gift she decided to put the money in an account to save for college the
Simora [160]

Answer:

The amount received after 5 years is 1827.39

Step-by-step explanation:

The amount received by Bridget from his grandfather as the birthday gift = 1400 .

Since he wants to deposit it and save for college, he earns interest rate = 5.4%

He deposited this money for the years = 5 years.

Here, the Present value (PV) is = 1400

Interest rate ( r ) = 5.4% or 0.054

Since the interest rate is compounded semi annually, So, n = 10

Now if we calculate the future value of 1400 with interest rate 5.4 percent:

\text{The amount received after 5 years} = PV(1 + \frac{r}{2} )^{n} \\

= 1400(1 + \frac{0.054}{2})^{10} \\

= 1827.39

Therefore, 1827.39 will be the total money in his account after five years.

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Use the pythagorean theorem a^{2} +b^{2} =c^{2}

plug in and solve

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