What is the sum of the numbers

What Is The Sum Of The Numbers

Answers

Answer 1

Answer:

B  4i sqrt(2)

Step-by-step explanation:

sqrt(-2) = sqrt(-1) * sqrt(2) = i sqrt(2)

sqrt(-18) = sqrt(-1) sqrt(2) sqrt(9) = 3i sqrt(2)

Add them together

i sqrt(2) + 3i sqrt(2)

4i sqrt(2)

Answer 2

Answer:

B.) [tex]4\sqrt{2}i[/tex]

Step-by-step explanation:

Simplify both radicals from negative form (the square root of -1 is i ):

[tex]\sqrt{-1*2} +\sqrt{-1*18} \\\\\sqrt{2}i+\sqrt{18}i[/tex]

Simplify [tex]\sqrt{18}[/tex] :

[tex]\sqrt{9*2}\\\\\sqrt{9}*\sqrt{2}\\\\ 3\sqrt{2}i[/tex]

Add:

[tex]1\sqrt{2}i+3\sqrt{2}i\\\\4\sqrt{2}i[/tex]

:Done


Related Questions

Michael has 4 red shirts, 3 green shirts, and 5 blue shirts in his closet. If he randomly selects a shirt, what is the probability that he chooses green or red?

Answers

First add
4 red + 3 green + 5 blue = 12

Then add the likelihood that you will choose a green or red
4 + 3 = 7

The answer is 7/12

Answer:

First add

4 red + 3 green + 5 blue = 12

Then add the likelihood that you will choose a green or red

4 + 3 = 7

The answer is 7/12

Step-by-step explanation:

USA TESTPREP

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Answers

Answer:

D

Step-by-step explanation:

see attachment

Which pairs of events describe independent events?
Select all that apply.

Flipping a coin and having it land with the tails side up; drawing a 7 from a standard deck of cards.

Drawing a king from a standard deck of cards and not replacing it; then drawing a queen from the same deck of cards.

Rolling a standard six-sided die and having it land on a 1; selecting a blue block from a tub of red and blue blocks.

Pulling a red sock from a drawer with 3 red socks and 5 blue socks and not replacing it; then pulling another red sock from the same drawer.

Answers

Answer:

in situations FIRST and THIRD the events described are independent

Answer:

A, C, and D

Step-by-step explanation:

need help and an explanation!thanks!!​

Answers

Answer: A

Step-by-step explanation:

[tex]V=\frac{l*w*h}{3}[/tex]

[tex]V=\frac{(15in)(15in)(19in)}{3} \\V=1425in^3[/tex]

There are 70,000 bacteria present in a culture. An antibiotic is introduced to the culture and the number of bacteria is reduced by half every 4 hours. Which of the following statements are true? Select all that apply.
A.) two hours after the antibody is introduced , there are 35000 bacteria present in the culture
B.) 24 hours after the antibiotic is introduced , the number if bacteria in the culture is reduced to 1093
C.) the number of present in the culture during the 24 hours after the the antibiotic is introduced is an example of exponential decay
D.) the half-life of the bacteria after the antibiotic is introduced is 2 hours
E.)the function B(x)=70000(0.5)^x where x is the number of 4 hour periods represents the amount of bacteria present after the antibiotic is introduced

Answers

Answer:

c

Step-by-step explanation:

the number of bacteria is introduced

The function B(x) = 70000(0.5)ˣ, where x represents the number of 4 hour periods, represents the amount of bacteria present after the antibiotic is introduced. Therefore, option D is the correct answer.

What is the exponential function?

Exponential function, as its name suggests, involves exponents. But note that, an exponential function has a constant as its base and a variable as its exponent but not the other way round (if a function has a variable as the base and a constant as the exponent then it is a power function but not an exponential function).

In any situation where an amount grows or declines by a set percent every time period can be represented using an exponential function.  Since the amount of bacteria is reduced by half, or 50%, every 4 hours, this is exponential decay.

Exponential functions such as this are of the form

y = a(1+r)ˣ, where a represents the initial population, r is the percent of growth or decrease, and x is the number of time periods.  In this situation, the initial population, a, is 70000.  Since the number of bacteria decreases by half, r = -0.50.  This gives us

y = 70000(1+-0.50)ˣ, or y = 70000(0.50)ˣ.

In 24 hours, there are 6 4-hour periods.  This means x = 6; this gives us

y = 70000(0.50)⁶ = 1093.75.

Therefore, option D is the correct answer.

Learn more about the exponential function here:

brainly.com/question/11487261.

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What’s the answer????

Answers

Answer:

B. b = (24 x 16) - 8

Step-by-step explanation:

I chose this answer because there are 24 boxes with 16 baseballs in each of them. Pedro only used 8 of these baseballs, which means he didn't use (24 x 16) - 8 balls.

If this answer is correct, please make me Brainliest!

20 POINTS FOR 2 QUESTION PLEASE HELP WILL GIVE BRAINLIESTT
(Will Comeback to make another answer and then give u brainly if ur the only answer)

Answers

Answer: what is the question?

Step-by-step explanation:

Does anybody know how to solve this? (Click for full picture if it doesn’t show up)

Answers

Step-by-step explanation:

angle A = 38

now come with me inside the triangle ABC

use two property of isoceles traingle and sum of angles of triangle

you get x= 71°

Answer:

x = 71°

Step-by-step explanation:

Notice that angle D is the inscribed angle of arc BC. By definition of inscribed angles, the measure of an arc's inscribed angle is half the measure of the arc. Also we see that angle A is the central angle of arc BC. By definition, the central angle measure is equal to the arc measure.

Here, ∠D = 19, which means arc BC = 19 * 2 = 38°. Then, that means ∠A = 38.

Notice that ABC forms a triangle and remember that all the angles of a triangle add up to 180°. Since ΔABC is isosceles, we know that the base angles are congruent, so let's say they're both x. Since ∠A = 38°, ∠B = ∠C = x, we can add them up to get 180:

∠A + ∠B + ∠C = 180

38 + x + x = 180

38 + 2x = 180

2x = 142

x = 142/2 = 71

Thus, x = 71°.

What is the probability of getting a total of 6 or 8 on a roll of a pair of dice?

Answers

Answer:

5/36

Step-by-step explanation:

the probability is 15/36

WHAT IS THE VOLUME OF A CYLINDER IF THE HEIGHT IS 7.5 CM AND THE RADIUS IS 5 CM?

Answers

Answer:

589.05

Step-by-step explanation:

what is the radius and diameter of a 14cm circle

Answers

Answer:

Radius= 7cm

Diameter= 14cm

Step-by-step explanation:

Hope it Helped!!

simplify the expression 4x + 3 - x - 7​

Answers

Answer:

3x - 4

Step-by-step explanation:

The first, and last, step is to add like terms (4x and -x, 3 and -7), like so:

4x + 3 - x - 7

4x - x = 3x

3 - 7 = - 4

3x - 4

Which graph represents the hyperbola = 1?

Answers

Answer:

yall not all of the answers for these ones are on here. go to symbolab and type in the hyperbola like x^2/a^2-y^2/b^2=1 and look at where it intersects the axis. it'll get you the right answer

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The third graph aka the one that looks most like an X. It's right because Edge said so.

Assuming its y^2/6^2 - x^2/2^2 = 1 I repeat the answer is the third graph. C.

Which can be used to describe an equivalent expression for (s Superscript 6 Baseline) Superscript negative 3? Adding the exponents will create an equivalent expression. Dividing the exponents will create an equivalent expression. There are three factors of StartFraction 1 Over s Superscript 6 Baseline EndFraction. There are three factors of StartFraction 1 Over s Superscript 3 Baseline EndFraction.

Answers

Answer:

D

Step-by-step explanation:

i took the test

The equivalent expressions of [tex](x^{6} )^{-3}[/tex] will be [tex](x )^{-18}[/tex].

What are equivalent expressions?

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

To derive the equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.

The given expression is;

[tex](x^{6} )^{-3}[/tex]

Required to Determine the equivalent expression.

First, we need to evaluate the expression in the bracket:

Apply the following law of indices:

[tex](x^a)^b = x ^{ab}[/tex]

So:

[tex](x^{6} )^{-3}[/tex]

becomes

[tex](x )^{6 \times -3}\\\\[/tex]

[tex](x )^{-18}[/tex]

Hence: the equivalent expressions of [tex](x^{6} )^{-3}[/tex] will be [tex](x )^{-18}[/tex].

Learn more about expression here;

https://brainly.com/question/14083225

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Nina recorded collected data on the number of tickets that people had received and how many accidents they had been in. She made a scatterplot of her data. What is the best line of fit for this data?

Answers

Answer:

A straight line dividng the data into two equal parts.

Step-by-step explanation:

A scatter plot is drawn by representing  the numbers with the dots on the specific points to interpret their values.The best line of fit for scatter plot data is a straight line. It divides the data  into two parts. Some points may lie above the  data and some below the data. Some points may lie on the line. All the points can also lie on the line and none of the points can also lie on the line.

The numbers $1,$ $2,$ $\dots,$ $10$ are to be entered into the 10 boxes shown below, so that each number is used exactly once: \[P = (\square + \square + \square + \square + \square)(\square + \square + \square + \square + \square).\]What is the maximum value of $P$? What is the minimum value of $P$?

Answers

Hint

If we define x to be the value of one of the factors, since 1 + 2 + 3 + 4 + 5 ... + 10 = 11(5) = 55, the value of the other factor has to be 55-x.

To maximize P, you'd like to make x as close as possible to the vertex you found. What if you want to minimize P? Remember x must be an integer.

I hope this helps :)

You randomly survey men and women about whether they plan to watch a football game on Sunday afternoon. A total of 40 men plan to watch a football game and a total of 17 women do not plan to watch a football game. A total of 45 women are surveyed. A total of 33 people do not plan to watch a football game. How many people did you survey?

Answers

Answer: 101

Step-by-step explanation:

45 women total

17 women will not watch the game

So 33 people did not want to watch the game and 17 are women

33-17 = 16 men who won’t watch the game

So 40 men who will and 16 men who won’t equals 56 men and 45 women

56+45= 101

Use the correct inverse trig function to find the missing angle, round to the nearest whole number.
15
?
31

Answers

Answer:

61 degrees is the missing angle measure

Step-by-step explanation:

[tex]cos^{-1} (\frac{15}{31})[/tex]     Use this equation to find the missing angle

61 degrees is the missing angle measure

If this asnwer is correct, please make me Brainliest!

If the ratio StartFraction negative 294 Over x plus 10 EndFraction is equivalent to 21​, find the value of x. Use pencil and paper. Write another pair of equivalent ratios like these. Show how to find the value of x.

Answers

Answer:

(1)x=-24

(2)Another pair of equivalent ratio is:

[tex]\dfrac{-64}{x+5}=8$ where $x=-13[/tex]

Step-by-step explanation:

Given the ratio:

[tex]\dfrac{-294}{x+10}=21[/tex]

Part 1: We determine the value of x.

[tex]\dfrac{-294}{x+10}=21\\$Cross multiply$\\21(x+10)=-294\\21x+210=-294\\$Collect like terms$\\21x=-294-210\\21x=-504\\$Divide both sides by 21$\\x=-24[/tex]

Part 2: We write another pair of equivalent ratios.

Let

[tex]\dfrac{-64}{x+5}=8\\$Cross multiply$\\8(x+5)=-64\\8x+40=-64\\$Collect like terms$\\8x=-64-40\\8x=-104\\$Divide both sides by 8$\\x=-13[/tex]

Find the mean for each data set.

Number of Flowers




<-----I-----I-----I-----I-----I-----I-----I-----I-----I----->
10 11 12 13 14 15 16 17 18

Answers

Answer:

14

Step-by-step explanation:

you add them all up and divide by how much there are

(10+11+12+13+14+15+16+17+18)=126

(126/9)=14

Answer:

14

Step-by-step explanation:

first you add them all up and then divide alll of them again

Dylan spends a total of $118.50 on 6 bags of popcorn and 12 drinks. Camden spends a total of $48.75 on 1 bag of popcorn and 6 drinks. Write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. Using these equations, determine and state the price of a drink, to the nearest cent.

Answers

Answer:

The price of a drink is $7.25

Step-by-step explanation:

Let d represent the price of a drink

let p represent the price of a popcorn

6p+12d=118.50  equation 1

p+6d=48.75    equation 2

multiply both equation 1  by 2

multiply equation 2 by 4

12p+24d=237   equation 3

4p+24d=195 equation 4

subtract equation 4 from 3

8p=42

p=42/8

p=$5.25

Substitute for p in equation 1

(6*5.25 )+12d=118.50

31.5 +12d=118.50

12d=118.50-31.5 0

12d=87

d=87/12

d=$7.25

PLZ HELP ASAP IM TIMED THX

Find surface area

Answers

whats the radius of the cylinder?

what is w in the equation -20=5w

Answers

Divide each term by 5.
So, 5w/5=W and -20/5 =-4.

So,

W = -4

I hope that helps.

Answer:

-4

Step-by-step explanation:

Since this has an equals sign and in both sides it can be divisible. So you take 5 and divide it on both sides to get -4

Can someone help me on this?

Answers

Answer:

B

Step-by-step explanation:

asdddddddddddddddddddddddddddddddsdasdasdasdasdas

Answer:

b

Step-by-step explanation:

Find the area. The figure is not drawn to scale.
1.
36 in.
40 in.
33 in.
-

Answers

Answer: 47,520

Step-by-step explanation: 36 times 40 times 33

whats 21/40 in equivalent decimals​

Answers

The equivalent decimals for 21/40 is 0.525

An economy package of cups has 750 green cups. If the green cups are 30% of the total package, how many cups are in the package?

Answers

Answer:

2500 cups

Step-by-step explanation:

Let c = total cups

c*30% = green cups

c*.30 = 750

Divide each side by .30

.30c/.30 = 750/.30

c =2500

bag of potatoes weighs 10 pounds what is the weight of the potatoes on ounce

Answers

Answer:

The potato is a root vegetable native to the Americas, a starchy tuber of the plant Solanum tuberosum, and the plant itself, a perennial in the family Solanaceae. Wild potato species, originating in modern day Peru, can be found throughout the Americas, from the United States to southern Chile.

Step-by-step explanation:

Answer:

160 ounces

Step-by-step explanation:

Use the order of operations to simplify -5 + 3(7.2 - 3.2).
A. 7
B. 7 3/5
C. -8
D. 12 2/5​. the answer is 7 for those who need help with the same question

Answers

-5+3(7.2-3.2)
=-5+3(4.0)
=-5+12
=12-5
=7

Answer:

a

Step-by-step explanation:

The distributive property can be applied to which expression to factor 12x3 – 9x2 + 4x – 3?

Answers

Answer:

3x2(4x – 3) + 1(4x – 3)

Step-by-step explanation:

It will be 45

I got it correct
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