Simplify the expression below.
(4+7i)-(3-2i)

Answer:

x^2 + 15

Step-by-step explanation:

All the other answers are wrong

The solution the inequality 3|x+2|<6 is D. -4<x<0 .

Inequality represents comparing two non equal quantities.

According to the given question an inequality 3|x+2| < 6 is given and we have to determine it's graph.

We know, 3|x+2|<6

= |x+2| < 2.

∴ (x+2) < 2

x < 0.

Or

-(x+2)<2.

- x - 2 < 2

- x < 4.

x > - 4.  (Think of moving the values to other sides).

So,    -4 < x < 0 and this will be represented in the number line by open circle and they are strictly less than and greater than.

learn more about inequality here :

https://brainly.com/question/20383699

#SPJ1

Answer:9

(note)

I'm not great in math  so....

Step-by-step explanation:

[tex] \frac{ {x}^{ \frac{5}{4} } }{ {x}^{ \frac{1}{6} } } = {x}^{a} [/tex]

[tex] {x}^{a} = {x}^{ \frac{5}{4} - \frac{1}{6} } [/tex]

[tex] {x}^{a} = {x}^{ \frac{15}{12} - \frac{2}{12} } [/tex]

[tex] {x}^{a} = {x}^{ \frac{13}{12} } [/tex]

[tex]a = \frac{13}{12} [/tex]

The order of the given numbers from the least to greatest will be (-1968/7), 738/8, and 1024/7.

Given that,

Numbers 1024/7, -1968/7 and 738/8,

Now,

According to the question,

We have to place them in order from the least to greatest,

i.e.

In the increasing form or in the ascending order.

And,

Ascending order is the way of writing given numbers in an increasing sequence.

Now,

we have,

Numbers 1024/7, -1968/7, and 738/8,

Now,

-1968/7 is the least or smallest number as it is in negative form.

And,

738/8 in its decimal form will be 92.25,

And,

1024/7 in its decimal form will be 146.285,

So,

The order from the least to greatest is (-1968/7), 738/8, and 1024/7.

Hence we can say that the order of the given numbers from the least to greatest will be (-1968/7), 738/8, and 1024/7.

To learn more about the least and greatest numbers click here,

https://brainly.com/question/12143702

#SPJ1

Answer:

60 / (15+x)

Step-by-step explanation:

First, we would start off with (15+x).  It is in parenthesis because we need to do that foremost.  

Second, we divide by 60.  

60/(15+x)

Taking into account the rule of three, the mass of 4000 atoms of gold is 1.3×10⁻¹⁸ grams.

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, the direct rule of three must be applied as follow, being a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: x= (c×b)÷a

You can apply the following rule of three: if 1 atom of gold has a mass of approximately 3.25×10⁻²² grams, 4000 atoms of gold have how much mass?

mass= (4000 atoms× 3.25×10⁻²² grams)÷ 1 atom

mass= 1.3×10⁻¹⁸ grams

Finally, the mass of 4000 atoms of gold is 1.3×10⁻¹⁸ grams.

Learn more about rule of three and mass of a number of atoms:

brainly.com/question/2321479

brainly.com/question/23508430

#SPJ1

[tex]area = length \times width \\ 35 = length \times 5 \\ length = \frac{35}{5} = 7[/tex]

The equation for the linear function that best fits the data is y = 22.14x + 53.33

The data is given as

X 1. 2. 3. 4. 5. 6

Y 77. 101. 118. 137. 158. 194

Next, we enter the above values in a graphing calculator

From the graphing calculator, we have the following calculatiion summary:

For the regression equation, we have

y = bx + a

Where

b = SP/SSX = 387.5/17.5 = 22.14286

a = MY - bMX = 130.83 - (22.14*3.5) = 53.33333

Approximate b and a

So, we have

b = 22.14

a = 53.33

This gives

y = 22.14x + 53.33

Hence, the equation for the linear function that best fits the data is y = 22.14x + 53.33

Read more about linear regression at

https://brainly.com/question/14152034

#SPJ1

Answer:

6400

Step-by-step explanation:

the exponent of the ten is the number of decimal spaces you move.

6.4(103)

=6.4*103

=6.4*(10*10*10)

=6400

The expansion of the binomial (2x² + y²)⁴ is;

(2x² + y²)⁴ = 16x⁸ + 32x⁶y² + 24x⁴y⁴ + 8x²y⁶ + y⁸

What is Binomial expansion?

The binomial expansion describe the algebraic expansion of powers of a binomial.

The expression is given as;

(2x² + y²)⁴

Now, The expansion of binomial is;

(2x² + y²)⁴ = (2x²)⁴ + 4 * (2x²)³ * y² + 6 * (2x²)² * (y²)² + 4 * 2x² * (y²)³ + (y²)⁴

               =  16x⁸ + 32x⁶y² + 24x⁴y⁴ + 8x²y⁶ + y⁸

Hence, The expansion of the binomial (2x² + y²)⁴ is;

(2x² + y²)⁴ = 16x⁸ + 32x⁶y² + 24x⁴y⁴ + 8x²y⁶ + y⁸

Learn more about the binomial expansion visit:

https://brainly.com/question/4892534

#SPJ1

b. Take the square root of both sides

Solution :

Square root: In mathematics, a square root of a number x is a number y such that y2 = x; in other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x.[1] For example, 4 and −4 are square roots of 16, because 42 = (−4)2 = 16.

n2 = 16

n= +4/-4

b. Take the square root of both sides

More details: brainly.com/question/18296869

# SPJ9

The standard form given of the function is x² - 12x - 45.

A quadratic equation has the conventional form ax2 + bx + c = 0, where an is the leading coefficient and a real integer that is not zero.

The quadratic equation ax2 + bx + c = 0 has the conventional form, where a 0 and a, b, and c are real values.

The given function is -

(x−6)²=81

⇒ x² + 36 - 12x = 81

⇒ x² - 12x = 81 - 36

⇒ x² - 12x = 45

⇒ x² - 12x - 45

To learn more about standard form from given link

https://brainly.com/question/19169731

#SPJ1

Answer:

152

Step-by-step explanation:

you will multiply 3and 5 each three times.

3*3*3=27

5*5*5=125

27+125=152

Answer:

Step-by-step explanation:

Given that the formula for exponential calculation :

[tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

A = final amount

P = initial principal balance

r = increasing rate

n = number of times increases applied per time period

t = number of time periods elapsed

[tex]A = 5,000,000,000(1 + \frac{2}{100})^{5}\\A = 5,000,000,000(\frac{100}{100} + \frac{2}{100})^{5}\\A = 5,000,000,000(\frac{102}{100})^{5}\\A = 5,000,000,000(\frac{51}{50})^{5}\\A = 5,000,000,000(1.104)\\\\A = 5,520,000,000\\A = 5.52billion[/tex]

Hope this helps, I would really appreciate it if u mark me as the brainliest. Thks

Answer: i guess it wants you to use ratios, so the final picture would be 24in x 36in

Step-by-step explanation:

so the length of the photograph, which is the height, is 24. so 24/4 is six, which means multiply six by six to get 36 which is the width

The equation has no solution for the variable w

The equation is given as

v = -3x + s

In the above equation, there is no occurrence of the variable w

This means that it is not possible to solve the equation for w

Hence, the equation has no solution for the variable w

Read more about equations at

https://brainly.com/question/13763238

#SPJ1

The volume (V) of Lorie's shed, being 18.25 ft in length, 15 ft in width and  (5 1/5) ft in height, will be 1423.5 cubic fts.

As per the question statement, Lorie ordered a shed of length 18.25 ft, width 15 ft and height (5 1/5) ft, to hold her gardening supplies.

We are required to calculate the volume of the above mentioned shed using the formula, provided in the question statement itself.

To solve this question, we will simply put our values in the provided formula and calculate to obtain our desired answer.

Here, "l" = 18.25 ft

       "w" =  15 ft,

And "h" =(5 1/5) =(25+1)/5=26/5=5.20ft.

Substituting the values of "l", "w" and "h" in the formula (V = lwh), we get,

Volume of the shed (V) = 18.25[tex]\times[/tex] 15 [tex]\times[/tex] 5.20

[tex]or, V = 1423.5ft^{3}[/tex].

Volume: It is a measure of occupied three-dimensional space by an object or a substance, or that is enclosed within a container.

To learn more about Volume, click on the link below.

https://brainly.com/question/28058531

#SPJ1

Answer:

1/6(0.16), 3/14(0.21), 2/7(0.28), 1/3(0.33)

Step-by-step explanation:

Your answer should be: [tex]\frac{1}{6} < \frac{3}{14} < \frac{2}{7} < \frac{1}{3}[/tex]

Otherwise known as [tex]\frac{1}{6}, \frac{3}{14}, \frac{2}{7}, \frac{1}{3}[/tex]

---------------------------------------------

Hope this helps!

Have a great day and God bless! :)

[tex] \huge \sf { \star{ \green{ \underbrace{\overbrace{\blue{Answer}}}}}}{\star} \\ \\ \: \: \sf \rightarrow{\fbox{21 \: \: Pages}}[/tex]

Step-by-step explanation:

[tex]\texttt{Kate reads} \\ \: \rightarrow \: \tt \: 3 \frac{1}{2} in \: \frac{1}{6} \texttt{ of an hour} \\ \\ \rightarrow 3 \: \frac{1}{2} or \frac{7}{2} \\ \\ \tt = 3.5 \: \texttt{pages in } \frac{1}{6} \texttt{of an hour} \\ \\ \frac{1}{6} = \frac{10 \: min}{60 \: min} \\ \\ \therefore \: 3.5 \: pages \: in \: 10 \: min \: \\ \\ \: \: multiply \: \: 3.5 \: \: by \: \: 6 \: times \: \: \\ \: \: \\ \\ = > 3.5 \times 6 \\ \\ \ = > \blue{\fbox{\pink {21 \tt pages}}}[/tex]

Kate will read 21 pages at the same ratio as much as in 3 1/2 pages in 1/6 of an hour.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Given that,

Kate read 3 1/2 pages in 1/6 of an hour.

1/6 hour → 3 1/2 pages

              → 3 + 1/2 pages

               → 7/2 pages

Multiply by 6 on both sides,

1 hour  → (7/2) × 6 = 21 pages

Hence "Kate will read 21 pages at the same ratio as much as in 3 1/2 pages in 1/6 of an hour".

For more information about ratios and proportions,

brainly.com/question/26974513

#SPJ2

Answer:42/80

Step-by-step explanation:

We know that the shop only buys abanans with lengths between 13 cm and 20 cm.So, the fraction of the 80 bananas is actually a ratio between the y-values of each lenth (13 and 20 cm) and the total 80. First, let's see which y-values belong to each length.Notice that 13 belons to 20 at Cumulative Frequency. And 20 belongs to 62. So, the pairs are (13,20) and (20,62).This fraction means that the shop only buys 42 bananas out of 80, because those are between 13 cm and 20 cm.

The solution is: the interquartile range of the lengths of bananas is  between 13 cm and 20 cm.

In descriptive statistics, the interquartile range tells you the spread of the middle half of your distribution. Quartiles segment any distribution that's ordered from low to high into four equal parts. The interquartile range (IQR) contains the second and third quartiles, or the middle half of your data set.

We know that the shop only buys bananas with lengths between 13 cm and 20 cm.

So, the fraction of the 80 bananas is actually a ratio between the y-values of each length (13 and 20 cm) and the total 80.

First, let's see which y-values belong to each length.

Notice that 13 belongs to 20 at Cumulative Frequency.

And 20 belongs to 62.

So, the pairs are (13,20) and (20,62).

This fraction means that the shop only buys 42 bananas out of 80,

because those are between 13 cm and 20 cm.

Hence, The solution is: the interquartile range of the lengths of bananas is  between 13 cm and 20 cm.

learn more on interquartile range click:

https://brainly.com/question/27521634

#SPJ2

Answer:0.705,srry if its wrong :(

Step-by-step explanation:

I just answered this. please look at your copy post.

Answer:

y = -3x - 12

Step-by-step explanation:

y - 7 = -3x  Put in the slope intercept form for a line

y = -3x + 7

Use the slope (-3), the x(-6) and the y(6) to find the y intercept and to write the equation for the line.

y = mx + b

6 = (-3)(-6) + b

6 = 18 + b  Subtract 18 from both sides

-12 = b

y =mx + b

y = -3x -12

Answer:

A) 0.23

B) 0.14

Step-by-step explanation:

Part A)
To solve this question, we'll have to use the Bernoulli formula.
The formula claims that the probability to get [tex]k[/tex] successes out of [tex]n[/tex] attempts is given by [tex]\binom{n}{k}p^k(1 - p)^{n - k}[/tex].

In our case, [tex]n = 5[/tex], [tex]k = 3[/tex], and [tex]p = 0.78[/tex].

Therefore, the probability that 3 out of the 5 drivers use their turn signal is

[tex]\binom53 \times 0.78^3 \times 0.22^2 \to 0.23[/tex]

Part B)

We are told that the police officer pulled over 5 drivers, 3 of them using turn signals. In this part, we are asked "what is the probability that the 5th driver uses the turn signal and only 2 of the previous four drivers use turn signals?".

[tex]0.78 \times \binom42 \times 0.78^2 \times 0.22^{4-2}\\\to 0.14[/tex]

Step-by-step explanation:

[tex]7x + 2 = 30 \\ 7x = 30 - 2 \\ 7x = 28 \\ x = \frac{28}{7} \\ x = 4[/tex]